IIMTM01

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[] Programmable Controller +++++++++ Distributed control system []
Battery management unit
The main functions that the battery management unit should have: monitor the battery cell voltage, and dynamically charge and discharge the battery. monitoring, and should have the function of real-time measurement of battery pack temperature. This unit can be set up independently, or it can be completed by the total monitoring unit and detection module respectively. The battery sampling line must be connected to the battery management unit through a fused terminal. The battery voltage sampling accuracy should be accurate to 3 decimal places.
DC power supply system insulation detection device
The main functions that the DC power supply system insulation detection device should have: online monitoring of the insulation status of the DC power supply system to the ground (including the insulation status of the DC bus and each feeder loop), and automatic detection In the event of a faulty circuit, the bus's positive to ground and bus's negative to ground voltages can be monitored, and the positive to ground resistance and negative to ground resistance of each branch can be detected.
The insulation detection device should not inject AC signals into the DC power supply system.
The insulation detection device should communicate with the total monitoring unit or substation monitoring system in the complete device.
The alarm value of the measured busbar and branch positive and negative pole insulation resistance to ground can be set by the detection device. The alarm value should be set to (system), (system). The busbar to ground voltage detection error is not greater than the branch resistance detection The error is no greater than .
Instruments
The DC power supply system should be equipped with digital bus voltage, battery voltage, charging device current, battery current and other meters, with a voltmeter accuracy of . The distribution cabinet should be equipped with a DC voltmeter.
Accident lighting switching screen
The accident lighting has an AC and DC switching function. The input power supply is AC under normal circumstances, and it can instantly and automatically switch to the DC system for power supply during an accident. The output circuit should use a circuit breaker with short-circuit breaking capability.
Other requirements
. Screen requirements
The components installed in the screen should have type test reports and certificates, and standardized components and assemblies should be used. The device structure mode consists of plug-in boxes or screen cabinets. The overall dimensions of plug-ins and plug-in boxes should comply with the provisions of B. The plug-ins in the device should be strong, reliable and replaceable. The screen body and all plug-ins, plug-in boxes and individual components installed on the screen should meet the shockproof requirements. Plug-ins and plug-in boxes should have obvious grounding signs. All components should be arranged neatly and with clear layers to facilitate operation, debugging, maintenance and disassembly, and sufficient space should be left. For plug-ins with adjustment settings in the device, the adjustment mechanism should have good insulation and locking facilities.
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