Table of Contents
Advertisement
Quick Links
Advertisement
Table of Contents
Related Manuals for Xantrex GT100 Series
Summary of Contents for Xantrex GT100 Series
- Page 1 Planning and Installation Manual Xantrex GT100 ™ Grid-Tied Photovoltaic Inverter...
- Page 3 Xantrex GT100 Grid-Tied ™ Photovoltaic Inverter Planning and Installation Manual This manual for use by qualified installers only...
- Page 4 About Xantrex Xantrex Technology Inc. is a world-leading supplier of advanced power electronics and controls with products ranging from small mobile units to utility-scale systems for wind, solar, batteries, fuel cells, microturbines, and backup power applications in both grid-connected and stand-alone systems. Xantrex products include inverters, battery chargers, programmable power supplies, and variable speed drives that convert, supply, control, clean, and distribute electrical power.
- Page 5 About This Manual Purpose The purpose of this Planning and Installation Manual is to provide explanations and procedures for planning and installing the GT100 Grid-Tied Photovoltaic Inverter. Scope The Manual provides safety guidelines, detailed planning and setup information, and procedures for installing the inverter. Audience Anyone who plans to construct or install a system involving the GT100 Grid-Tied Photovoltaic Inverter.
- Page 6 About This Manual Conventions Used The following conventions are used in this guide. WARNING Warnings identify conditions or practices that could result in personal injury or loss of life. CAUTION Cautions identify conditions or practices that could result in damage to the unit or other equipment.
- Page 7 Phase-Shift Loop Photovoltaic UFCU Universal Frontpanel Control Unit Vacuum Fluorescent Display Related Information You can find more information about Xantrex Technology Inc. as well as its products and services at www.xantrex.com. 153379 This manual for use by qualified installers only...
-
Page 9: Important Safety Instructions
Important Safety Instructions SAVE THESE INSTRUCTIONS - DO NOT DISCARD This manual contains important safety instructions for the GT100 Grid-Tied Photovoltaic Inverter that must be followed during installation and maintenance procedures. WARNING: Shock Hazard Read and keep this Planning and Installation Manual for future reference. Before operating and maintaining the GT100, read all instructions, cautionary markings, and all other appropriate sections of this manual. - Page 10 Safety Risks WARNING: Shock hazard Parts of the capacitor charge will still be energized for a maximum of five minutes after being disconnected. Open doors only after the device is disconnected and discharged. Check whether the device is no longer live (DC voltage) including terminals TB3 and TB4. WARNING: Explosion hazard The IGBT module may explode in the event of a major malfunction.
- Page 11 General Safety Precautions 1. When installing the GT100 use only components recommended or sold by Xantrex. Doing otherwise may result in a risk of fire, electric shock, injury to persons, and will void the warranty. 2. Do not attempt to operate the GT100 if it has been dropped, or received more than cosmetic damage during transport or shipping.
- Page 12 Safety Wiring Requirements 1. All wiring methods and materials shall be in accordance with the National Electrical Code ANSI/NFPA 70, as well as all state and local code requirements. • Use copper conductors only with an insulation rating of 90 °C. The optional Fused Combiner (GTFC), if installed, requires the use of copper conductors only with a maximum insulation rating of 75°C.
- Page 13 Safety 7. The equipment grounds on the GT100 are marked with 8. AC overcurrent protection for the utility interconnect (Grid-tie) must be provided by the installers as part of the GT100 installation. CAUTION: Fire Hazard In accordance with the National Electrical Code, ANSI/NFPA 70, connect only to a circuit provided with 400 amperes maximum branch circuit overcurrent protection for model GT100- 208-NG and GT100-208-PG, and only to a circuit provided with 200 amperes maximum branch circuit overcurrent protection for model GT100-480-NG and GT100-480-PG.
- Page 14 Safety WARNING: Shock Hazard Review the system schematic for the installation to verify that all available energy sources are de-energized. DC bus voltage may also be present. Be sure to wait the full five minutes to allow the capacitors to discharge completely The GT100 can be energized from both the AC source and the DC source.
- Page 15 Safety De-Energize/Isolation Procedure The following procedure should be followed to de-energize the GT100 for maintenance. WARNING The terminals of the DC input may be energized if the PV arrays are energized. In addition, allow five minutes for all capacitors within the main Enclosure to discharge after disconnecting the GT100 from AC and DC sources.
-
Page 17: Table Of Contents
Contents Important Safety Instructions - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - vii 1 Introduction Description of the GT100 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–2 Power Conversion System - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–2... - Page 18 Contents 2 Planning Overview of GT100 Installation - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–2 PV Planning - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–3 Environmental Requirements - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–3 Ground Requirements - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–4...
- Page 19 Contents 4 Verification Verification Procedure Summary - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4–2 Visual Inspection of Mechanical Connections - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4–3 Visual Inspection of Electrical Connections - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4–3 Corrective Action - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4–3...
- Page 20 xviii...
- Page 21 Figures Figure 1-1 Main Inverter (Open Enclosure View) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–3 Figure 1-2 GT100 Major Sections - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–4 Figure 1-3...
- Page 23 Tables Table 1-1 DC Terminal Polarity - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–8 Table 1-2 DC Terminal Polarity - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–9 Table 3-1...
- Page 24 xxii...
-
Page 25: Introduction
Introduction Chapter 1, “Introduction” provides information about the features and functions of the GT100 Grid-Tied Photovoltaic Inverter. This manual for use by qualified installers only... -
Page 26: Description Of The Gt100
Introduction Description of the GT100 The GT100 Grid-Tied Photovoltaic Inverter is a utility interactive, three-phase power conversion system for grid-connected photovoltaic arrays with a power rating of 100 kW. Designed to be easy to install and operate, the GT100 automates start-up, shutdown, and fault detection scenarios. -
Page 27: Physical Characteristics
4-line, 80 character VFD display. User Interface A user-friendly, Xantrex GT View Graphic User Interface (GUI) provides a remote interface for operator interrogation of GT100 system status, control, metering/data logging and protective functions within the GT100. The status, control, and logging features are supported by an optional modem via an RS232 connection for remote monitoring. -
Page 28: Figure 1-2 Gt100 Major Sections
Introduction Power Electronics section DC Interface AC Interface Isolation Transformer section section section Figure 1-2 GT100 Major Sections 1–4 153379 This manual for use by qualified installers only... -
Page 29: Ac Interface
Physical Characteristics AC Interface The AC Interface serves as the connection for the utility (see Figure 1-2 to locate the AC Interface). This compartment (section) houses the AC Terminals (TB1-N, -A, -B, and -C), AC Disconnect, AC Contactor, and EMI Filter. Additionally, the Inrush PCB assembly, control power transformer, control fuses, and AC sensing circuitry are also housed in this section. -
Page 30: Auxiliary Control Interface
Communications Circuit The GT100 can be remotely accessed through an RS232 serial port or through an RS485/Modbus connection. Xantrex offers modems that can be connected to the RS232 port for remote monitoring. The remote user has the ability to control and monitor the status of the inverter through this connection. -
Page 31: Power Electronics
Physical Characteristics Power Electronics The GT100 Power Electronics section contains the converter control unit (CCU2) and the power electronics matrix. Also found within the Power Electronics section are the Hall-effect current transducers, and an internal air circulation fan. Converter Control Unit (CCU2) The CCU2 is a Digital Signal Processor (DSP) based control board that performs numerous control and diagnostic functions associated with GT100 operation. -
Page 32: Dc Interface
Introduction DC Interface The DC Interface serves as the connection interface between the PV array and the GT100 (see Figure 1-2 on page 1–4 to locate the DC Interface). This section houses the DC Disconnect Switch and DC contactor. Additionally, the PV Ground Fault Detection circuitry, DC surge arrestor, Solid State Relays, and 48Vdc Power Supply are also housed in this section. -
Page 33: Fused Combiner (Optional)
Physical Characteristics Fused Combiner (Optional) GTFC (PV GND) Figure 1-6 GT Fused Combiner Connectors The fuse blocks of the optional Fused Combiner (GTFC) assembly provide one box style connector per pole (see Table A-7 on page A–5 for acceptable wire range and torque requirements.) The table below describes the DC terminal polarity for each GT100 model with the GTFC installed. -
Page 34: Circuit Diagram
Introduction Circuit Diagram 100KVA FILTER AC CONTACTOR AC GRID 3 PHASE 60HZ POWER MATRIX SINGLE POINT INRUSH LIMIT CCU2 EARTH GROUND PV GND Figure 1-7 GT100 Circuit Diagram 1–10 153379 This manual for use by qualified installers only... -
Page 35: Operator Interface Controls
Operator Interface Controls Operator Interface Controls Operator interface controls are located on the left front door of the main Inverter Enclosure. These controls include an ON/OFF Switch, 4-line VFD display and keypad called the Universal Frontpanel Control Unit (UFCU) used to manipulate and view system operation and status. -
Page 36: On/Off Switch
Introduction On/Off Switch The GT100 incorporates a maintained position switch located on the left front door, under the UFCU. Under normal operating conditions, the switch is in the position. Turning the switch to the position will initiate an immediate controlled shutdown of the GT100 and open both the main AC and DC contactors within the unit. -
Page 37: Ac Disconnect And Dc Disconnect Switch
Operator Interface Controls AC Disconnect and DC Disconnect Switch Both enclosure doors of the GT100 are equipped with lockout hasps for personnel safety. The enclosure doors should not be opened while the GT100 is operating. The switch handles and shafts provide a mechanical door interlock for both the AC and DC Interface sections. -
Page 38: Communication Features And Methods
Introduction Communication Features and Methods The GT100 provides three types of information to the user: • system status and/or fault information, • data logging information, and • oscillography. System status and fault information can be accessed using the Universal Front Panel Control Unit (UFCU), via an RS232 connection to a PC or via an RS485/Modbus connection to a remote monitoring system. -
Page 39: Figure 1-11 Vfd Display And Ufcu Location
Communication Features and Methods Universal Front Panel Control Unit (UFCU) VFD Display Figure 1-11 VFD Display and UFCU Location 153379 1–15 This manual for use by qualified installers only... -
Page 40: Data Logging
Introduction Data Logging The GT100 inverter stores data values and software metrics for debugging. The firmware maintains a data log located in the CCU2 non-volatile memory with a capacity of 25840 32-bit words. The GT100 records the 17 parameters listed below, and logs them into a circular buffer, such that the earliest records shall be overwritten once the capacity of the buffer is exceeded. -
Page 41: Oscillography
Communication Features and Methods Oscillography The GT100 includes a graphic data analysis tool known as Oscillography. The inverter firmware continuously records, in the CCU2 non-volatile memory, 500 samples of data at 1 millisecond intervals. Of these, 250 samples are taken right before a fault occurs and 250 samples are taken after the fault. -
Page 42: Optional Equipment
Communication Modems Xantrex offers modems that can be connected to the RS232 serial port for remote monitoring of the inverter. Please check with Xantrex on available modem types. The remote user has the ability to control and monitor the status of the inverter through this connection. -
Page 43: Planning
Planning Chapter 2, “Planning” provides information to help plan the installation of the GT100 Grid-Tied Photovoltaic Inverter. This manual for use by qualified installers only... -
Page 44: Overview Of Gt100 Installation
Planning Overview of GT100 Installation WARNING: Shock Hazard Installations of this equipment should only be performed by qualified technicians. Installers must meet all local and state code requirements for licensing and training for the installation of Electrical Power Systems with AC and DC voltage to 600 volts. -
Page 45: Pv Planning
PV Planning PV Planning To determine the number of photovoltaic panels that are required for the PV power plant, please use the PV planning tool from the Xantrex website: http://www.xantrex.com/support/gtsizing/index.asp Environmental Requirements The following environmental conditions must be established and maintained to ensure the safe and efficient operation and servicing of the GT100. -
Page 46: Ground Requirements
Planning Ground Requirements This product is intended to be installed as part of a permanently grounded electrical system per the National Electrical Code ANSI/NFPA 70, as well as all state and local code requirements. A copper clad earth grounding electrode must be installed within 1 m (3 ft.) of the GT100 Enclosure to ensure compliance with FCC Part 15, Class A. -
Page 47: Electrical Diagrams
Electrical Diagrams Electrical Diagrams Since installations vary widely, a sample electrical diagram of the GT100 is provided in Figure 2-1. This diagram is to be used for system planning purposes only. For more detailed information, refer to the schematic illustrations in the Operation and Maintenance Manual. -
Page 48: Conduit Entry
Planning Conduit Entry For a typical GT100 installation, the recommended cable entry is from beneath the enclosure. Figure 2-2 below shows the maximum allowable areas (shaded) and locations in which electrical conduits should be located when cable entry is from beneath the enclosure.When routing cable and conduit, some installations may make it necessary to penetrate the enclosure from above ground. -
Page 49: Figure 2-3 Conduit Entries Above Ground, Multiple Views
Conduit Entry Note: The shaded area shown below in Figure 2-3 identifying the DC Interface conduit side entry is valid only when the optional GTFC Fused Combiner assemblies are not installed. AC Interface Conduit Entry 304 × 406 mm (12 × 16 in) AC Interface conduit entry points (shaded) as seen in three different... -
Page 50: Anchoring The Gt100
Planning Anchoring the GT100 The GT100 must be anchored to a level concrete floor or pad in accordance with ASCE 7 -05. The concrete floor or pad, upon which the GT100 is anchored, must be structurally designed to meet any local, state, or national requirements for weight, seismic, and wind sheer if applicable. -
Page 51: Installation
Installation Chapter 3, “Installation” describes the procedures needed to install the GT100 Grid-Tied Photovoltaic Inverter. This section includes unpacking and moving instructions, mounting instructions, and cabling instructions. This manual for use by qualified installers only... -
Page 52: Unloading
Installation Unloading WARNING: Heavy Equipment The GT100 weighs approximately 1361 kg (3000 lb). Attempting to lift the equipment by other than the recommended lifting points may damage the equipment or present a personnel safety hazard and void the warranty. Keep all the doors closed and latched when moving the enclosures. -
Page 53: Removing The Pallet And Moving The Gt100
Unloading Removing the Pallet and Moving the GT100 CAUTION: Equipment Damage To move the GT100, use a forklift that has a sufficient lift capacity and a 66 cm fork span. Use Figure 3-1 to locate the balance point or center of gravity ( symbol). -
Page 54: Moving With A Sling
Installation 66 cm fork span Figure 3-2 Forklift Lifting Locations - Underneath Unit Moving with a Sling To move the GT100 using a sling: 1. Place the lifting slings through the box tubing on the enclosure base at the points specified in Figure 3-3 on page 3–4. 2. -
Page 55: Removing The Air Intake Duct
Unloading Removing the Air Intake Duct The Air Intake Duct may be removed from the rear of the GT100 enclosure if it is necessary to move the inverter through a standard 36-inch door opening and into location. To remove the GT100 Air Intake Duct: 1. -
Page 56: Removing The Rainhood
Installation Removing the Rainhood For indoor installations, the GT100 enclosure has provisions for an exhaust air duct to be attached, by means of a 355 × 200 mm (14 × 8 in) opening at the top of the enclosure. The GT100 enclosure rainhood must be removed in order to access the exhaust opening. -
Page 57: Mounting And Anchoring The Units
Mounting and Anchoring the Units Mounting and Anchoring the Units To mount and anchor the GT100: 1. Predrill the floor or pad to accept ACI 355.2-approved masonry anchors, or ensure it has pre-installed anchoring bolts that will fit the 19 mm (0.75 in) mounting holes. -
Page 58: Opening Or Closing Access Doors
Installation Opening or Closing Access Doors To Open Access Door: 1. Confirm that the AC Disconnect handle is placed in the OFF (Open) position prior to opening the door. 2. Using the key supplied with the unit, turn counterclockwise to unlock. 3. -
Page 59: Wiring - General
Wiring - General Wiring - General All wiring methods and materials shall be in accordance with the National Electrical Code ANSI/NFPA 70, as well as all state and local code requirements.. When sizing conductors and conduits interfacing to the GT100, both shall be in accordance with the National Electrical Code ANSI/NFPA 70, as well as all state and local code requirements.. -
Page 60: Overcurrent Protection
Installation Overcurrent Protection Unless provided as part of the Xantrex supplied equipment; the AC overcurrent protection for the Utility Interconnect (Grid-tie) must be provided by the installer as part of the GT100 installation. CAUTION: Equipment Damage In accordance with the NEC, ANSI/NFPA 70 (Ninth Edition) the following branch-circuit overcurrent protection must be provided: •... -
Page 61: Grounding
Wiring - General Grounding System Grounding This product is intended to be installed as part of a permanently grounded electrical system per the National Electrical Code ANSI/NFPA 70, as well as all state and local code requirements. A copper clad earth grounding electrode must be installed within 1 m (3 ft.) of the GT100 Enclosure to ensure compliance with FCC Part 15, Class A. -
Page 62: Wiring - Specific
Installation Wiring - Specific This section provides information for connecting the AC and DC conductors and the ground conductors. Table A-5, Table A-6, and Table A-7 on page A–5 show the specifications of the AC and DC wiring. To connect the AC utility to AC Interface: 1. -
Page 63: Figure 3-9 Ac Terminal Connections From The Utility
Wiring - Specific TB1-N Phase terminal TB1-B Phase terminal TB2 Ground Bar TB1-A Phase terminal TB1-C Phase terminal Figure 3-9 AC Terminal Connections from the Utility Figure 3-10 Auxiliary Control Interface Terminal Connections 153379 3–13 This manual for use by qualified installers only... -
Page 64: Pv Array Connections
Installation PV Array Connections To make the connections from the PV Array/combiner to DC Interface: 1. Open the door to the DC Interface. 2. Route the PV Array cables conductors POSitive (PV+) and NEGative (PV-) through the conduit to the DC Interface, entering on the underside. 3. -
Page 65: Remote Communications
The GT100 has the ability to provide remote communications via optional modems for system monitoring or data logging through a personal computer using the Xantrex GT View Graphic User Interface (GUI) software. The GUI software provides a windows-based interface program that accesses, monitors, and controls the features and functions of the unit. - Page 66 3–16...
-
Page 67: Verification
Verification Chapter 4, “Verification” provides a checklist to ensure the installation of the GT100 Grid-Tied Photovoltaic Inverter is correct and complete. This manual for use by qualified installers only... -
Page 68: Verification Procedure Summary
Verification Verification Procedure Summary WARNING: Electrocution Hazard This chapter describes specific steps to ensure the installation of the GT100 Grid-Tied Photovoltaic Inverter is correct and complete. Failure to adhere to these warnings could result in severe shock or possible death. Exercise extreme caution at all times to prevent accidents. -
Page 69: Visual Inspection Of Mechanical Connections
Visual Inspection of Mechanical Connections Visual Inspection of Mechanical Connections To perform a visual inspection of the GT100 mechanical connections: ❐ 1. Ensure that the AC and DC Disconnect Switches, as well as any utility interconnect circuit breakers or main disconnect switches, are opened. ❐... - Page 70 4–4...
- Page 71 Specifications Appendix A provides the environmental and electrical specifications for the GT100 Grid-Tied Photovoltaic Inverter. This manual for use by qualified installers only...
-
Page 72: System Specifications
Specifications System Specifications The GT100 has been designed for photovoltaic power systems, which operate within the following specifications. CAUTION: Equipment Damage Operation of the GT100 in a manner other than specified in this manual may cause damage to the GT100 and other system components and will void the terms of the warranty. Environmental Specifications Table A-1 Environmental Specifications Specification... -
Page 73: Electrical Specifications
System Specifications Electrical Specifications Table A-2 provides the AC and DC specifications for the GT100. Table A-2 Electrical Specifications GT100-480-NG and GT100-208-NG and Specification GT100-480-PG GT100-208-PG Nominal AC Input Voltage 480 Vac 208 Vac (+10% to -12% acceptable range) (423 to 528 Vac) (184 to 228 Vac) Maximum Continuous AC Output Current 121 A 278 A... -
Page 74: Over Voltage, Under Voltage And Frequency Ranges
Specifications Over Voltage, Under Voltage and Frequency Ranges Table A-4 provides the over voltage, under voltage, over-frequency, and under- frequency detection limits for the GT100. These detection limits have been factory tested and deemed to be in compliance with UL 1741 Rev 2005 and IEEE 1547 requirements for utility interaction. -
Page 75: Bolt Sizing And Torque Requirements
System Specifications Bolt Sizing and Torque Requirements Table A-5 provides acceptable bolt sizes, and torque values for AC terminal connections. Table A-5 AC Terminal Bolt Size and Torque Values Max. # of Bolt Terminal Conductors per (Hardware) or Torque Connections Terminal Hole Size Requirements... -
Page 76: Dimensions
Specifications Table A-8 provides acceptable screw sizes, and torque values to be connected to the GT100 Auxiliary Control Interface terminal connections. Table A-8 Auxiliary Control Interface Screw Size and Torque Values Max. # of Screw Aux Control Conductors (Hardware) Torque Connections per Terminal Size... - Page 78 Xantrex Technology Inc. 1 800 670 0707 Tel toll free NA 1 408 987 6030 Tel direct 1 800 994 7828 Fax toll free NA customerservice@xantrex.com www.xantrex.com Printed in USA. 153379...