The LDJB-1300 6 Phase Relay & Protection Tester is a comprehensive and high-performance relay protection testing equipment, carefully developed by Wuhan Longdian Electrical Equipment Co., Ltd. This tester integrates various advanced testing modules, including relay testing, microcomputer protection testing, harmonic superposition testing, frequency and high/low cycle testing, power direction and impedance testing, synchronization testing, whole group testing, etc., which can meet the comprehensive testing needs of various relay protection devices in the power system. The LDJB-130 adopts high-performance DSP control technology and high fidelity linear power amplifier to ensure the accuracy and stability of the output waveform, providing reliable technical support for the calibration of relay protection devices.
| AC current output | |
| The virtual value of each phase output when six phase current output | 0～30A |
| output precision | 0.1 grade |
| The virtual value of each phase output when three phase current output | 0～60A |
| The virtual value of six phase parallel current output | 0～180A |
| The allowed virtual value when the phase current work long time | 10A |
| The maximum output power of phase current | 450VA |
| The maximum output power when six phase parallel current output | 1000VA |
| The allowed working time when six phase parallel current maximum output | 10s |
| Frequency range（fundamental wave） | 0～1000Hz |
| Harmonic order | 0～20 |
| DC current output | |
| Current output | 0～±10A / phase |
| output precision | 0.2 grade |
| The maximum load volatage output | 20V |
| AC voltage output | |
| The virtual value of phase voltage output | 0～120V |
| output precision | 0.1 grade |
| The virtual value of line voltage output | 0～240V |
| The output power of phase voltage/ line voltage | 80VA / 100VA |
| Frequency range（fundamental wave） | 0～1000Hz |
| Harmonic order | 0～20 |
| DC voltage output | |
| The output amplitude of phase voltage | 0～±160V |
| output precision | 0.2 grade |
| The output amplitude of line voltage | 0～±320V |
| The output power of phase voltage/ line voltage | 70VA / 140VA |
| Input and output | |
| 8 channels input | Free contact 1～20mA，24V Electric potential contacts “0”：0 ～ +6V； “1”：+11 V ～ +250 V 4 channels output DC：220 V／0.2 A；AC：220 V／0.5 A |
| Time measurment range | 0.1ms ～ 9999s ， measurement accuracy ＜0.1ms |
1. The appearance of the product is subject to the actual product. Technical parameters and models are subject to change without prior notice. 2. To learn more about Longdian products, please enter the product center. Service Hotline: 400-6727-238
Multi functional testing module: integrates multiple testing modules such as relay testing, microcomputer protection testing, harmonic superposition testing, frequency and high/low cycle testing, power direction and impedance testing, synchronization testing, and whole group testing, which can comprehensively cover the testing needs of various relay protection devices in the power system.
Flexible voltage and current output: The tester supports the output of 6-phase voltage and 6-phase current, and can flexibly combine multiple output modes, including conventional 4-phase voltage and 3-phase current, 6-phase voltage, 6-phase current, and 12 phase output modes, to meet the needs of different experimental scenarios.
High performance hardware design: Using a high-speed digital control processor as the output core, combined with a high-precision D/A converter and low-pass filter, ensures the accuracy and linearity of the output waveform. At the same time, high fidelity linear power amplifiers are used to avoid high and medium frequency interference on the test site.
Powerful software features: The testing software has comprehensive functions, is easy to operate, and supports large-scale complex verification work with high automation. It can conveniently test and scan various protection settings, perform fault playback, store test data in real-time, display vector graphics, and support online printing of reports.
Independent dedicated DC power output: The tester is equipped with a 110V and 220V adjustable DC power output, which can be used as an auxiliary power supply for on-site testing to meet the DC power requirements of the protection device.
Complete self-protection function: It has comprehensive hardware protection measures and software self diagnosis function, ensuring that the equipment can automatically protect itself in abnormal situations and avoid damage. At the same time, the reasonable design of the heat dissipation structure ensures long-term stable operation of the equipment.
Portable design: The tester is small in size, light in weight, fully functional, easy to carry, and suitable for flow testing. Using an external laptop or desktop computer for operation, with stable performance and convenient operation.
Wide applicability: It is not only suitable for testing traditional relay protection devices, but also compatible with the testing needs of various new microcomputer protection devices and intelligent substations, with wide applicability and foresight.
