The KDZD500A DC circuit breaker ampere second characteristic tester is suitable for on-site use in substations, easy to carry, and has a high degree of automation. It can provide a testing method for the action characteristics of DC protection devices for operation and maintenance departments, and verify the action characteristics and level coordination of DC protection devices to improve the reliability of DC system operation and ensure the safe and reliable operation of the power grid.

The KDZD500A DC circuit breaker ampere second characteristic tester is designed specifically for testing, maintenance, and repair work in substations. Satisfy the overload and short-circuit characteristic testing of DC circuit breakers, thereby improving the health level of the DC system in substations and avoiding the occurrence of over class tripping and large-scale power outages in the DC distribution network.

1. The main control part adopts high-performance industrial computer, Windows XP operating system, and displays real-time parameter curve graphs and numerical values.
2. Keyboard and touchpad input (can be connected to an external USB mouse); 5.7-inch TFT true color LCD screen display. Easy to operate, beautiful interface, most parameters are clear at a glance.
3. Switching constant current control technology, new power device, self setting constant current output from 1A to 500A, high constant current accuracy, strong load capacity, and can work stably for a long time.
4. Suitable for ampere second characteristic testing of rated current 1A~500A DC circuit breakers, and can be used for ampere second characteristic testing of 6A~100A DC fuses.
5. The measurement method adopts full point testing or spot testing, with fast response speed, high testing accuracy, safety and reliability.
6. The DC circuit breaker ampere second characteristic tester has overheat, overcurrent, and overvoltage protection functions, good electromagnetic compatibility, and strong anti-interference ability.
7. The test management software can automatically complete the testing of the ampere second characteristics of DC circuit breakers, analyze the test data, draw the circuit breaker protection characteristic curve (ampere second curve), and generate report output.
8. The industrial computer comes with 4G storage space, which can store test records, and is equipped with two USB interfaces for easy extraction and printing of test records.
9. The DC circuit breaker ampere second characteristic tester adopts an integrated design, which is easy to carry.

1. Working voltage: AC220V, 50Hz
2. Environmental temperature: -20 ℃~50 ℃
3. Working humidity: ≤ 90% RH
4. Test current: 1-500A (customized for 1000A and above)
5. Test current ripple factor:<2%
6. Output current stability: ≤± 1%
7. Time recording range: 1m