The Secondary Injection Over-Current Relay Test Kit, designated as Type SI/CV-30 in a briefcase model, is a specialized portable test equipment designed for the calibration and testing of over-current protection relays. These relays are critical components in electrical systems, responsible for detecting and responding to over-current conditions, such as short circuits or overloads. Testing and calibration of these relays are crucial to ensure the protection system operates correctly and prevents electrical faults and damag
