Design of an Online Monitoring Device for Battery Effectiveness
Long-term operation will lead to the aging of the battery and the opening of the battery circuit,which makes the battery unable to provide the circuit breaker trip current in time when the substation fails,so it is very important to monitor the effectiveness of the battery.An on-line monitoring device for battery effectiveness is designed,and the on-line discharge test of battery is realized by using the principle of series voltage division of resistor and series depressurized sili-con chain.The use of power resistors to simulate the large current shock scenario when multiple circuit breakers are trip-ping,complete the load capacity test of the battery,avoid the traditional disconnecting the charger and reducing the volt-age of the charging machine caused by the bus voltage loss,restore the charging voltage,improve the safety.Through testing,it is found that the device can detect the abnormal battery and the abnormal circuit of the battery and give an alarm.The error between the acquisition voltage and the measured value of the device is less than 0.5%.
storage batteryon-line monitoringhigh current impulsedepressurized silicon chain
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