变压器低压出线电缆热稳定校验

Thermal Stability Verification of Cable at Low Voltage Side of Transformer

介绍了工程实际中变压器低压侧出线的热稳定校验计算过程,并在实例中指出热稳定校验常出现忽略短路电流的非周期分量影响、断路器的限流能力而导致的计算错误,为热稳定校验提供借鉴。

The calculation process of thermal stability verification of transformer low-voltage side outlet in engineering practice is introduced.In the example,the calculation errors caused by ignoring the influence of the non-periodic component of the short-circuit current and the current limiting ability of the circuit breaker are pointed out in the thermal stability check,which provides reference for the thermal stability verification.