Sudharsan Insulations

A Knee Point Voltage Test Kit is a specialized tool used to evaluate the knee point of the voltage–current characteristic curve of protective relays and current transformers (CTs) in electrical systems. The knee point is the voltage at which the current transformer begins to saturate, affecting the accuracy of protection relays. This test kit typically includes a high-voltage power supply, measurement instruments, and test leads, allowing precise voltage application to the CTs under test. By determining the knee point voltage, the kit helps ensure the accurate operation of protection systems, preventing false tripping and ensuring reliable performance in high-voltage networks. It is crucial for maintenance and testing in power systems.