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manual:pws2-30k:electrical-connection-ex [2020/06/22 05:02] hedy created |
manual:pws2-30k:electrical-connection-ex [2020/09/16 22:16] (current) |
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| It is recommended that the inverter should be grounded locally. For multiple PWS2-30M-EX parallel connection system, the grounding points of all inverters should be connected with each other so as to ensure equal potential connection of grounding wires. | It is recommended that the inverter should be grounded locally. For multiple PWS2-30M-EX parallel connection system, the grounding points of all inverters should be connected with each other so as to ensure equal potential connection of grounding wires. | ||
| </ | </ | ||
| - | Step 1: Use a wire stripper to strip the insulating layer of the grounding wire in a proper length; | + | Step 1: Use a wire stripper to strip the insulating layer of the grounding wire in a proper length; |
| - | Step 2: Penetrate the wire core whose insulating layer is stripped into the conductor crimping area of ring terminal. Press the ring terminal with a hydraulic clamp. | + | Step 2: Penetrate the wire core whose insulating layer is stripped into the conductor crimping area of ring terminal. Press the ring terminal with a hydraulic clamp. |
| Step 3: Cover the terminal on the grounding bolt and screw up the nut. | Step 3: Cover the terminal on the grounding bolt and screw up the nut. | ||
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| ===== DC wiring ===== | ===== DC wiring ===== | ||
| - | Specifications of cable and terminal: | + | Specifications of cable and terminal: |
| - | | + | |
| - | Ring terminal: M8 | + | Ring terminal: M8\\ |
| - | Step 1: Use a multi-meter to measure the voltage of battery and ensure that the voltage is within input voltage range of energy storage inverter. | + | Step 1: Use a multi-meter to measure the voltage of battery and ensure that the voltage is within input voltage range of energy storage inverter.\\ |
| - | Step 2: Turn off the DC breaker. Wiring operation can be conducted after using a multi-meter to measure and confirm that there is no voltage between positive and negative poles of DC input. | + | Step 2: Turn off the DC breaker. Wiring operation can be conducted after using a multi-meter to measure and confirm that there is no voltage between positive and negative poles of DC input.\\ |
| - | Step 3: Use a wire stripper to strip the DC cable in a proper length, cover a cord end terminal and use wire crimpers to compress it. Recommended DC cable 25mm2 (AWG 3) with copper cord. | + | Step 3: Use a wire stripper to strip the DC cable in a proper length, cover a cord end terminal and use wire crimpers to compress it. Recommended DC cable 25mm2 (AWG 3) with copper cord. \\ |
| - | Step 4: Connect the positive cable of the battery pack to the “DC+” of the DC terminal block so that the angle between the cable and the terminal block is 90 degrees. | + | Step 4: Connect the positive cable of the battery pack to the “DC+” of the DC terminal block so that the angle between the cable and the terminal block is 90 degrees.\\ |
| - | Step 5: Connect the negative cable of the battery pack to the “DC-” of the DC terminal block so that the angle between the cable and the terminal block is 90 degrees. | + | Step 5: Connect the negative cable of the battery pack to the “DC-” of the DC terminal block so that the angle between the cable and the terminal block is 90 degrees.\\ |
| - | Step 6: Confirm wiring firmness and lock of DC cable. | + | Step 6: Confirm wiring firmness and lock of DC cable. |
| Remark: The angle of 90 degrees between the cable and the terminal is for convenient installation of the DC side protective case. | Remark: The angle of 90 degrees between the cable and the terminal is for convenient installation of the DC side protective case. | ||
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| ===== AC wiring ===== | ===== AC wiring ===== | ||
| - | Step 1: Use a phase-sequence meter for measurement, | + | Step 1: Use a phase-sequence meter for measurement, |
| - | Step 2: Turn off the AC breaker connected to energy storage inverter. | + | Step 2: Turn off the AC breaker connected to energy storage inverter.\\ |
| - | Step 3: Use a multi-meter to measure and confirm that the cables connected to the terminals are electrically neutral. | + | Step 3: Use a multi-meter to measure and confirm that the cables connected to the terminals are electrically neutral.\\ |
| - | Step 4: Use a wire stripper to strip the AC cable in a proper length, cover a cord end terminal and use wire crimpers to compress it. Recommended AC cable 16mm2 (AWG 5) with copper cord. | + | Step 4: Use a wire stripper to strip the AC cable in a proper length, cover a cord end terminal and use wire crimpers to compress it. Recommended AC cable 16mm2 (AWG 5) with copper cord. \\ |
| - | Step 5: Connect AC cable to “L1”, “L2”, “L3” and “N” of AC wire terminal block; | + | Step 5: Connect AC cable to “L1”, “L2”, “L3” and “N” of AC wire terminal block;\\ |
| - | Step 6: Confirm wiring firmness and lock the waterproof tube of AC cable. | + | Step 6: Confirm wiring firmness and lock the waterproof tube of AC cable.\\ |
| <WRAP center round warning 60%> | <WRAP center round warning 60%> | ||