6 Phase Relay Tester| Detailed introduction of technical principles

The relay protection tester is a dedicated "test" for relay protection devices. Its core principle is to simulate various normal and fault states of the power system (such as short circuits, grounding, and oscillations) through high-precision digital simulation and power amplification, injecting corresponding voltage and current signals into the protection device while receiving its action feedback to comprehensively verify the correctness of its logic, settings, and operating time.

The workflow is as follows:

1. Analog Output: The built-in digital simulator can be flexibly programmed to generate and amplify the output of simulated transient or steady-state three-phase voltage and current signals of the power system. The amplitude, phase, frequency, and harmonics can be precisely controlled.

2. Signal Injection: These "fault signals" are synchronously and accurately applied to the voltage and current input terminals of the protection device, simulating its actual operating conditions.

3. Monitoring and Verification: The device's contact actions, messages, and output times are monitored in real time. By comparing the actual action behavior and operating time with theoretical expectations, the reliability and speed of its protection function can be accurately evaluated, completing the debugging, verification, and acceptance of the protection device. Six-phase relay tester, six-phase relay protection tester, 6-phase voltage and 6-phase current tester

1. Flexible voltage and current output combinations: Outputs up to 6 phases of voltage and 6 phases of current, which can be arbitrarily combined to achieve conventional 4-phase voltage and 3-phase current output modes, 6-phase voltage output mode, 6-phase current output mode, and 12-phase output mode, compatible with various traditional testing methods.

2. Convenient stand-alone operation: The device panel is equipped with a trackball mouse, optimized keyboard, and large-screen TFT LCD display, and has built-in full Windows platform operating software. It is ready to use upon power-on, and operation is convenient and quick.

3. Dual operation modes: In addition to stand-alone operation, the device can also be operated by connecting to a laptop or desktop computer. Both methods have completely identical functions, providing a truly complete dual operation mode.

4. New high-fidelity linear power amplifier: The output end consistently uses a high-fidelity, high-reliability modular linear power amplifier, rather than a switching power amplifier, resulting in superior performance. It will not generate high or medium frequency interference in the test environment and ensures smooth waveforms and excellent accuracy throughout the entire current range, from large to small. 5. High-performance main unit: The output section adopts DSP control, featuring fast processing speed, strong real-time digital signal processing capability, wide transmission bandwidth, and high-resolution DAC control. Output waveform accuracy is high, with low distortion and good linearity.

Utilizing numerous advanced technologies and precision components, along with a professional structural design, the device is small in size, lightweight, fully functional, portable, and ready to operate upon startup, making mobile testing very convenient.

6. Powerful software functions: Capable of performing various highly automated, large-scale, and complex verification tasks. It can easily test and scan various protection settings, perform fault return discharge, store test data in real time, display vector diagrams, and print reports online.

6-phase current allows for convenient three-phase differential protection testing.

7. Independent dedicated DC power output: Equipped with one 110V and 220V dedicated adjustable DC power output.

8. Abundant contacts: Features 10 input contacts and 4 unused output contacts. Input contacts are compatible with both unused and 0-250V potential contacts, with intelligent automatic identification.

9. Comprehensive self-protection functions; reasonable heat dissipation structure design; reliable and comprehensive hardware protection measures; soft-start function; software self-diagnosis of faults and output interlocking functions.

1. AC current output: 6 channels, 30A each, 450VA, 180A in parallel for six phases.
2. AC voltage output: 6 channels, 120V each, 80VA, 240V line voltage.
3. Output accuracy: 0.2% (within the main range).
4. DC current output: 3 channels, ±10A each, 200VA.
5. DC voltage output: 3 channels, ±160V each, 70VA.
6. Output accuracy: 0.5% (within the main range).
7. Phase: 0-360°
8. Phase accuracy: 0.2°
9. Output frequency: 0-1000Hz
10. Frequency accuracy: 0.1Hz
11. Superimposed harmonics: 0-20th order
12. Input: 8 channels. Output: 4 pairs

13. Independent DC: DC110 220V, Rated Current 1.5A

14. Dimensions: 396mm*354mm*178mm, Weight: 17kg

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