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KEHUA TECH ESI215-100K-M User Manual

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Energy Storage System
ESI215-100K-M
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Summary of Contents for KEHUA TECH ESI215-100K-M

  • Page 1 Energy Storage System ESI215-100K-M User Manual...
  • Page 3 Copyright © Xiamen Kehua Digital Energy Tech Co., Ltd. 2024. All rights reserved. No part of this document may be reproduced or transmitted in any form or by any means without prior written consent of Xiamen Kehua Digital Energy Tech Co., Ltd. Trademarks and Permissions and other Kehua trademarks are the licensed trademarks of Xiamen Kehua Digital Energy Tech Co., Ltd.

  • Page 4: Target Group

    Foreword Summaries Thank you for choosing the energy storage system product! This document gives a description of the energy storage system ESI215-100K-M, including the features, performance, appearance, structure, working principles, installation, operation and maintenance. etc. Please save the manual after reading, in order to consult in the future.

  • Page 5: Change History

    Energy Storage System ESI215-100K-M User Manual Foreword Symbol Description Alerts you to a high risk hazard that will, if not avoided, result in serious injury or death. Alerts you to a medium low risk hazard that could, if not avoided, result in moderate or minor injury.

  • Page 6: Table Of Contents

    Energy Storage System ESI215-100K-M Contents User Manual Contents 1 Safety Description ......................... 1 1.1 Safety Announcements ............................1 1.1.1 Use Announcements............................1 1.1.2 Symbol Illustration............................2 1.1.3 Battery Use Announcements ........................3 1.1.4 Grounding Requirements ..........................5 1.1.5 Electrical Connection ............................ 6 1.1.6 Measurement Under Operation ........................
  • Page 7 Energy Storage System ESI215-100K-M User Manual Contents 2.3 Heat Dissipation Design ............................23 2.4 Communication ..............................24 2.5 Working Principle ..............................26 2.6 Working Status ..............................27 2.7 Work Mode ................................29 2.8 Protection Function............................... 30 3 Installation ............................ 32 3.1 Installation Process ...............................
  • Page 8 Energy Storage System ESI215-100K-M Contents User Manual 4.1.6 24V Output Connection ..........................70 4.1.7 External Communication Connection ......................72 4.1.8 Network Signal SPD LAN Connection ..................... 73 4.2 Check the Installation ............................75 5 APP Operation Illustration ....................... 76 5.1 APP Introduction..............................76 5.2 APP Connection Operation ..........................
  • Page 9 Energy Storage System ESI215-100K-M User Manual Contents 7.2.4 Expansion Tank Maintenance of Liquid Cooling Unit ................116 7.2.5 SPD Replacement............................117 7.2.6 Input Side Fuse Replacement ........................118 7.2.7 Fan Maintenance ............................120 7.2.8 Battery Maintenance ..........................124 8 Troubleshooting ........................127 8.1 Deal with Common Fault ...........................

  • Page 11: Safety Description

    Energy Storage System ESI215-100K-M User Manual 1 Safety Description 1 Safety Description This chapter mainly introduces the safety announcements. Prior to performing any work on the device, please read the user manual carefully, follow the operation and installation instructions and observe all danger, warning and safety information.

  • Page 12: Symbol Illustration

    Energy Storage System ESI215-100K-M 1 Safety Description User Manual Don't touch terminals or conductors that connected with grid to avoid lethal risk! Please do not put finger or tool into the rotating fans to avoid human injury or device damage.

  • Page 13: Battery Use Announcements

    Energy Storage System ESI215-100K-M User Manual 1 Safety Description Symbol Illustration site. Pay attention to safety External grounding mark. It needs to be connected with grounding to keep the operator safe. Beware of hot surface. While operating, the temperature of air outlet may be high, do not touch the air outlet louver to avoid scald.
  • Page 14 Energy Storage System ESI215-100K-M 1 Safety Description User Manual DO NOT place the battery under the environment where with high temperature or heating device, such as resistance furnace, boiler etc. Battery over-temperature is easy to cause leakage, smoking, releasing flammable gas, thermal runaway, firing or explosion.

  • Page 15: Grounding Requirements

    Energy Storage System ESI215-100K-M User Manual 1 Safety Description Before installing the energy storage system, please configure the fire-fighting device according to the construction standards, such as fire-fighting sands, carbon dioxide extinguisher, etc. Before commissioning, ensure that the fire-fighting device has satisfied the requirements of local laws and regulations.

  • Page 16: Electrical Connection

    Energy Storage System ESI215-100K-M 1 Safety Description User Manual In the event of grounding fault in the energy storage system, some part that should not be charged may have lethal voltage, and touch by accident will cause serious damage. Before installation and operation, ensure that there is no system grounding fault and take appropriate protective measure.

  • Page 17: Esd Protection

    Energy Storage System ESI215-100K-M User Manual 1 Safety Description 1.1.7 ESD Protection The static produced by human body may cause the sensitive components on the PCB damage.  Avoid unnecessary touch for PCB.  Wear an anti-static wrist strap before touching sensitive components, and the other end should be well grounded.

  • Page 18: Operator Requirements

    Energy Storage System ESI215-100K-M 1 Safety Description User Manual  Set warning signs or safety warning belt in the operation area, which is to avoid unwanted person entering and cause human injury or device damage.  After maintenance, ensure that pull out the key of energy storage system and save it properly.

  • Page 19: Overview

    Energy Storage System ESI215-100K-M User Manual 2 Overview 2 Overview This chapter mainly introduces the device features, appearance, operating mode, etc. 2.1 Product Intro The product is the energy storage system with system power of 100kW/215kWh. The product matches with battery and management system to form a integrated system, the output end connects with 400Vac low-voltage AC grid to charge and discharge the battery, which realize the energy storage and backup.

  • Page 20: Model Meaning

    Energy Storage System ESI215-100K-M 2 Overview User Manual Grid-tied operation of energy storage system needs to obtain the permission of local power supply department and performed by professionals. The AC side of energy storage system should be connected with IT distribution system (as shown in Figure2-2).

  • Page 21: Features

    Energy Storage System ESI215-100K-M User Manual 2 Overview Figure2-4 Nameplate position diagram The parameters in the above nameplate are just for reference, detailed technical specifications please see the actual product. 2.1.2 Features Innovative Structure Design  With small volume, high power density, the footprint is small.

  • Page 22: Application Scene

    Energy Storage System ESI215-100K-M 2 Overview User Manual Stable System Character  With good adaptability to grid, the output power quality is excellent.  Reactive power is adjustable, the power factor range is -1 (lagging) ～+1 (leading).  The cabinet with IP54 outdoor design, reliable and durable, can be suitable for complex climate condition.

  • Page 23: Appearance And Structure

    Energy Storage System ESI215-100K-M User Manual 2 Overview 2.2 Appearance and Structure 2.2.1 Appearance Figure2-7 Appearance The operation panel of energy storage system is as shown in Figure2-8, corresponding illustration please see Table2-1. Figure2-8 Operation panel Table2-1 Illustration for operation panel...
  • Page 24 Energy Storage System ESI215-100K-M 2 Overview User Manual Silk screen Name ○ Anti-misoperation cover ○ E-STOP E-STOP emergency stop button In order to avoid misoperation, E-STOP designs an anti-misoperation cover. When is needs to be operated, please rotate the cover to left (or right) and then press the E-STOP button.

  • Page 25: Structure Layout

    Energy Storage System ESI215-100K-M User Manual 2 Overview Indicator Status Illustration Flickers blue (frequency: 1s) Energy storage system abnormal and with import alarm. Red indicator on AC and DC power has been disconnected.  Charging. Blue flow indicator  Shows the battery capacity.
  • Page 26 Energy Storage System ESI215-100K-M 2 Overview User Manual Figure2-9 Structure layout (open front door) Table2-3 Structure layout illustration Name Illustration ○ Lifting ring Used for lifting transportation. ○ Antenna Used for enhance the signal. ○ Illuminating lamp Used to light up the battery cabin.

  • Page 27: Battery Pack

    Energy Storage System ESI215-100K-M User Manual 2 Overview Name Illustration Leak detection Water leakage/ponding detection (external reasons) inside the ○ controller cabinet. ○ Signal SPD It is the SPD of external communication. They are the communication connection of water immersion, ○...
  • Page 28 Energy Storage System ESI215-100K-M 2 Overview User Manual Table2-4 Structure layout illustration Name Illustration Used to balance the pressure difference of inner and external ○ Anti-explosion valve battery pack (maintenance While installing, transporting and maintenance, it should be ○ switch) disconnected to ensure safety.
  • Page 29 Energy Storage System ESI215-100K-M User Manual 2 Overview Table2-5 PCS structure layout illustration Mark Name Illustration ○ BAT.+/BAT.- Water-proof plug Reserved battery voltage sampling port. ○ Strip indicator panel Indicate the work status of PCS. ○ B+/B- DC terminals Wiring terminals of DC side.
  • Page 30 Energy Storage System ESI215-100K-M 2 Overview User Manual Figure2-12 Strip indicator panel Table2-6 Indicator status illustration Mark Color Name Status illustration On: the inner power of the PCS has been established. Operation power ○ POWER Green indicator Off: the inner power of the PCS has not been established.
  • Page 31 Energy Storage System ESI215-100K-M User Manual 2 Overview Dehumidifier The energy storage system has dehumidification function. The dehumidifier (as shown in Figure2-13) can adjust the humidity inside the energy storage system to avoid the inner device aging, steel structure parts rusting. Default humidity is 75%RH (0-100% adjustable, we suggest keeping default setting).

  • Page 32: Grounging Design

    Energy Storage System ESI215-100K-M 2 Overview User Manual Leak Detection Controller The energy storage system has leakage detecting function. The leak detection controller (as shown in Figure2-15) can select different response sensitivity by the dial switch on the panel to adapt the requirement of different detecting environment and level.

  • Page 33: Wiring Holes Design

    Energy Storage System ESI215-100K-M User Manual 2 Overview Figure2-16 Cabinet grounding terminals diagram 2.2.4 Wiring Holes Design The wiring connection of energy storage system and external device is from the bottom wiring holes (as shown in Figure2-17). Figure2-17 Bottom wiring holes diagram (unit: mm) 2.3 Heat Dissipation Design...

  • Page 34: Communication

    Energy Storage System ESI215-100K-M 2 Overview User Manual Figure2-18 Heat dissipation diagram Inlet air volume requirement: 2100m 2.4 Communication The energy storage system has one 9 pins’ external communication port (position as shown in Figure2-19) to realize the communication of logger and BMS. And it also provides 2 network signal SPD LAN ports (position as shown in Figure2-20) to communicate with upper-computer.
  • Page 35 Energy Storage System ESI215-100K-M User Manual 2 Overview Table2-9 Pin definition of external communication port Name Illustration ○ BMS：CAN2-H external communication port (reserved debugging) ○ BMS：CAN2-L external communication port (reserved debugging) ○ Grounding terminal (reserved for debugging) Reserved RS485 communication port of Kehua’s meter ○...

  • Page 36: Working Principle

    Energy Storage System ESI215-100K-M 2 Overview User Manual 2.5 Working Principle The energy storage system is made up of 215kWh energy storage unit and one modular PCS, its capacity is 0.5C. The energy storage unit is made up of five liquid cooling battery pack, each battery pack has 48 pieces of cell, the cell capacity is 280Ah, every energy storage unit is 1P240S, the nominal capacity is 215 kWh.

  • Page 37: Working Status

    Energy Storage System ESI215-100K-M User Manual 2 Overview Figure2-22 Distribution principle diagram 2.6 Working Status The working status of energy storage system includes startup, running, normal halt and fault. The conversion process of each working status is as shown in Figure2-23.
  • Page 38 Energy Storage System ESI215-100K-M 2 Overview User Manual Normal halt Work mode is set to Without fault and grid-tied charge from work mode is set to grid-tied discharge Grid-tied Grid-tied grid-tied discharge Startup discharge charge Work mode is set to...

  • Page 39: Work Mode

    Energy Storage System ESI215-100K-M User Manual 2 Overview Normal Halt Normal halt is the status that the energy storage system received the OFF command while running and perform the OFF operation and normal halt. Fault When the energy storage system detects fault, if the system is running, it will stop running immediately and off the connection with grid and load.

  • Page 40: Protection Function

    Energy Storage System ESI215-100K-M 2 Overview User Manual In off-grid mode, electromoter cannot be connected with the energy storage system. If the electromoter must be connected, it is necessary to add slow-start device to electromoter to start it. 2.8 Protection Function The energy storage system integrates perfect protection function (as shown inTable2-11) to ensure the reliability of system.
  • Page 41 Energy Storage System ESI215-100K-M User Manual 2 Overview Protection Illustration function The energy storage system can detect the abnormal insulation resistance value and do corresponding response. When the insulation Insulation resistance value lower than the allowed range, the energy storage...

  • Page 42: Installation

    Energy Storage System ESI215-100K-M 3 Installation User Manual 3 Installation This chapter mainly introduces the installation of energy storage system, including installation process, installation preparation, transportation, unpacking and checking, installation procedures, etc. 3.1 Installation Process Start Unpacking and checking Install immediately?

  • Page 43: Unpacking And Checking

    Energy Storage System ESI215-100K-M User Manual 3 Installation 3.2 Unpacking and Checking Determine the unpacking site in advance. Generally, the unpacking site should be as close to the installation position as possible. Check the External Package The energy storage system has been completely tested and strictly inspected before leaving the factory, but damage may still occur during transporting, so a detailed inspection is required after arrival.
  • Page 44 Energy Storage System ESI215-100K-M 3 Installation User Manual Check the Deliverables Unpack the package, check if the types of the accessories are complete and correct. If there is any discrepancy, take notes and contact the distributor immediately. Figure3-3 Packing list The name and quantity of deliverables, please see the packing list.
  • Page 45 Energy Storage System ESI215-100K-M User Manual 3 Installation  The energy storage system should be placed in the place where is clean and dry and avoid direct sunshine, rain or ponding, strong mechanical vibration, impact or strong electric field. No corrosive or inflammable or explosive gas or object in the storage environment.

  • Page 46: Selection Of Installation Site

    Energy Storage System ESI215-100K-M 3 Installation User Manual From the date of delivery, every 6 months of storage, please recharge the energy storage system according to the specified requirements (see section 7.2.8 ). When the energy storage system has entered or passed through a humid environment, it is recommended to keep it in a dry and ventilated environment for more than 24 hours.

  • Page 47: Installation Environment Requirements

    Energy Storage System ESI215-100K-M User Manual 3 Installation  The energy storage system should be installed at a distance of no less than 12m from residential buildings and greater than 30.5m from crowded places such as schools and hospitals.  The distance between the energy storage system and the production building must meet local fire codes or standards.

  • Page 48: Installation Space

    Energy Storage System ESI215-100K-M 3 Installation User Manual System non- 0%~ 95%, With good -35℃~ +55℃ Altitude:≤3000m condensing. ventilation Figure3-6 Installation Environment Requirements When the energy storage system is exposed to sunlight, the internal temperature rise will increase, which may affect the charging and discharging performance, so it is recommended to install the energy storage system with a sunshade or other sheltering facilities.

  • Page 49: External Fire-Fighting Suggestion

    Energy Storage System ESI215-100K-M User Manual 3 Installation The size of energy storage system is 1000mm×1300mm×2340mm (W×D×H), and the minimum air inlet volume requirement is 2000m If multiple energy storage systems are deployed, refer to the standard GB51048 or local national regulations.

  • Page 50: Transportation

    Energy Storage System ESI215-100K-M 3 Installation User Manual 3.4 Transportation Please select suitable transportation device according to the weigh (<2.5t) and size (1000mm× 1300mm×2250mm (W×D×H), without rings) of energy storage system. When transporting on the installation site, the forklift or crane can be used to transport the energy storage system.

  • Page 51: Lifting Transportation

    Energy Storage System ESI215-100K-M User Manual 3 Installation Figure3-8 Forklift transportation diagram (unit: mm)  Forklift should have a safety factor of at least 2 times weight of the energy storage system.  When lifting the energy storage system, keep the centre of gravity of the energy storage system at the center of the two forks and keep the handling process slow and smooth.
  • Page 52 Energy Storage System ESI215-100K-M 3 Installation User Manual  Be sure to set up warning signs or warning tapes to avoid non-staff entering the lifting area to avoid accidents.  Remove all obstructions, such as trees and cables, that exist or may exist during the move.

  • Page 53: Lifting Operation

    Energy Storage System ESI215-100K-M User Manual 3 Installation  The door of the energy storage system cabinet is locked.  Ensure that the joint of the flat tapes used is safe and reliable, and ensure that each flat tapes connected to the ring are equal in length, to avoid uneven lifting, which could result in the device toppling over.

  • Page 54: Installation Preparation

    Energy Storage System ESI215-100K-M 3 Installation User Manual Figure3-9 Lifting diagram The vertical height from the hook to the top of the energy storage system should be more than 5 meters. 3.5 Installation Preparation 3.5.1 Tools Personal protection Safety helmet...
  • Page 55 Energy Storage System ESI215-100K-M User Manual 3 Installation Dust mask Safety belt Transportation tools Hoisting wirerope Lift truck Forklift Crane (>10000kg) Manual forklift Installation tools Wrench Electric screwdriver Ladder...
  • Page 56 Energy Storage System ESI215-100K-M 3 Installation User Manual Mark pen Wiring tools Network cable Cutting plier Needle-nose plier crimping plier Crimping plier Plier Wire cutter Tube plier Open-ended wrench Crimping plier...
  • Page 57 Energy Storage System ESI215-100K-M User Manual 3 Installation Measurement tool Levelling instrument Steel ruler Rectangular ruler Long tap measure Tap measure Long coiled steel ruler Altimeter Laser locator Thermometer Pressure tester Level Phase sequence meter Ammeter Network cable tester Cleaning tools...

  • Page 58: Size

    Energy Storage System ESI215-100K-M 3 Installation User Manual Flashlight Sand paper The installation tools need to be insulated to avoid electric shock. 3.5.2 Size Figure3-10 Size (unit: mm) 3.5.3 Bottom Installation Holes Size The bottom installation holes size of energy storage system is as shown in Figure3-11.

  • Page 59: Mechanical Installation

    Energy Storage System ESI215-100K-M User Manual 3 Installation Figure3-11 Size of bottom installation holes (unit: mm) 3.6 Mechanical Installation The energy storage system can be installed on the U-steel or on the foundation according to the actual condition on site.

  • Page 60: Foundation Requirements

    Energy Storage System ESI215-100K-M 3 Installation User Manual The energy storage system is heavy (<2.5t). Before building the foundation, the installation site conditions (mainly geological conditions and environmental climate conditions, etc.) should be investigated in detail. And then the design and construction of the foundation can be performed.

  • Page 61: Operation Preparation

    Energy Storage System ESI215-100K-M User Manual 3 Installation Cable Trench Requirements Cable routing should be taken into account when building the foundation. Based on the cable inlet holes of the energy storage system, in order to facilitate the subsequent electrical connection, it is recommended to build cable trenches at the bottom of the energy storage system.

  • Page 62: Operation Procedure

    Energy Storage System ESI215-100K-M 3 Installation User Manual Table3-1 Material preparation Name Specification Quantity Use Source Stainless steel Fasten the energy storage Provided by user expansion bolt system to the ground. Paint on the bolts to avoid Antirust paint 0.3kg Provided by user corrosion.

  • Page 63: U-Steel Installation

    Energy Storage System ESI215-100K-M User Manual 3 Installation The drilling hole size of expansion bolt M16 is: A=20mm, B=the length of expansion tube + 5mm. Step 3 Remove the fastened bolts between the energy storage system and the wooden bracket, move the energy storage system to the foundation, make sure the bottom mounting holes are aligned with the expansion bolts, and slowly place it on the foundation.

  • Page 64: Floor Requirement

    Energy Storage System ESI215-100K-M 3 Installation User Manual Floor Requirement The U-steel installation floor must ensure the stability and safety of the installation position of the energy storage system.  The foundation should have sufficient bearing capacity to effectively support the energy storage system.
  • Page 65 Energy Storage System ESI215-100K-M User Manual 3 Installation Before installation, measure the flatness of the installation surface of U-steel by level. Ensure that the flatness of the installation surface is less than 5mm. Figure3-16 U-steel diagram (Unit: mm) When designing or purchasing U-steel, the following requirements must be met: ...
  • Page 66 Energy Storage System ESI215-100K-M 3 Installation User Manual Step 3 Fasten the U-steel. Figure3-18 Fasten U-steel Step 4 Remove the fastened bolts between the energy storage system and the wooden bracket, move the energy storage system to the U-steel, make sure the bottom mounting holes of the energy storage system are aligned with the installation holes on the U-steel, and slowly place it on the U-steel.
  • Page 67 Energy Storage System ESI215-100K-M User Manual 3 Installation Figure3-20 Fasten the energy storage system ----End...

  • Page 68: Electrical Connection

    Energy Storage System ESI215-100K-M 4 Electrical Connection User Manual 4 Electrical Connection  All the electrical connections must comply with the standards of the country where the project is located.  Before connecting, ensure that breakers in all parts of the energy storage system are disconnected and the AC and DC sides are without electricity.

  • Page 69: Wiring Requirements

    Energy Storage System ESI215-100K-M User Manual 4 Electrical Connection Cable Cable name Cable type Terminal Source Specifications cable: 3×120+1 Copper core cable: ×70 DT-35 Groundi Provided ○ by user Aluminum core cable: DTL-70 230V Outdoor Provided auxiliary ○ 2×4 CE040010...

  • Page 70: Cable Protection

    Energy Storage System ESI215-100K-M 4 Electrical Connection User Manual When the communication cables and the power cables cross, ensure that the two cables are perpendicular to each other as far as possible. It is forbidden to lead other cables into the energy storage system.
  • Page 71 Energy Storage System ESI215-100K-M User Manual 4 Electrical Connection Figure4-2 External grounding terminal connection diagram (U-steel installation) Figure4-3 External grounding terminal connection diagram (foundation installation) The grounding flat steel should be provided by user. The recommended size of the grounding flat steel or cable should be 35mm and above.
  • Page 72 Energy Storage System ESI215-100K-M 4 Electrical Connection User Manual × Energy storage system Lightning √ Grounding system Figure4-4 Grounding connection announcement Step 2 Install the fasten parts of cover plate, as shown in Figure4-5. Figure4-5 Install the fasten parts of cover plate Step 3 Install the cover plates, as shown in Figure4-6.

  • Page 73: Ac Output Connection

    Energy Storage System ESI215-100K-M User Manual 4 Electrical Connection 4.1.4 AC Output Connection The AC output side connection form of the energy storage system are as shown in Figure4-7, Figure4-8. Energy storage Grid system Figure4-7 AC output connection (grid-tied mode)
  • Page 74 Energy Storage System ESI215-100K-M 4 Electrical Connection User Manual Terminal Connection Requirements When connecting terminals and cables of different specifications, make sure (as shown in Figure4-10):  When adopt copper core cables or copper-clad aluminum cables, please use copper terminals.

  • Page 75: Wiring Procedure

    Energy Storage System ESI215-100K-M User Manual 4 Electrical Connection  Make sure that the AC output cables are connected tightly. Otherwise, the device may not operate, or the terminals may be damaged by generated heat after operation due to unreliable connection.
  • Page 76 Energy Storage System ESI215-100K-M 4 Electrical Connection User Manual Figure4-12 Doors’ limiting device diagram Step 2 Unscrew the loose screws of AC wiring plate by screwdriver, and dismantle the wiring plate, as shown in Figure4-13. Figure4-13 Dismantle AC wiring plate...
  • Page 77 Energy Storage System ESI215-100K-M User Manual 4 Electrical Connection Figure4-14 AC wiring hole diagram The wiring plate is configured for multi-core cables as standard. If single-core cables are used, dismantle the standard multi-core wiring plate and replace it with delivered single-core cables wiring plate before routing the cables.
  • Page 78 Energy Storage System ESI215-100K-M 4 Electrical Connection User Manual Figure4-16 Cable stripping operation requirements Figure4-17 Crimp the AC cables The stripping length in above figure is recommended based on the AC output L1/L2/L3/PE using multi-core aluminum wires, terminal DTL120 for L1/L2/L3 and DTL70 for PE. If other terminals are used, the corresponding stripping length = the actual internal length of the terminal + (1~2) mm.

  • Page 79: Auxiliary Power Connection

    Energy Storage System ESI215-100K-M User Manual 4 Electrical Connection  During wiring, the wiring holes of copper bars should be corresponding to the holes on the bottom wiring plate and ensure the cables vertical after wiring, and there is no overlap joint, no stress among the wires and plates.

  • Page 80: Output Connection

    Energy Storage System ESI215-100K-M 4 Electrical Connection User Manual Step 2 Crimp the 230V auxiliary power supply cables, as shown in Figure4-21. Figure4-21 Crimp the 230V auxiliary power supply cables Step 3 Connect the crimped 230V auxiliary power cables to corresponding terminals of the energy storage system.
  • Page 81 Energy Storage System ESI215-100K-M User Manual 4 Electrical Connection Figure4-23 Wiring hole diagram Step 2 Crimp the 24V output cables, as shown in Figure4-24. Figure4-24 Crimp the 24V output cables Step 3 Connect the crimped 24V output cables to corresponding terminals of the energy storage system, as shown in Figure4-25.

  • Page 82: External Communication Connection

    Energy Storage System ESI215-100K-M 4 Electrical Connection User Manual 4.1.7 External Communication Connection Step 1 According to the actual needs, lead the external communication cables go through the bottom wiring hole, as shown in Figure4-26 Figure4-26 Wiring hole diagram Step 2 Crimp the external communication cables, as shown in Figure4-27.

  • Page 83: Network Signal Spd Lan Connection

    Energy Storage System ESI215-100K-M User Manual 4 Electrical Connection The cable colors and number in above figure are only for reference, the actual cable colors and number should be decided according to the conditions on site. If Kehua’s meter is selected, the corresponding wiring diagram is shown in Figure4-29. if other manufacturers' meter is used, it will not be able to communicate.
  • Page 84 Energy Storage System ESI215-100K-M 4 Electrical Connection User Manual Figure4-30 Wiring hole diagram Step 2 Crimp the Network signal SPD LAN cables, as shown in Figure4-31. Figure4-31 Crimp the Network signal SPD LAN cables Step 3 Connect the crimped Network signal SPD LAN cables to the corresponding communication port of the energy storage system, as shown in Figure4-32, Figure4-33.

  • Page 85: Check The Installation

    Energy Storage System ESI215-100K-M User Manual 4 Electrical Connection Step 4 Seal the gaps between the cables and the energy storage system by fireproof mud. Step 5 Reinstall the wiring plate and close the door. Before installing the wiring plate, please check the correctness and firmness of all the connection, and clean up any construction debris in the wiring compartment.

  • Page 86: App Operation Illustration

    Energy Storage System ESI215-100K-M 5 APP Operation Illustration User Manual 5 APP Operation Illustration The parameter values and other details in the figures of this chapter are for illustration only, please refer to the actual display on the APP as standard.

  • Page 87: App Connection Procedure

    Energy Storage System ESI215-100K-M User Manual 5 APP Operation Illustration Figure5-1 APP QR code 5.2.2 APP Connection Procedure Step 1 Connect your mobile phone WIFI to the WIFI of the energy storage system corresponding to, as shown in Figure5-2. Figure5-2 Connect WIFI The energy storage system’s naming rule of WIFI is KC + S/N of logger.
  • Page 88 Energy Storage System ESI215-100K-M 5 APP Operation Illustration User Manual Figure5-3 Operation for connecting with the energy storage system Since the W IFI module of the energy storage system does not have an automatic connection function, you need to make sure that your mobile phone is connected to the WIFI of the energy storage system before daily use of the APP (if the WIFI of energy storage system has been connected once, you only need to tap the corresponding WIFI to connect in the future).

  • Page 89: App Function Introduction

    Energy Storage System ESI215-100K-M User Manual 5 APP Operation Illustration 5.3 APP Function Introduction 5.3.1 APP Icon Illustration Detailed APP icon illustration is shown in Table5-1. Table5-1 APP icon illustration Icon Illustration Icon Illustration Monitoring page Setting interface Application page...
  • Page 90 Energy Storage System ESI215-100K-M 5 APP Operation Illustration User Manual Figure5-4 Monitoring page operation Step 3 Select the device to be monitored to enter the corresponding monitoring info page of the device. ----End In the monitoring info page, you can monitor the running information, alarm information, settings and history records of each device, as described below.
  • Page 91 Energy Storage System ESI215-100K-M User Manual 5 APP Operation Illustration Figure5-5 Monitoring page of energy storage converter  Tap "More Running info" button at the bottom, the following items can be viewed (as shown in Figure5-6). Battery information: BMS system status, total battery current, total battery voltage, battery −...
  • Page 92 Energy Storage System ESI215-100K-M 5 APP Operation Illustration User Manual Figure5-6 More running info page  Tap the bottom icon , you can view the current alarm info. Figure5-7 Alarm info page  Tap the bottom icon , you can view and change the related setting of energy storage converter (as shown in Figure5-8), such as: ON/OFF, system running mode, active power and reactive power, etc.
  • Page 93 Energy Storage System ESI215-100K-M User Manual 5 APP Operation Illustration Figure5-8 Setting info User can view the battery settings by default. If the parameters need to be changed, please contact the manufacturer to confirm. Dehumidifier Tap Dehumidifier in the Device List page to enter corresponding monitor page, as shown in...
  • Page 94 Energy Storage System ESI215-100K-M 5 APP Operation Illustration User Manual Figure5-9 Dehumidifier page  Tap "More running info " button, the work mode can be viewed, as shown in Figure5-10. Figure5-10 More running info page  Tap the bottom icon , you can view the current alarm info of dehumidifier, as shown in Figure5-11.
  • Page 95 Energy Storage System ESI215-100K-M User Manual 5 APP Operation Illustration Figure5-11 Alarm info page Tap BMS in the Device List page to enter corresponding monitor page, as shown in Figure5-12. Figure5-12 BMS monitoring page  Tap "More running info " button, the related info of battery system can be viewed, such as cluster...
  • Page 96 Energy Storage System ESI215-100K-M 5 APP Operation Illustration User Manual Figure5-13 More running info page  Tap the bottom icon , you can view the current alarm info of BMS, as shown in Figure5-14. Figure5-14 Alarm info page...
  • Page 97 Energy Storage System ESI215-100K-M User Manual 5 APP Operation Illustration Liquid Cooling Unit Tap Liquid cooling unit in the Device List page to enter corresponding monitor page, as shown in Figure5-15. Figure5-15 Liquid cooling unit page  Tap "More running info " button, the system info of liquid cooling unit can be viewed, such as the current status of the liquid cooling unit, the return water pressure, the discharge water pressure, etc., as shown in Figure5-16.
  • Page 98 Energy Storage System ESI215-100K-M 5 APP Operation Illustration User Manual Figure5-16 More running info page  Tap the bottom icon , you can view the current alarm info of the liquid cooling unit, as shown in Figure5-17. Figure5-17 Alarm info page...

  • Page 99: Plan Curve

    Energy Storage System ESI215-100K-M User Manual 5 APP Operation Illustration  Tap the bottom icon , you can view the current setting status of the liquid cooling unit, such as ON/OFF, cooling return water, cooling out water and other parameters, as shown in Figure5-18.
  • Page 100 Energy Storage System ESI215-100K-M 5 APP Operation Illustration User Manual Step 1 Tap the System Details in home page (as “1” shown in Figure5-19) to enter the system monitoring page. Step 2 Tap the bottom icon (as “2” shown in Figure5-19) to enter the application page.

  • Page 101: Power Control

    Energy Storage System ESI215-100K-M User Manual 5 APP Operation Illustration Figure5-19 Setting procedure of plan curve The workday and vacation can be defined by user. The power and period about charge and discharge on workday and vacation can be set according to the actual demand.
  • Page 102 Energy Storage System ESI215-100K-M 5 APP Operation Illustration User Manual Figure5-20 Setting procedure of power control In the power control page (as shown in Figure5-21), user can set the related parameters of configuration, anti-countercurrent, and anti-overdemand etc. Figure5-21 Power control page...
  • Page 103 Energy Storage System ESI215-100K-M User Manual 5 APP Operation Illustration Setting item Illustration Remark zero-export or anti-overdemand. The positive or negative symbol determined Can be set to flow to grid as positive according to the Meaning and flow to the grid as negative. When...
  • Page 104 Energy Storage System ESI215-100K-M 5 APP Operation Illustration User Manual Setting item Illustration Remark condition active Maximum active power of allowed power over-demand. When the anti-overdemand function is enabled, the correction value of the power that triggers anti-overdemand (the adjustment...

  • Page 105: On/Off Setting

    Energy Storage System ESI215-100K-M User Manual 5 APP Operation Illustration 5.3.5 ON/OFF Setting Step 1 Select "Energy storage converter" for monitoring in the device list page (see "5.3.2 Monitoring Page" for entering operation), as shown in "1" in Figure5-22. Step 2 Select "Setting" button to enter the setting page of the energy storage converter, as shown in "2".
  • Page 106 Energy Storage System ESI215-100K-M 5 APP Operation Illustration User Manual Figure5-22 ON/OFF procedure When setting the power, the setting range of active power is 0~110, and the setting range of reactive power is 0~100. ----End...

  • Page 107: Commissioning

    Energy Storage System ESI215-100K-M User Manual 6 Commissioning 6 Commissioning This chapter mainly introduces the system operation of the energy storage system. 6.1 Check Before Running Before operating, check and make sure that there is no damage on the energy storage system or exist other potential hazards.
  • Page 108 Energy Storage System ESI215-100K-M 6 Commissioning User Manual Check item Check result The operating mechanism, switch and other movable components are flexible, reliable and accurate. For the device equipped with temperature display, temperature control, fan, condensation control Normal devices, etc., they should also be checked according to the Abnormal...
  • Page 109 Energy Storage System ESI215-100K-M User Manual 6 Commissioning Check item Check result The cable protection layer should be well wrapped and without obvious damage. The connection of AC output and communication cables should be Normal connected correctly and firmly and reliably, and with no Abnormal...

  • Page 110: Startup

    Energy Storage System ESI215-100K-M 6 Commissioning User Manual 6.2 Startup  Confirm that the AC voltage meets the allowed voltage range of the energy storage system.  Grid-tied operation needs to be allowed by the local power supply department and operate by professional electrician.
  • Page 111 Energy Storage System ESI215-100K-M User Manual 6 Commissioning The MSD should not be assembled by force, please operate it according to Figure6-3. Figure6-3 Installation diagram for MSD plug Step 2 Power on the external power supply, close the external power supply breaker QF1, as shown in Figure6-4.

  • Page 112: Shutdown

    Energy Storage System ESI215-100K-M 6 Commissioning User Manual Check After Startup After starting the energy storage system, check the overall operating condition of the system. Table6-2 Checking list after startup Check item Check result No abnormal status in the system: abnormal noise, overheating, smoke or abnormal odor.

  • Page 113: Procedure For Stopping The System In Case Of A Major Fault

    Energy Storage System ESI215-100K-M User Manual 6 Commissioning Step 4 Disconnect the DC breaker (as ○ 8 shown in Figure2-9). ○ Step 5 Disconnect the external power supply breaker ( as 14 shown in Figure2-9). ----End 6.4 Procedure for Stopping the System in Case of a Major Fault When a major fault occurs, stop the operating of the energy storage system as follows.

  • Page 114: Routine Maintenance

    Energy Storage System ESI215-100K-M 7 Routine Maintenance User Manual 7 Routine Maintenance This chapter mainly introduces the maintenance and safety precautions, cyclical maintenance and maintenance procedures for the energy storage system. 7.1 Maintenance Guide Correct maintenance is the key to keep the energy storage system running in optimum condition and it will ensure a long service life for the energy storage system.

  • Page 115: Preventive Maintenance

    Energy Storage System ESI215-100K-M User Manual 7 Routine Maintenance  When operating, cover the electrical components close to the operation area by insulating cloth.  Inspection is required at the end of maintenance to ensure that the screws of maintained parts have been tightened and without tools left inside the energy storage system.
  • Page 116 Energy Storage System ESI215-100K-M 7 Routine Maintenance User Manual Check item Check method Cycle the metal surface, if so, please maintain it in time. 5. Check whether the insulating wrapping tape of the cable terminals is off, if so, please tie it up in time.
  • Page 117 Energy Storage System ESI215-100K-M User Manual 7 Routine Maintenance Check item Check method Cycle should not exceed the maximum use ambient temperature of the energy storage system. 5. Check whether the key components are normal, such as dehumidifier, liquid cooling unit, etc., you can check whether there is alarm of them on APP.
  • Page 118 Energy Storage System ESI215-100K-M 7 Routine Maintenance User Manual Check item Check method Cycle 3. Check whether the fan and condenser work normally, whether there is any foreign matter blocked at the air outlet, whether there is any abnormal vibration during normal operation.

  • Page 119: Key Components Maintenance

    Energy Storage System ESI215-100K-M User Manual 7 Routine Maintenance  If the energy storage system is installed in a harsh environment with heavy wind and sand or dense dust, please shorten the maintenance cycle and increase the frequency of maintenance.
  • Page 120 Energy Storage System ESI215-100K-M 7 Routine Maintenance User Manual Figure7-2 Remove the filter Step 3 Clean the filter mesh and filter cotton with a soft brush. Step 4 Reinstall the cleaned or new filter mesh and filter cotton back into place in reverse order.
  • Page 121 Energy Storage System ESI215-100K-M User Manual 7 Routine Maintenance Figure7-3 Remove rear louver Step 2 Clean the filter mesh and filter cotton by soft brush or replace them directly. Step 3 Reinstall the filter mesh and filter cotton back to the original position.
  • Page 122 Energy Storage System ESI215-100K-M 7 Routine Maintenance User Manual Step 2 Remove the bottom filter. Figure7-5 Remove the bottom filter Step 3 Clean the filter cotton by soft brush or replace it directly, and check whether there is any stain around the air inlet holes, if so, clean it.

  • Page 123: Coolant Acidity And Alkalinity Test

    Energy Storage System ESI215-100K-M User Manual 7 Routine Maintenance Figure7-7 Dismantle the filter screen Step 3 Clean the filter cotton by soft brush. Step 4 Reinstall the filter screen back to the original position and ensure the installation is firm.

  • Page 124: Dispose For Coolant Leakage

    Energy Storage System ESI215-100K-M 7 Routine Maintenance User Manual port synchronously). In this process, there may be liquid drips or spatter, you can prepare rags or paper for wiping in advance. (The liquid itself is non-toxic, please clean the liquid in time).
  • Page 125 Energy Storage System ESI215-100K-M User Manual 7 Routine Maintenance Figure7-10 Open the door of electric cabin Step 3 Connect the refill port (as shown in Figure7-11) of the liquid cooling unit to the special collection bucket by external liquid drain pipe (as shown in Figure3-3) , and open the liquid refill valve (as shown in Figure7-11).

  • Page 126: Expansion Tank Maintenance Of Liquid Cooling Unit

    Energy Storage System ESI215-100K-M 7 Routine Maintenance User Manual 7.2.4 Expansion Tank Maintenance of Liquid Cooling Unit The maintenance of the expansion tank should be carried out by professionals. If the expansion tank or the liquid cooling unit is damaged due to improper operation, Kehua Company shall not be responsible for any damage caused to the device.

  • Page 127: Spd Replacement

    Energy Storage System ESI215-100K-M User Manual 7 Routine Maintenance Expansion tank Needle valve cover Figure7-14 Expansion tank diagram Step 5 After finishing the maintenance, install the baffle plate back to the liquid cooling unit, paying attention to whether it is firmly installed.

  • Page 128: Input Side Fuse Replacement

    Energy Storage System ESI215-100K-M 7 Routine Maintenance User Manual Figure7-16 Position diagram of SPD Before removing the cables, take photos to record the actual cable connection relationship, so as to facilitate the recovery of cable connection. Step 4 Install the replaced SPD and connect the cables.
  • Page 129 Energy Storage System ESI215-100K-M User Manual 7 Routine Maintenance Figure7-17 Remove the internal cover plate Step 3 Remove the fuse and replace it. Figure7-18 Position diagram of fuse DO NOT operate by excessive force to avoid damaging the fuse base.

  • Page 130: Fan Maintenance

    Energy Storage System ESI215-100K-M 7 Routine Maintenance User Manual Most maintenance operation requires to remove the internal cover plate. Be sure to restore the removed cover plate to original status and ensure that all screws are tightened after maintenance operation is completed.
  • Page 131 Energy Storage System ESI215-100K-M User Manual 7 Routine Maintenance Step 4 Dismantle the screws fastened on the energy storage system, and then pull out the PCS. Figure7-19 Pull out the PCS When pulling out the PCS, avoid squeezing the cables. Place the storage converter carefully and gently.
  • Page 132 Energy Storage System ESI215-100K-M 7 Routine Maintenance User Manual Step 7 Pull out the fan module (as shown in Figure7-22), clean the fan by brush or cleaner or replace the damaged fan. Figure7-22 Pull out fan module When replacing the fan, pay attention to the direction of air blowing.
  • Page 133 Energy Storage System ESI215-100K-M User Manual 7 Routine Maintenance Figure7-23 Remove the rear louvre Step 4 Loosen the fixing screws around the fan, pull out the fan module gently, and loosen the connection plug of the fan. Figure7-24 Fan position diagram Step 5 Clean the fan by a soft brush or dust collector or replace the damaged fan.

  • Page 134: Battery Maintenance

    Energy Storage System ESI215-100K-M 7 Routine Maintenance User Manual ----End 7.2.8 Battery Maintenance Safety Precautions for Battery Maintenance  The battery should be away from fire and all electrical equipment that is easy to cause sparks, so as not to cause explosion.
  • Page 135 Energy Storage System ESI215-100K-M User Manual 7 Routine Maintenance Check item Check method Cycle 1. Check the battery case and cover for bulging, liquid leakage and damage. 2. Check the connecting cables, terminals, etc. for corrosion and rust, and the fastening bolts and nuts for looseness.
  • Page 136 Energy Storage System ESI215-100K-M 7 Routine Maintenance User Manual  The replaced battery must be with the same capacity, type and manufacturer of the energy storage system. The replaced old batteries should not be discarded at will, they should be disposed by ...

  • Page 137: Troubleshooting

    Energy Storage System ESI215-100K-M User Manual 8 Troubleshooting 8 Troubleshooting This chapter mainly introduces how to deal with the common fault. 8.1 Deal with Common Fault Once fault occurs, the indicator on the panel will show in red, the current fault will be showed on the APP, and at the same time, the energy storage system may halt.
  • Page 138 Energy Storage System ESI215-100K-M 8 Troubleshooting User Manual Fault info Solution requirement of the energy storage system, When the grid voltage restores normal, the energy storage system will recover normal operation. If the fault still exists, please contact the local dealer or service centre.
  • Page 139 Energy Storage System ESI215-100K-M User Manual 8 Troubleshooting Fault info Solution centre. Shut down and power off the energy storage system according Insulation impedance to 6.3 Shutdown, check whether the environment around the abnormal converter is humid; check whether the grounding point inside the converter is loose.

  • Page 140: Fault Of Battery

    Energy Storage System ESI215-100K-M 8 Troubleshooting User Manual Fault info Solution the local dealer or service centre. Shut down and power off the energy storage system according to 6.3 Shutdown, check whether the connection of AC output is short-circuited, whether the overcurrent value is set...
  • Page 141 Energy Storage System ESI215-100K-M User Manual 8 Troubleshooting Fault info Solution Cell temperature sampling fault Temperature rise alarm PCS communication fault Large difference between total cluster voltage and sampling value Cell under-voltage alarm Cell over-voltage alarm Total voltage under-voltage alarm It is a regular alarm during use.

  • Page 142: Fault Of Liquid Cooling Unit

    Energy Storage System ESI215-100K-M 8 Troubleshooting User Manual Fault info Solution of cell local distributor or service centre. Low discharge temperature of cell Large temperature difference of cell 8.1.3 Fault of Liquid Cooling Unit Table8-3 Fault list of liquid cooling unit...
  • Page 143 Energy Storage System ESI215-100K-M User Manual 8 Troubleshooting Fault info Solution input over-voltage Disconnect the AC breaker and DC breaker as well as the alarm external power supply breaker, and then check whether the external power supply is normal; if normal, restart the energy storage system.
  • Page 144 Energy Storage System ESI215-100K-M 8 Troubleshooting User Manual Fault info Solution sensor fault Outlet water temperature sensor fault Exhausting air temperature sensor fault Suction temperature sensor fault High pressure sensor fault Low pressure sensor fault External ambient temperature sensor fault...

  • Page 145: Other Faults

    Energy Storage System ESI215-100K-M User Manual 8 Troubleshooting 8.1.4 Other Faults Table8-4 Other system fault list Fault info Solution Check whether the connection of communication cables is in good condition and whether the dehumidifier is normally powered on. The communication quality can be improved by Dehumidifier adding magnetic rings.
  • Page 146 Energy Storage System ESI215-100K-M 8 Troubleshooting User Manual 2. Distributor/ dealer of the energy storage system (if has). 3. The date of first startup. 4. Problem description. 5. Your detail contact information.

  • Page 147: Dismantle, Discard

    Energy Storage System ESI215-100K-M User Manual 9 Dismantle, Discard 9 Dismantle, Discard This chapter introduces the dispose way for dismantling, discarding the energy storage system. 9.1 Dismantle the Energy Storage System After the connection between the energy storage system and grid, load, and battery pack is completely disconnected, it is necessary to wait for 10min at least to make the inner capacitor discharge completely, and then the energy storage system can be dismantled.
  • Page 148 Energy Storage System ESI215-100K-M 9 Dismantle, Discard User Manual The battery, module and other components inside the energy storage system may pollute the environment, please do corresponding dispose on the basis of related provision.

  • Page 149: Technical Specifications

    Energy Storage System ESI215-100K-M User Manual A Technical Specifications Technical Specifications Model ESI215-100K-M Index Battery side Cell grouping mode 1P240S 215 (@25±3℃，BOL，0.5P，100%DOD) Battery capacity (kWh) Rated voltage of battery cluster (V) Operating voltage of battery 672~864 cluster (V) Charge / discharge rate 0.5P...
  • Page 150 Energy Storage System ESI215-100K-M A Technical Specifications User Manual Model ESI215-100K-M Index External power supply 230±15% Input voltage range (Vac) Max. input current (A) Inner socket 230±15% Voltage range (Vac) Max. output current (A) Grid-tied parameters Rated grid voltage (V)
  • Page 151 Energy Storage System ESI215-100K-M User Manual A Technical Specifications Model ESI215-100K-M Index Allowable environment -35~55 (device running temperature, for storage temperature, temperature (℃) please see 3.2 ) Allowable relative humidity 0%~95% (RH) 1000×1300×2250 (without lifting ring) Size (W×D×H) (mm) 1000×1300×2340 (with lifting ring) Weight (t) <2.5...

  • Page 152: B Quality Assurance

    Energy Storage System ESI215-100K-M B Quality Assurance User Manual Quality Assurance If the device fault in guarantee period, Kehua Company will maintenance it free or replace new product. Evidence In guarantee period, user needs to show the purchase invoice of the product, and the trademark on the product must be clearly visible, or Kehua Company have right to refuse the quality assurance.
  • Page 153 Energy Storage System ESI215-100K-M User Manual B Quality Assurance If the fault is caused by above situation and user requires to maintain it, we can provide paid maintenance service after our service organization decided. To improve users' satisfaction continuously, our product and User Manual is upgrading. If the User Manual has difference with product, it may be caused by the version difference, please take the actual product as standard.

  • Page 154: Acronyms And Abbreviations

    Energy Storage System ESI215-100K-M C Acronyms and Abbreviations User Manual Acronyms and Abbreviations Alternating Current Direct Current Digital Signal Processor Emergency Power Off Maximum Power Point Tracking MPPT Photovoltaic Recommend Standard232 RS232...
  • Page 155 Energy Storage System ESI215-100K-M User Manual C Acronyms and Abbreviations Recommend Standard485 RS485 Universal Serial Bus...
  • Page 156 4402-00001 001...

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