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Emergency Power Supply And Efficiency Requirements In The National Standard

Update:09-02-2019
Summary:

1, efficiency    In the inverter emergency operation mo […]

1, efficiency

  

In the inverter emergency operation mode, the efficiency should not be lower than 85% for EPS with rated output power not exceeding 10kW; for products with rated output power 10kW to 100kW, the efficiency should be no less than 90%; for rated output power For EPS over 100 kW, the efficiency should be no less than 92%.

  

In the standard, the efficiency of the inverter emergency power supply is specified in three grades according to its output power. The efficiency of the inverter emergency power supply with rated output power not more than 10kW shall not be lower than 85%; the efficiency of the inverter emergency power supply with rated output power between 10kW and 100kW shall be not less than 90%; the rated output power shall be greater than 100kW. The efficiency of the product should not be less than 92%.

  

2, capacity, load power factor

  

a) When the load power factor is 1, the capacity of the product should reach the rated value;

  

b) For EPS with apparent power of 50kVA and above, the power factor should be within the range of 0.4~1, which should meet the needs of normal load operation.

  

This clause defines the rated output capacity of the inverter emergency power supply when the power factor is 1, which is the rated value that the inverter emergency power supply should reach.

  

When the apparent power of the inverter emergency power supply is 50kVA or more, the power factor is in the range of 0.4~1, and the inverter emergency power supply should be able to meet the needs of normal load operation.