Our company has launched a KDGK-1000A DC circuit breaker ampere second characteristic tester that 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 KDGK-1000A 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. Using high-performance industrial computer and Windows XP operating system, real-time display of various parameter curves and 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.
3. Switching constant current control technology, new power device, self setting constant current output from 1A to 1000A, 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~1000A DC circuit breakers, and can be used for ampere second characteristic testing of 6A~1000A DC fuses.
5. The measurement method adopts full point testing or spot testing, with fast response speed, high testing accuracy, and safety and reliability.
6. The instrument 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 to draw the circuit breaker protection characteristic curve (ampere second curve), and generate report outputs.
8. The industrial computer comes with 4G storage space and is equipped with two USB interfaces for easy extraction and printing of test records.

1. Working voltage: AC220V, 50Hz
2. Environmental temperature: -20 ℃~50 ℃
3. Working humidity: ≤ 90% RH
4. Test current: 1-1000A
5. Test current ripple factor:<2%
6. Output current stability: ≤± 1%
7. Time recording range: 1ms to 1000s
8. Minimum time resolution: 0.1ms
9. Operation mode: keyboard, touchpad (can be connected to an external USB mouse)