Project Description

Product Features:

  • High-performance embedded industrial control computer and 8.4″ large-screen high-resolution color TFT LCD display can provide rich and intuitive information, including the current working status of the equipment, next-step work tips and various help information, etc.

  • The output end uses a high-fidelity, high-reliability modular linear power amplifier, rather than a switching power amplifier, with excellent performance.

  • The new generation of LTJB-1800 microcomputer relay protection tester is equipped with 10 channels of open input and 8 channels of open output, which is convenient for preparing automatic switching test. The input contacts are empty contacts and compatible with 0~250V potential contacts, which can be intelligently and automatically identified.

Product nicknames: Microcomputer Relay Protection Tester, Microcomputer Relay Protection Tester, Relay Protection Tester, Three-phase Relay Protection Tester, Relay Tester, Three-phase Relay Protection Tester, Three-phase Relay Protection Calibrator, and Relay Calibration Verifier, three-phase continuous protection calibrator, protection relay testing equipment.

The LTJB-1800 six-phase industrial control microcomputer relay protection tester is based on the DL/T624-1997 “Technical Conditions of Microcomputer Relay Protection Test Device” issued by the Ministry of Electric Power. It listens to users’ opinions and summarizes the current domestic similar products. Advantages and disadvantages, a new type of miniaturized microcomputer relay protection tester realized by making full use of modern advanced microelectronics technology and devices.

Equipped with an independent 110V and 220V dedicated adjustable DC power output, which is convenient for on-site inspection and use.

The new generation of LTJB-1800 microcomputer relay protection tester is equipped with 10 channels of open input and 8 channels of open output, which is convenient for preparing automatic switching test. The input contacts are empty contacts and compatible with 0~250V potential contacts, which can be intelligently and automatically identified.

Provide various automatic test software modules and GPS synchronization trigger test (optional), etc.

It can complete a variety of complex calibration work, can easily test and scan various protection settings, and perform fault playback. Can store test data in real time, display vector diagrams, print reports, etc.;

The design of the heat dissipation structure is reasonable, the hardware protection measures are reliable and complete, and it has the function of power soft start, the software performs self-diagnosis for faults and output blocking functions.

AC current output 
Each phase output when 6-phase current output (effective value)0`30A
Output accuracy   ≤0.5A   ±2mA                       >0.5A   0.2%
Each phase output (effective value) when three-phase current output0~60A 
6-phase parallel current output (effective value) 0~180A
Long-term allowable working value of phase current (effective value)10A
Maximum output power of phase current400VA
Allowable working time at maximum output of 6-phase parallel current10s
Frequency range (fundamental wave)0`1000HZ
Harmonic frequency1-20次
DC current output of microcomputer relay protection tester
Current output0~±10A / each phase 0~±60A / 6 parallel
Output accuracy0.5 level
Line voltage output amplitude0~±320V
Phase voltage/line voltage output power70VA / 140VA
Switch
10 switch inputs
Air contact1~20mA,24V
Potential contact access“0”:0 ~ +6V; “1”:+11 V ~ +250 V
8 pairs of switch output DC:220 V/0.2 A;AC:220 V/0.5 A
Time measurement range   0.1ms ~ 9999s 
measurement accuracy <0.1mS
volume and weight 480×360×200mm³ ,17kg 
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