It is necessary to study the working characteristics of the zero-sequence current transformer, and confirm whether it can saturate and affect the correctness of the maintenance action when the external fault passes through a large current during maintenance. It can...

　　 Energy transformers are very similar to transformers. They are used to transform the voltage on the line. The main difference lies in capacity, size, working magnetic density and compensation. The purpose of the transformer to transform the voltage is to keep the...

　　 The difference in current and voltage in the power supply line varies from a few amperes to tens of thousands of amperes. In order to facilitate the measurement of the secondary instrument, it needs to be converted into a relatively uniform current. In addition,...

　　Open-close current transformer, everyone is familiar with it. Their main function is to convert high values to low values. Suitable for measuring instruments and relays. Generally, the secondary rated current is 5A. So why should the current transformer be grounded?...

　　 Current transformers with “S” and without S both indicate the accuracy level of the measurement current transformer. Under the conditions of regular use, the error of the transformer is within the limit of the rule of this level. The commonly used...

The through-core current transformer does not have a primary winding in its own structure. The current-carrying (load current) wires from L1 to L2 pass through a round (or other shape) iron core made of silicon steel sheet rolling to serve as a primary winding. The...