MCJB-702 Relay Protection Tester

MCJB-702 Relay Protection Tester

Model: MCJB-702 Quantity: 1 set Manufacturer: Hubei MECI Electric Power Equipment Co., Ltd

Category: Relay Protection Tester

Keywords: MCJB-702 Relay Protection Tester

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Product Overview

The MCJB-702 relay protection tester is the result of extensive innovation based on the MCJB-701. It features a user-friendly, “foolproof” operation interface, an expanded current and voltage output range, increased power capacity, and the addition of a fourth-phase voltage output, Ux. Ux can be configured for a variety of functions and set to deliver multiple output combinations. The testing capabilities have been significantly enhanced, and overall product performance has improved markedly, earning continued support and appreciation from a wide range of users.

Product Features

1. Intelligent Host Unit The host unit is equipped with a high-speed, high-performance digital signal processor, offering rapid computation and wide transmission bandwidth. Its software implements double-precision algorithms to generate highly accurate waveforms for each phase as required. Thanks to its integrated design, the various components are tightly coupled, resulting in short data transmission paths and a compact overall structure.

2. Standalone Operation: The device is operated via a convenient and flexible rotary mouse connected to a large LCD display, with full Chinese-language visualization, enabling it to perform most on-site testing and verification tasks.

3. Connection to a Computer for Operation With the complete suite of Chinese-language operating software on the Windows platform, a wide range of large-scale, complex, and highly automated verification tasks can be performed. The system enables convenient testing and scanning of various protection settings, real-time storage of test data, display of vector diagrams, plotting of fault waveforms, online report printing, and more.

4. Large-Screen LCD Display This instrument is equipped with a large, high-resolution graphical LCD display. All operating procedures are configured directly on the screen, and both the user interface and test results are displayed in Chinese for intuitive and clear visualization.

5. “User-Friendly” Operation: The advanced rotary mouse significantly simplifies the design of the control interface, making operation straightforward, quick, and easy to master.

7. New High-Fidelity Power Amplifier The output stage employs a new high-power, modular high-fidelity power amplifier module that can operate in both current-output and voltage-output modes, delivering high output power, excellent accuracy, and superior reliability.

8. Direct Output of Current and Voltage: Phase voltage and phase current are output via DC-type power amplifiers, enabling direct output of AC voltage, AC current, DC voltage, and DC current, with adjustable phase angle and frequency, as well as the superposition of harmonics from the 1st to the 20th.

9. Self-Protection: Employs a reasonably designed thermal management structure and incorporates multiple reliable and comprehensive protection measures, including soft-start for the power supply, as well as built-in fault self-diagnosis and interlock functions.

10. Independent Dedicated DC Power Output: The device is equipped with one dedicated, adjustable DC power output at 110 V and another at 220 V.

11. Rich I/O Configuration: Equipped with 7 digital input contacts and 2 relay output contacts. The digital inputs are compatible with both dry contacts and 0–250 V potential contacts, and can be intelligently and automatically identified.

12. Integrated single-chassis host architecture; operates on a 220V AC power supply. Compact size, lightweight, easy to carry, and convenient for mobile testing.

13. Excellent Cost Performance This is a cross-disciplinary, jointly designed product that integrates cutting-edge technological achievements from multiple fields. It combines the performance of large-scale test instruments with the affordability of compact models, delivering exceptional value for money.

Technical Specifications

Electricity

Flow

lose

to go out

Submit

 

Flow

Phase current output (RMS)

Three-phase current output (RMS)

Long-term permissible operating value (RMS) of phase current

Maximum output power of phase current

Maximum output power at the maximum output current of three parallel currents

Permitted operating time at maximum output current for three parallel connections

Frequency Range (Fundamental)

Harmonic order

0-40A

0-120A

10A / per phase

450VA

900VA

10s

20-1000Hz

1–20 times

Straight

Flow

Phase current output

Maximum Output Load Voltage

0–±10 A

20V

 

Electricity

Press

lose

to go out

Submit

 

Flow

Phase voltage output (RMS)

Line voltage output (RMS)

Phase Voltage / Line Voltage Output Power

Frequency Range (Fundamental)

Harmonic order

0-120V

0-240V

80 VA / 100 VA

20-1000Hz

1–20 times

Straight

Flow

Phase voltage output amplitude

Line voltage output amplitude

Phase voltage / Line voltage output power

0–±160 V

0–±320 V

70 VA / 140 VA

Digital Input

Dry contact 1–20 mA, 24 V

Potential contact input: “0”: 0 to +6 V; “1”: +11 V to +250 V

Digital output

Route 8

Dry contact: DC 220 V / 0.2 A; AC 220 V / 0.5 A

Time measurement Measurement range: 0.1 ms – 9999 s
Power supply voltage Permitted range: AC 220V ±10%, 50/60 Hz
Ambient temperature Permitted range: -10℃ to +50℃
Volumetric weight Dimensions: 400×300×180 mm 3 ; Weight: 22kg
MCJB-702 Relay Protection Tester

MCJB-702 Relay Protection Tester

Model: MCJB-702 Quantity: 1 set Manufacturer: Hubei MECI Electric Power Equipment Co., Ltd

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