NP702 Relay Protection Tester - Yangzhou Darui - Yangzhou Darui Electric Co., Ltd.

NP702 Relay Protection Tester - Yangzhou Darui

Published: 2020-08-06 15:28:41

Category: Microcomputer Relay Protection Tester

Product Description

NP702 Relay Protection Tester

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Product Parameters:

Current Output	AC	Phase current output (RMS) Three-phase parallel current output (RMS) Long-term allowable working value of phase current (RMS) Maximum output power of phase current Maximum output power when three-phase parallel current is at maximum Allowable working time when three-phase parallel current is at maximum Frequency range (fundamental) Harmonic order	0-40A 0-120A10A/ per phase450VA900VA10s20-1000Hz1-20 times
	DC	Phase current output maximum output load voltage	0-±10A 20V
Voltage Output	AC	Phase voltage output (RMS) Line voltage output (RMS) Phase voltage / Line voltage output power Frequency range (fundamental) Harmonic order	0-120V0-240V80VA / 100VA20-1000Hz1-20 times
	DC	Phase voltage output amplitude Line voltage output amplitude Phase voltage / Line voltage output power	0-±160V0-±320V70VA / 140VA
Switch Input		7 pairs of dry contacts 1-20mA, 24V potential contact input “0”: 0 - +6V; “1”: +11v - +250V
Switch Output		8 dry contacts Contact DC: 220V/0.2A; AC: 220V/0.5A
Time Measurement		Measurement range 0.1ms - 9999s
Power Supply Voltage		Allowable range AC 220V±10%, 50/60Hz
Ambient Temperature		Allowable range -10℃ - +50℃

Output and Measurement Accuracy:

Accuracy within rated range	Current	AC phase current <0.5%AC high current terminal output <0.5%DC current <0.5%
	Voltage	AC voltage <0.5%DC voltage <0.5%
	Others	Frequency accuracy (at 50Hz) <0.01HzPhase accuracy <0.1°Harmonic distortion <0.5%Time measurement accuracy <0. 1ms

Product Features:

1. Intelligent host: The host uses a high-speed high-performance digital signal processor, with fast computation speed, wide transmission bandwidth, and double-precision algorithm in software to generate high-precision waveforms of any phase. Due to the integrated structure, the parts are closely connected, the data transmission distance is short, and the structure is compact.

2. Standalone operation: The YTC702 microcomputer relay protection tester is operated through a large-screen LCD display with a convenient and flexible rotary mouse, with full Chinese display, and can complete most on-site test and verification work.

3. Connected to computer: Through the full Chinese operation software on 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. Large-screen LCD display: The YTC702 microcomputer relay protection tester uses a large-screen high-resolution graphic LCD display, all operation processes are set on the display, the operation interface and test results are displayed in Chinese, and the display is intuitive and clear.

5. "Foolproof" operation: This microcomputer relay protection tester uses an advanced rotary mouse, greatly simplifying the structure of the operation part, making operation simple, fast, and easy to master.

7. New high-fidelity power amplifier: The output stage uses a new high-power modular high-fidelity power amplifier component, which can be used for both current output and voltage output, with large output power, good accuracy, and high reliability.

8. Direct current and voltage output: Phase voltage and phase current use DC-type power amplifier output mode, which can directly output AC voltage, AC current, DC voltage, DC current, and can change angle and frequency, and can superimpose 1-20 harmonics.

9. Self-protection: The YTC702 microcomputer relay protection tester 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.

10. Independent dedicated DC power output: The device is equipped with a dedicated adjustable DC power output of 110V and 220V.

11. Rich contacts: This microcomputer relay protection tester has 7 contact inputs and 2 dry contact outputs. The input contacts are compatible with dry contacts and 0-250V potential contacts, and can be intelligently and automatically identified.

12. Integrated single-unit structure: This microcomputer relay protection tester works with AC 220V power supply. It is small in size, light in weight, easy to carry, and convenient for mobile testing.

13. High cost performance: The YTC702 microcomputer relay protection tester is a cross-disciplinary joint design product, integrating advanced scientific and technological achievements of multiple disciplines. It combines the performance of large testers and the price of small testers, with high cost performance.

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

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Product Details

NP702 Relay Protection Tester - Yangzhou Darui