I. Compliance with standards:

The performance of the miniature circuit breaker tripping characteristic testing machine is designed and manufactured in accordance with the national standards of GB10963.1-2005, GB14048.2-2008, and JB/T8979-2006, Article 8.13. It is capable of conducting delayed tripping characteristic tests on circuit breakers, that is, applying 1.13 times, 1.45 times, and 2.55 times the rated current for tests to determine if they trip within the specified time. It is also possible to conduct instantaneous tripping characteristic tests on circuit breakers, that is, to apply 3 to 10 times the rated current for the test and determine whether it trips within the specified time.

Ii. Scope of Application
It is mainly applicable to the online pre-factory detection of DZ series circuit breakers, capable of conducting instantaneous tripping characteristic tests on circuit breakers. The equipment features rapid product installation, automatic testing, and automatic judgment functions. It is an essential device for the electrical performance testing of miniature circuit breaker manufacturers.

Iii. Technical Parameters
1. Total equipment capacity: 3KVA per workstation;
2. Equipment power supply voltage: 220V±15%, 50Hz;
3. Current range: Products with a maximum rated current of 63A support the upper computer communication protocol. The software automatically sets the range range, and the communication port is RS232.
4. High current instantaneous peak tripping current: Adjustable AC current, up to 1000A, digital display of true RMS current value;
5. Output voltage: ≤12V;
6. Current transformer: The transformation ratio is 1000/5A, and the accuracy is 0.2 grade.
7. Time relay timing range: 0.01s-99.99s;
8. Current output waveform: Sine wave;
9. Digital display instantaneous trip time: 0 to 200ms, with a resolution of 1ms. Supports communication protocols. The instantaneous trip time is uploaded to the upper computer software, including a counter component. The communication port is RS232.
10. Comprehensive error: ±1.5%
11. Current control mode: Manually adjust the required output current value;
12. Operating ambient temperature: 0 to +40℃;
13. Relative humidity: (20-90) %RH
14. Ac power supply: 12V,2000A; Dc power supply: 12V,400A; Dc regulated power supply: 10KW.