Goodwe GW9100K-MVS User Manual
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Goodwe GW9100K-MVS User Manual

Goodwe GW9100K-MVS User Manual

Smart transformer station
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GW9100K-MVS Smart Transformer Station
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  • Page 1 GW9100K-MVS Smart Transformer Station User Manual...

  • Page 2: Table Of Contents

    User Manual V1.0-2024-6-5 Content 1. About This Document ..............5 1.1. Intended Audience ..............5 1.2. Manual Description ..............5 1.3. Safety Precautions ..............7 1.3.1. General Safety Rules ..............7 1.3.2. Electrical Safety ................8 1.3.3. Mechanical Safety ................9 1.3.4.
  • Page 3 User Manual V1.0-2024-6-5 4.2.2. Insulation Test ................. 44 4.2.3. Device testing inside the MVS ............. 46 4.2.4. Hot Commission Readiness Setting ........... 49 4.3. Hot Commissioning ..............50 4.3.1. Pre-hot Commissioning Inspection Program ......51 4.3.2. UPS Circuit Power-On ..............54 4.3.3.
  • Page 4 User Manual V1.0-2024-6-5 6. Technical Parameters ............... 85 7. Appendix ..................87...

  • Page 5: About This Document

    User Manual V1.0-2024-6-5 1. About This Document 1.1. Intended Audience This manual is intended for maintenance personnel. It's applicable to personnel who transport, install and operate this product. They should at least meet the following requirements:  Have certain expertise in electronics, electrical wiring and machinery, be familiar with electrical and mechanical schematics diagrams.
  • Page 6 User Manual V1.0-2024-6-5 The symbols that may be found in this manual are defined as follows: DANGER Indicates a high-level hazard that, if not avoided, will result in death or serious injury. WARNING Indicates a medium-level hazard that, if not avoided, could result in death or serious injury.

  • Page 7: Safety Precautions

    User Manual V1.0-2024-6-5 1.3. Safety Precautions The safety instructions in this manual must be strictly followed at all times. In order to avoid possible casualties and property losses during installation or operation, and to extend the service life of the MVS, please be sure to read all safety instructions.

  • Page 8: Electrical Safety

    User Manual V1.0-2024-6-5 NOTICE  Place eye-catching warning signs at the front and rear of the MVS and at the switch to avoid accidents caused by wrong closing.  Set up warning signs or safety tapes near the field operation area. ...

  • Page 9: Mechanical Safety

    If you want to perform arc welding, cutting and other operations on the equipment, or install other equipment on the top of the equipment, please contact GoodWe first. Prohibit the use of tools with scars, expiration dates, and inspection failures, and ensure that the tools are not overloaded.

  • Page 10: Environment Requirement

    User Manual V1.0-2024-6-5 components and cables of the equipment, and the generated metal chips entering the equipment can cause circuit board short circuits. For handling heavy objects, please comply with relevant safety regulations and work safely after training. 1.3.4. Environment Requirement ...

  • Page 11: Storage Requirement

    User Manual V1.0-2024-6-5  For road transport, a road survey must be conducted in advance to identify obstacles on the route to ensure that vehicles can pass through the route; for water transport, it is necessary to ensure that the route meet the full load navigation of the ships.

  • Page 12: Product Introduction

    User Manual V1.0-2024-6-5 2. Product Introduction NOTICE The figures displayed in this manual are for reference only, please refer to the actual product for details. 2.1. Product Overview 2.1.1. Function A Medium Voltage Substation (MVS) converts low-voltage (LV) AC power generated by solar inverters into medium-voltage (MV) AC power and feeds it into a power grid.

  • Page 13: Appearance

    User Manual V1.0-2024-6-5 2.1.2. Appearance Figure 2-2 Appearance Figure 2-3 Component 1 LV(Low voltage) room 1.1 LV Cabinet 2 Transformer room 2.1 Transformer 3 MV(Medium voltage) room 3.1 Ring main unit (RMU) 4.1 Auxiliary transformer 4 Power distribution room 4.2 UPS...

  • Page 14: Dimensions

    User Manual V1.0-2024-6-5 2.1.3. Dimensions Figure 2-4 Container dimensions...

  • Page 15: Nameplate

    User Manual V1.0-2024-6-5 2.1.4. Nameplate Figure 2-5 Nameplate...

  • Page 16: Components Introduction

    User Manual V1.0-2024-6-5 Label Label Name Explanation The equipment operates at high voltage. Only qualified and trained electrical Electric shock technicians are allowed to install and warning operate the equipment. Indicates the position for connecting the Grounding protecting earthing (PE) cable. The equipment is high.
  • Page 17 User Manual V1.0-2024-6-5 LV Cabinet Interior: Figure 2-7 LV Room Structure 1. Air circuit breaker 2. Molded case circuit 3. Wiring area breaker...

  • Page 18: Transformer Room

    User Manual V1.0-2024-6-5 2.2.2. Transformer Room Figure 2-8 Structural layout of transformer room 1 Moisture absorber 2 Oil level gauge 3 Off-load tap changer 4 Medium voltage bushing 5 Oil temperature gauge 6 Low voltage bushing 7 Gas relay 8 Oil drain valve 9 Pressure release valve 10 secondary control transmit cabinet When a fault occurs inside the transformer, a significant amount of gas will be...

  • Page 19: Mv Room

    User Manual V1.0-2024-6-5 2.2.3. MV Room Figure 2-9 MV Room Layout...
  • Page 20 User Manual V1.0-2024-6-5 2.2.3.1. DAQO 24, 40.5kV Ring Main Unit Figure 2-10 Ring main unit DQS-40.5 CVC appearance 1 Earthing switch 2 Load switch 3 Three position operating hole operating hole disconnector 4 Circuit breaker 5 densimeter 6 Live display operation buttom Figure 2-11 Ring main unit DQS-24 DVC appearance 1 Earthing switch...
  • Page 21 User Manual V1.0-2024-6-5 Figure 2-12 Ring main unit DQS-40.5 DVC appearance 1 Earthing switch 2 Load switch 3 Three position operating hole operating hole disconnector 4 Circuit breaker 5 Operation handle 6 Earth bar operation buttom 2.2.3.2. ABB 24, 40.5kV Ring Main Unit Figure 2-13 Ring main unit SAFE 12/24 CCV appearance 1 Load break switch 2 Earthing switch...
  • Page 22 User Manual V1.0-2024-6-5 Figure 2-14 Ring main unit SAFE 40.5 CCV appearance 1 Load break switch 2 Earthing switch 3 Three position disconnector 4 Push bottons close 5 Push bottons open 6 densimeter...
  • Page 23 User Manual V1.0-2024-6-5 2.2.3.4. Siemens 24, 36kV Ring main unit Figure 2-15 Ring main unit 24kV RRL appearance 1 Load break switch 2 Earthing switch 3 Three position disconnector 4 Push bottons close 5 Push bottons open Figure 2-16 Ring main unit 36kV RRL appearance 1 Load break switch 2 Earthing switch 3 Three position...

  • Page 24: Power Distribution Room

    User Manual V1.0-2024-6-5 2.2.4. Power distribution room Figure 2-17 Power distribution cabinet front view layout Figure...
  • Page 25 User Manual V1.0-2024-6-5 Figure 2-18 Smart Communication Unit appearance Index: See the Smart Communication Unit (SCU3000A) user manual for details. Figure 2-19 QR code for SCU3000A User Manual...

  • Page 26: Installation

    User Manual V1.0-2024-6-5 3. Installation Please check the Installation Manual and strictly follow the steps in the manual for installation. 4. Hot and Cold Commissioning 4.1. Introduction 4.1.1.Introduction to main equipment for cold commissioning Figure 4-1 Cabinets...

  • Page 27: Mvs Interlocking And Key Diagram

    User Manual V1.0-2024-6-5 Name Type Location Function Inside the MV Switchgear Incoming cable cabinet Room Inside the MV Switchgear Vacuum circuit breaker cabinet Room Inside the MV Switchgear Outlet cable cabinet Room Switchgear LV Room Connecting to inverters Switchgear LV Room Connecting to inverters Power Near the ring...

  • Page 28: Interlocking Type Between Mvss

    User Manual V1.0-2024-6-5 The key locations of different types of RMU (ring main unit) are shown in the following figure: 4.1.3. Interlocking Type between MVSs NOTICE  The G1 cabinet of each MVS points to the grid side. The G1 and G3 cabinets is not allowed to be swapped, otherwise it will cause interlocking disorder between MVSs.
  • Page 29 User Manual V1.0-2024-6-5 Figure 4-3 The normal interlocking of G1 cabinet with load switch If the earthing switch in upstream G3 is in the open position, the key cannot be pulled out from the key interlocking device. The G1 earthing switch on the downstream side can be closed only when the earthing switch on the upstream G3 cabinet is closed.
  • Page 30 User Manual V1.0-2024-6-5 Figure 4-5 CVC type ring main unit normal interlocking (2) The introduction to the normal key interlocking device for G1 cabinet without load switch in DCV/DVC type cabinet is as follows: As shown in Figure, one of the interlocking devices is installed near the operating shaft of the earthing switch in the upstream G3, and the other key is on the cable room door in the downstream G1.
  • Page 31 User Manual V1.0-2024-6-5 Figure 4-7 The normal interlocking of the DVC ring main unit Figure 4-8 The normal interlocking of the DCV ring main unit 4.1.3.2. (Optional requirement: G1 cabinet with load switch) A3 Interlocking The purpose of the A3 key interlocking device is described in the following example: As shown in the figure, one of the interlocking devices is installed near the operating shaft of the load switch in the upstream G3, and the other...
  • Page 32 User Manual V1.0-2024-6-5 Figure 4-9 A3 Interlocking If the load switch in upstream G3 is in a closed position, the key cannot be pulled out from the key interlock. The downstream G1 earthing switch can be closed only when the load switch on the upstream G3 cabinet is open. First, the load switch must be placed in an open position.
  • Page 33 User Manual V1.0-2024-6-5 Figure 4-11 The A3 interlocking of the CVC ring main unit 4.1.3.3. (Optional requirements: G1 cabinet with load switch) P1 Interlocking The purpose of the P1 key interlocking device is described in the following example: The purpose of P1 interlocking is to ensure absolutely safe operation of the upstream G3 and downstream G1 by avoiding the closing of the upstream or downstream earthing switch since there is power supply both upstream and downstream to.
  • Page 34 User Manual V1.0-2024-6-5 If the load switch in the upstream G3 is in a closed position, the key cannot be pulled out or rotated in the key interlock device. The downstream earthing switch can be closed only when the load switch in the upstream G3 is opened.

  • Page 35: Cold Commissioning

    User Manual V1.0-2024-6-5 4.2. Cold Commissioning The specific steps for cold commissioning after the completion of installation are as following: 1) Overall inspection; 2) Insulation test; 3) Testing of components inside the MVS; 4) Hot commissioning preparation status setting. 4.2.1. Overall Inspection before Cold Commissioning 4.2.1.1.
  • Page 36 User Manual V1.0-2024-6-5 4.2.1.2. Check the Interlocking function Introduction to the Key Status inside the MVS Yes/N Interlocking device Switch status Key status Note name can be pulled Opened out after N.A. unlocked G1：Earthing switch can not be Closed N.A. pulled out can be pulled Opened...
  • Page 37 User Manual V1.0-2024-6-5 K8,K9,K10,K11 can not be not inserted pulled out can be pulled Door closed out after Transformer door K8 unlocked can not be Door opened pulled out can be pulled Door closed out after Transformer door K9 unlocked can not be Door opened pulled out...
  • Page 38 User Manual V1.0-2024-6-5 Interlocking between 1QF & 2QF and G2 three position Steps Yes/No Note disconnector There is a key chain K14&K4 between the G2 three position disconnector key K4 and the LV key container key K14. When the MVS leaving the factory, K4 (key chain) is inserted next to the G2 three position disconnector.
  • Page 39 User Manual V1.0-2024-6-5 Normal interlocking between the MVS 1 and MVS 2 Steps Yes/No Note (CCV/CVC/RRL) MVS 1 is the upstream, and MVS 2 is the downstream. Open the G3 load switch of MVS1, close the G3 earthing switch of MVS 1, and take out the key K5 of the earthing switch of MVS 1.
  • Page 40 User Manual V1.0-2024-6-5 4.2.1.3. The Inspection of LV Cabinet Step Project Status Confirmed Yes/No Note The equipment is in good condition, with no rust or paint peeling. (If any paint peeled, repaint it). Labels on the device are clearly visible. Damaged labels must be replaced prompt.
  • Page 41 User Manual V1.0-2024-6-5 4.2.1.4. The Inspection of the Transformer Step Project Status Confirmed Yes/No Note There are no cracks, scratches or dents on the appearance of the transformer. The connection cover between the Appearance transformer and the LV room is free of inspection damage, rust, or paint peeling, and is well sealed.
  • Page 42 User Manual V1.0-2024-6-5 There is no appearance damage. The pressure Remove the pressure relief valve cover and relief valve check that it has not popped up. There is no appearance damage or no gas inside the gas relay. If there is a small amount Gas relay of gas, the air can be exhausted through the inspection...
  • Page 43 User Manual V1.0-2024-6-5 4.2.1.6. The Inspection of the Power Distribution Room Step Project Status Confirmed Yes/No Note All components in the power distribution room are intact, buttons and keys are clearly written, and there are no loose installations. Overall inspection All wiring is tight and undamaged.

  • Page 44: Insulation Test

    User Manual V1.0-2024-6-5 4.2.2. Insulation Test NOTICE  Before installing and sealing the outgoing cable, insulation test should be conducted on the LV side. If the cable wiring is completed, all MCCBs connected to the inverters need to be turned off. ...
  • Page 45 User Manual V1.0-2024-6-5 Figure 4-16 Test diagram of low-voltage cabinet D2 Steps Insulation test for LV cabinet D2 Yes/No Note Adjust the switch according to the test diagram of LV cabinet D2. Open the load switch of G1 and G3 cabinets, close the earthing switch, open the circuit breaker of G2 cabinet, open the three position disconnector and close the earthing switch.

  • Page 46: Device Testing Inside The Mvs

    User Manual V1.0-2024-6-5 4.2.3. Device testing inside the MVS The test of the components inside the MVS needs to be powered by an external power supply. There are two types of external power supply:  Three-phase generator (three-phase four-wire) with an output voltage of 380V. ...
  • Page 47 User Manual V1.0-2024-6-5 Power on the SCU3000A and connect it to the computer, establishing communication between the inverter and the MVS. Open the website to display the commissioning interface and check that all signals are normal; If it is abnormal, please record the phenomenon and contact relevant personnel.
  • Page 48 User Manual V1.0-2024-6-5 Power on the SCU3000A and connect it to the computer. Open the website to display the commissioning interface and check that all signals are normal; If it is abnormal, please record the phenomenon and contact relevant personnel. Please note that the door of the distribution room should be open, so a "door open"...

  • Page 49: Hot Commission Readiness Setting

    User Manual V1.0-2024-6-5 4.2.4. Hot Commission Readiness Setting NOTICE It is recommended that cold and hot commission should be performed within a one month interval, and follow the steps below for the commissioning; Otherwise, all MCCBs, MCBs, FUSEs in the LV cabinet and P room will be disconnected. Step Operation Yes/No...

  • Page 50: Hot Commissioning

    User Manual V1.0-2024-6-5 4.3. Hot Commissioning NOTICE  Special protective equipment must be used during the operation, such as wearing protective clothing, insulated boots, wearing face protection helmets, insulated gloves, etc.  It is necessary to set up the parameters correctly by professional personnel for the first running of the equipment.

  • Page 51: Pre-Hot Commissioning Inspection Program

    User Manual V1.0-2024-6-5 4.3.1. Pre-hot Commissioning Inspection Program The steps for hot commissioning are as shown in the Figure table. Steps Item Yes/No Note 4.3.1 Pre-hot commissioning inspection-check the ring main unit, transformer, and boosting station 4.3.2 UPS circuit power-on——power on the protection equipment of the MVS 4.3.3 RMU power-on——Ring main unit 4.3.4 Transformer power-on——Impulse once...
  • Page 52 User Manual V1.0-2024-6-5 4.3.1.1. Inspection of the Ring Main Unit (DVC/DCV/DV) Steps Operation Yes/No Note Check that both transformer doors are closed and the Transformer door keys are placed in the key container in the MV room. Check that the G2 earthing switch is closed, the three MVS 3 (DV) position disconnector is open, and the vacuum circuit breaker is open.
  • Page 53 User Manual V1.0-2024-6-5 4.3.1.2. Inspection of the Ring Main Unit (CCV/CVC/CV) Steps Operation Yes/No Note Check that both transformer doors are closed and the door Transformer keys are placed in the key container of the MV room. Check that the G2 earthing switch is closed, the three position disconnector is open, and the vacuum circuit breaker is open.

  • Page 54: Ups Circuit Power-On

    User Manual V1.0-2024-6-5 4.3.2. UPS Circuit Power-On Turn on the UPS, close all switches downstream of the UPS, and ensure that the following devices are operating normally. Steps Operation Phenomenon Yes/No Note Close the relevant MCB of The device display shows ACB controller 1 values Close the relevant MCB of...

  • Page 55: Rmu Power-On

    User Manual V1.0-2024-6-5 4.3.3. RMU Power-On 4.3.3.1. Power On the Ring Main Unit (CCV/CVC/CV) Steps Operation Yes/No Note For G2, close the three position disconnector after inserting the key and unlocking it. MVS 3(CV) For G1, open the earthing switch after inserting the key and unlocking it, and close the load switch.
  • Page 56 User Manual V1.0-2024-6-5 CVC+CV 4.3.3.2. Power On the Ring Main Unit (DVC/DCV/DV) For G2, close the after inserting the key and three position disconnector unlocking it. Steps Operation Yes/No Note For G2, close the three position disconnector after MVS 3(DV) inserting the key and unlocking it.
  • Page 57 User Manual V1.0-2024-6-5 The status of RMU after power on is shown as below: DVC+DV DCV+DV After the RMU is powered on, check the following items: Steps Operation Yes/No Note The display of G1 cabinet flash. MVS 1 The display of G2 cabinet is powered off. The display of G3 cabinet flash.

  • Page 58: Power On The Transformer

    User Manual V1.0-2024-6-5 4.3.4. Power On the Transformer Steps Operation Yes/No Note Store energy to the vacuum circuit breaker in G2 manually or electrically. Close the vacuum circuit breaker in G2 MVS 1 Check if RMU is running Check if the transformer is running Store energy to the vacuum circuit breaker in G2 manually or electrically.

  • Page 59: Power On The Auxiliary Circuit

    User Manual V1.0-2024-6-5 4.3.5. Power on the Auxiliary Circuit Close all micro breaker in the P cabinet to ensure that the following equipment is operating properly. Steps Operation Yes/No Note Heat exchanger Temperature and humidity controller Air-conditioning P1 socket P2 socket 4.3.6.

  • Page 60: Running Without Load

    User Manual V1.0-2024-6-5 4.3.7. Running without Load Steps Operation Yes/No Note When the above steps are completed, close all doors Keep the MVS running without load for 24 hours (recommended 24 hours, the specific time is subject to the project) After no-load running without abnormality or failure, open the container door and proceed to the next step.

  • Page 61: Routine Maintenance

    User Manual V1.0-2024-6-5 5. Routine maintenance The components inside the MVS may age and wear out due to the influence of ambient temperature, humidity, dust, vibration, etc., leading to potential failures. Therefore, it is necessary to perform daily and regular maintenance to ensure normal operation and to extend service life.

  • Page 62: Power Off And Shut Down For Maintenance

    User Manual V1.0-2024-6-5 NOTICE  Please maintain the equipment only when you are familiar with the contents of this manual and have appropriate tools and testing devices.  During the maintenance process, please try to prevent irrelevant personnel from entering, and temporary warning signs or fences must be erected for isolation.
  • Page 63 User Manual V1.0-2024-6-5 Steps Operation Yes/No Note Remote control opening LV cabinet 1QF air circuit breaker Remote control opening LV cabinet 2QF air circuit breaker Remote control opening ring main unit G2 cabinet vacuum circuit breaker. Manually open the three position disconnector of the ring main unit G2 on site and confirm that the live display is off.

  • Page 64: Ring Main Unit

    User Manual V1.0-2024-6-5 5.2.2. Ring Main Unit This section takes the second MVS (MVS 2) as an example to introduce the power off and maintenance procedures of the ring main unit. The operation steps of DCV and CVC are the same. The switch status before maintenance: Figure 5-3 The switch status before maintenance: Steps...

  • Page 65: Cables Between Ring Main Units

    User Manual V1.0-2024-6-5 Figure 5-4 the switch status after maintenance 5.2.3. Cables between Ring Main Units This section takes the second MVS (MVS 2) as an example, and take the MVS 1 and MVS 2 as an example to introduce the power off and maintenance procedures between MVSs.
  • Page 66 User Manual V1.0-2024-6-5 The upper lever G3 cabinet: open the load switch, observe that the live display of G3 cabinet is not flashing, and close the earthing switch. Install prohibited operation signs. This lever G1 cabinet: open the load switch, observe that the live display of G1 cabinet is not flashing, and close the earthing switch.
  • Page 67 User Manual V1.0-2024-6-5 Steps Operation Yes/No Note Remote control the opening of this level LV cabinet 1QF air circuit breaker. Remote control the opening of this level LV cabinet 2QF air circuit breaker. G2 cabinet of this level: opening vacuum circuit breaker, opening three position disconnector, closing earthing switch.

  • Page 68: Routine Maintenance

    User Manual V1.0-2024-6-5 5.3. Routine maintenance Routine inspection and maintenance must comply with the relevant regulations of the power company. Inspection, maintenance and repairs can only be performed by trained personnel who are familiar with the equipment. Personnel must be certified and comply with safety regulations issued by the power company.
  • Page 69 User Manual V1.0-2024-6-5 During operation, check whether the sound of the transformer is normal. Check the transformer oil level indicator. If the oil level is low, please power off the MVS and fill in oil in time Check whether there is oil leakage around the pressure relief valve.

  • Page 70: Common Parts Replacement

    User Manual V1.0-2024-6-5 5.4. Common parts replacement 5.4.1. Replacement of Arrester NOTICE Do not replace the arrester on rainy days. Replacement steps (see the arrester user manual for details): 1. The arrester is located in the cable room of the circuit breaker cabinet of the ring main unit.

  • Page 71: Replacement Of Air Circuit Breakers

    User Manual V1.0-2024-6-5 5.4.2. Replacement of Air Circuit Breakers NOTICE Make sure the equipment is powered off and the air circuit breaker is in the "OFF" position Steps: 1) Remove the copper bar at the back of the ACB. 2) Remove the signal cable and grounding cable of the air circuit breaker and mark them.

  • Page 72: Replacement Of Molded Case Circuit Breakers

    User Manual V1.0-2024-6-5 5.4.3. Replacement of Molded Case Circuit Breakers NOTICE  If need replacement, please contact Goodwe after-sales service or local Goodwe staff according to the spare parts list.  If the short-circuit fault current ≤ ICU (ultimate short-circuit breaking capacity), after one short-circuit fault occurs, the circuit breaker needs to be replaced.

  • Page 73: Oil Surface Temperature Gauge Replacement

    User Manual V1.0-2024-6-5 3) Remove the fixing bolts of the molded case circuit breaker and remove the molded case circuit breaker. 4) Replace with a new molded case circuit breaker and fix the circuit breaker on the support plate and tighten it. 5) Restore the removed copper bars and cables to their original state.
  • Page 74 User Manual V1.0-2024-6-5 matching screws. Install the fixing screws of oil surface temperature gauge by following these steps (lightly shake to ensure no looseness): Remove the cover of the oil surface temperature gauge. Lift the bottom cover plate. Insert the wires through the bottom opening. Connect the wires according to the recorded wiring configuration.

  • Page 75: Replacement Of Micro Circuit Breakers

    User Manual V1.0-2024-6-5 5.4.5. Replacement of Micro Circuit Breakers NOTICE Ensure that the equipment is powered off and place the micro circuit breaker in the "OFF" position Steps: 1) Remove the cables connecting the upper and lower ends of the micro circuit breaker.

  • Page 76: Replacement Of Lighting Lamps

    User Manual V1.0-2024-6-5 5.4.6. Replacement of lighting lamps Steps: 1) Remove the cable from the power supply terminal of the lighting lamp and mark it (unscrew the cable terminal cover and press the plastic part as shown in figure with your hand to pull out the cable). 2) Remove the lamp fixing screws (M6 external hexagonal bolts) and remove the lamp.

  • Page 77: Replacement Of Heater

    User Manual V1.0-2024-6-5 2) Insert the new smoke sensor into the base and rotate it clockwise to the locking position. 5.4.8. Replacement of heater The heating plate is located under the cable room of the LV cabinet. Steps: 1) Remove the cables on the heating plate and mark them 2) Remove the fixing screws of the heating plate (M6 and M4 screws) 3) Replace with a new heating plate and secure it 4) Restore the heating plate cable to its original status.

  • Page 78: Replacement Of Measuring And Controlling Device

    User Manual V1.0-2024-6-5 5.4.9. Replacement of Measuring and controlling Device NOTICE 1. Please ensure that the equipment is powered off before replacing the measuring and controlling device. 2. Before replacing the measuring and controlling device, please ensure that the secondary side of the current transformer cannot be open circuited.

  • Page 79: Ups Replacement

    User Manual V1.0-2024-6-5 3) Remove the screws that fix the device, and remove the device (M6 external hexagonal bolts). 4) Replace with a device and fix it in its original position. 5) Restore the cables on the back of the device to its original status. 5.4.10.

  • Page 80: Replacement Of The Heat Exchanger Rain Shield

    User Manual V1.0-2024-6-5 2) Remove the UPS fixing bracket and take out the UPS (M8 semi-round head square neck bolt) 3) Replace with a new UPS and secure it. 4) Restore the cables and plugs on the back of the UPS to the original status. 5.4.11.

  • Page 81: Replacement Of The Air Conditioner

    User Manual V1.0-2024-6-5 5.4.12. Replacement of the air conditioner Steps: 1) Open the door of the power distribution room, remove the cables on the air conditioner, and mark them. 2) Remove a circle of fixing screws around the air conditioner and remove the air conditioner (M5 hexagon socket bolts) 3) Replace with a new air conditioner and fix it.

  • Page 82: Replacement Of The Moisture Absorber

    User Manual V1.0-2024-6-5 5.4.13. Replacement of the Moisture Absorber Steps: 1) Remove the Moisture Absorber (M12 external hex bolts). 2) Tear off the adhesive paper on the breather port.
  • Page 83 User Manual V1.0-2024-6-5 3) Place a sealing gasket on the breather port. 4) Install the respirator to the breathing tube port, tighten the bolts diagonally, and install the sealing gasket as shown in the following figure. 5) Remove the oil cup and fill the cup with oil level between the two red lines. 6) Install the oil cup.

  • Page 84: Paint Repairing

    User Manual V1.0-2024-6-5 5.5. Paint repairing Degree of Tools and paint Steps materials damage 1. Use fine sandpaper to polish the damaged areas and remove stains or rust. Shallow 2. Moisten the cotton cloth with alchol, wipe the scratches(no polished area or the area to be repaired to remove exposed surface dirt and dust, and then wipe dry with clean Small area paint...

  • Page 85: Technical Parameters

    User Manual V1.0-2024-6-5 6. Technical Parameters Transformer GW9100K-MVS Transformer Type Oil immersed Rated Power (kVA) 9152@40℃ Vector Group Dy11-y11 LV/MV Voltage (kV) 0.8/20~35 Maximum Input Current at Nominal 2*3302 Voltage (A) Frequency (Hz) 50/60 ±2*2.5% Tapping Range ≥99% Peak Efficiency Index...
  • Page 86 User Manual V1.0-2024-6-5 Transformer GW9100K-MVS Standard: RS485, Ethernet Optional: Communication Optical Fiber IEC 60076, IEC 62271-200, IEC 62271- Compliance 202, IEC 61439-1/2, EN50708-1, CE...
  • Page 87 User Manual V1.0-2024-6-5 7. Appendix Protecting Earthing Medium Voltage Station O&M Operations &Maintenance Direct Current Alternating Current Medium Voltage Low Voltage Ring main unit Surge Protection Device Uninterruptible Power Supply Fuse MCCB Molded Case Circuit Breaker Micro Circuit Breaker Air Circuit-Breaker Vacuum Circuit Breaker Power Line Communication Personal Protective Equipment...
  • Page 88 User Manual V1.0-2024-6-5...

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