Intelligent three-phase microcomputer relay protection tester main features:
1. Standard 4-phase voltage and 3-phase current output with 4-phase voltage and 3-phase current output, allowing convenient various combined outputs for various types of protection tests. Each phase voltage can output 120V, current three-phase parallel can output 90A, the 4th phase voltage Ux is a multifunctional voltage item, can be set to 4 types of 3U0 or synchronization voltage, or output any certain voltage value.
2. Standalone operation is convenient. The standalone unit is operated via a large-screen LCD display with a flexible rotary mouse, all in Chinese. It can complete most on-site test and verification work, can verify various relays and microcomputer protections, and can simulate various complex transient, permanent, and conversion faults for whole-set tests. It is ready to use upon power-on, with quick and convenient operation.
3. Dual operation modes, when connected to a computer, through a full set of Chinese operating software on the Windows platform, it can perform various large-scale complex and more automated calibration work, conveniently test and scan various protection settings, store test data in real-time, display vector diagrams, draw fault waveforms, and print reports online.
4. Powerful software functions can complete various large-scale complex calibration work with high automation, such as three-phase differential tests, plant power fast switching, backup auto-switching tests, line protection synchronization and reclosing, etc., conveniently test and scan various protection settings, perform fault replay, store test data in real-time, display vector diagrams, and print reports online.
5. Rich switch quantity contacts: 7 contact inputs and 3 pairs of empty contact outputs. Input contacts are compatible with empty contacts and 0~250V potential contacts, with intelligent automatic recognition. Input and output contacts can be expanded according to user needs.
6. Large-screen LCD display: This unit adopts a 320×240 dot matrix large-screen high-resolution graphic LCD display. All operation processes are set on the display, and the operation interface and test results are displayed in Chinese, with intuitive and clear display.
7. Self-protection: Adopts a reasonably designed heat dissipation structure, and has reliable and complete multiple protection measures and power soft start, as well as certain fault self-diagnosis and blocking functions.
8. Has independent dedicated DC power supply output: The device is equipped with a 110V and 220V dedicated adjustable DC power supply output.
9. High cost-performance ratio: It is a cross-professional joint design product, integrating advanced scientific and technological achievements from multiple disciplines. It combines the performance of large testers with the price of small testers, offering a very high performance-to-price ratio.
Technical Parameters
1. Current source
AC amplitude: 0~40A/phase 0~120A/three-phase parallel
DC amplitude: 0~30A/phase 0~90A/three-phase parallel
Power: 400VA/phase
Amplitude accuracy: ≤0.2%, response time <160μS, resolution: AC 1mA, DC 2mA
2. Voltage source
AC amplitude: 0~125V/phase DC amplitude: 0~220V/phase
Auxiliary power: VZ: 3VO 0~125VAC or 0~220VDC power ≥130W
Maximum power: 50VA/phase accuracy: ≤0.2% response time <120μ S
Resolution: AC 2.5mV DC: 3.5mV
3. Frequency: range 0~1000Hz resolution: 0.001Hz (power frequency) 0.1Hz (1KHz)
4. Phase: range 0~360 degrees resolution: 0.1 degree accuracy: 0.1 degree
5. Time range: 0~9999.999S±1.0ms
6. Switch quantity input: 7 pairs of empty contacts/10~250VDC potential contacts
7. Switch quantity output: 3 pairs of empty contacts (capacity: 250VAC, 2A)
8. Supply voltage: 120V~250VAC 50/60Hz
