DRJB830 Microcomputer Relay Protection Tester - Yangzhou Darui

DRJB830 Microcomputer Relay Protection Tester - Yangzhou Darui

Published: 2020-08-22 10:54:21

Category: Microcomputer Relay Protection Tester

Product Description

DRJB830 Microcomputer Relay Protection Tester

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Technical Parameters:

1. The three-phase microcomputer relay protection tester can test current, voltage, frequency, differential, impedance, distance, direction, intermediate, time and other relay protection devices, as well as synchronism check relays, synchronizing devices and other safety automatic devices.

2. The three-phase microcomputer relay protection tester is equipped with four-phase AC voltage sources and three-phase AC current sources. Each phase of voltage and current source forms an independent loop, and their amplitude, phase, and frequency can be continuously adjusted.

3. Current source of the three-phase microcomputer relay protection tester: The resolution, accuracy, total harmonic distortion rate, response speed, load capacity, and output time of the AC current source output amplitude shall meet the following requirements simultaneously.

Adjustable range and resolution of output current amplitude:

AC amplitude: 0~40A/phase, 0~120A/three-phase parallel, resolution: 1mA

DC amplitude: 0~30A/phase, 0~90A/three-phase parallel, resolution: 2mA

Accuracy of output current amplitude: 0.2%.

Output current response speed: <160μs

Total harmonic distortion rate of output current: <0.5%.

DC component in output AC current: <0.5%.

Load capacity: 520VA/phase.

Output time: Under rated working conditions, when the output current is within the range of less than 10A, it can output continuously;

Under rated working conditions, when the output current is within the range of 10-20A, the continuous output time shall not be less than 60s;

Under rated working conditions, when the output current is within the range of 20-30A, the continuous output time shall not be less than 10s;

Under rated working conditions, when the output current is within the range of 30-40A, the continuous output time shall not be less than 7s.

4. Voltage source: The resolution, accuracy, total harmonic distortion rate, response speed, load capacity, and output time of the AC voltage source output amplitude shall meet the following requirements simultaneously.

Adjustable range and resolution of output voltage:

AC amplitude: 0~125V/phase, 0~250V/two-phase series, resolution: 2.5mV

DC amplitude: 0~130V/phase, 0~260V/two-phase series, resolution: 3.5mV

Accuracy of output voltage amplitude: 0.2%.

Output voltage response speed: <120μs

Total harmonic distortion rate of output voltage: <0.5%.

DC component in output AC voltage: <0.5%.

Load capacity: 50VA/phase.

AC voltage source output time: can output continuously under rated working conditions.

5. Synchronization between AC current source and AC voltage source: The asynchronous time between current and voltage output shall not exceed 50μs.

6. GPS synchronization for time adjustment: <50μs.

7. Frequency: range 0~1000Hz, resolution: 0.001Hz (power frequency), 0.1Hz (1KHz), accuracy: 0.001Hz.

8. Phase: phase shift range is 0~360°.

The minimum adjustable step is 0.1°, resolution is 0.1°, accuracy is 0.1°.

9. Time: range: 0.001~999.999 seconds

Accuracy: 1ms

10. Switch input: 7 pairs of dry contacts or potential flip (5~250VDC).

11. Switch output: 3 pairs (0.5A/250VDC).

12. When the voltage source output terminal of the test device is short-circuited or the current source output terminal is open-circuited, it shall not cause damage to the test device itself, the tested relay, protection, and safety automatic devices.

13. Power supply voltage: 120~250VAC

Note: The above information and technical parameters are compiled and released by Yangzhou Darui Electric Co., Ltd.

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Product Details

DRJB830 Microcomputer Relay Protection Tester - Yangzhou Darui