relay tester
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Handheld Relay Protection Tester
The RDJB-802H Handheld Relay Protection Tester is designed for power grid companies, power plants, power construction firms, protection device manufacturers, petrochemical enterprises, and rail transit traction power supply systems. It is also suitable for other users working with electrical secondary equipment in operation, maintenance, and debugging. The device has a built-in large-capacity lithium battery. It is lightweight, compact, and easy to operate. It is especially useful for outdoor maintenance tests of power system distribution network automation devices. It can also perform action logic tests of protection devices.
Email Details
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2811-2024
Relay protection CT disconnection detailed explanation
CT disconnection refers to the occurrence of circuit disconnection in the secondary circuit of the current transformer (CT), which will make the secondary side unable to transmit current signals normally to the relay protection device or measuring instrument. The main function of the current transformer is to reduce the large current in the high-voltage line to a safe level in a certain proportion to facilitate the measurement and protection of the equipment to work.
