A 500A/1000A portable primary current injection tester is a device used to inject a high-current signal into an electrical system for testing and analysis. These testers are essential for verifying the performance and reliability of protective relays, circuit breakers, and other components within power distribution systems.

1. Input voltage: single phase 220V±10% / 50Hz±1%
2. Input current:  single phase  13.6 A
3. Output voltage: single phase 0 ~ 6V (adjustable)/ 50Hz±1%
4. Output current: single phase  0 ~ 500A    
5. Voltmeter:  accuracy /1.0%
6. Current meter:  accuracy 1.0%
7. The capacity of the equipment is designed according to the 5min short-time working system. If it is used for intermittent work, the power-on time should be less than 2.5min and the working cycle should be more than 10min

1. It belong to short or intermittent working system.
2. It's in small size, light weight, good performance.
3. Simple wiring connection , easy to use and maintenance .
4. In digital display, easy to read the value .
5. Designed with wheel, convenient to move in actual testing .

HMSLQ-500A box-type Primary Current Injection is a necessary equipment for high-current field in electrical test, which is used in power plant, distribution substation, electrical equipment manufacturing, scientific research, laboratory and other units.