Product Introduction
The UHV-803 Three phase relay protection tester is a new miniaturized microcomputer relay protection tester based on DL/T624-1997 "Technical Conditions for Microcomputer relay Protection test Device" issued by the Ministry of Power, which is widely listenedto the views of users, summarized the advantages and disadvantages of similar domestic products, and made full use of modern advanced microelectronics technology and devices. The microcomputer relay protection tester adopts the advanced structure of independent operation of a single machine and can also be connected to a laptop computer. The main machine adopts DSP+FPGA structure, true 16-bit DAC output, built-in new modular high-fidelity linear high-power amplifier, 8.4 inch TFT true color display with resolution of 800×600 and industrial keyboard and mouse. WindowsXP operating system, powerful. Small size, high precision. It not only has the superior performance and advanced function of the large tester, but also has the advantages of small, flexible, easy to operate, high reliability, and high performance-price ratio. It is a good tool for continuity workers.
Product Features
1. Flexible Multi-Channel Output
Provides configurable 4-phase voltage and 3-phase current outputs, supporting standard testing modes while enabling specialized transformer differential and fast transfer switching tests.
2. Computer-Controlled Operation
Features direct PC connectivity via laptop or desktop for stable and efficient test execution.
3. Premium Linear Amplification
Employs high-fidelity linear amplifiers (non-switching type) to ensure clean power delivery without high/medium frequency interference across all current ranges.
4. Advanced Portable Host
DSP-controlled output with high-speed processing delivers precise waveforms in a compact, lightweight design ready for immediate field deployment.
5. Intelligent Test Software
Automates complex calibration tasks with capabilities including protection setting verification, fault replay, data logging, vector diagrams, and report generation.
6. Dual DC Power Supply
Integrated 110V/220V DC outputs for auxiliary power requirements.
7. Expanded Connectivity
Includes USB ports for seamless device communication and data transfer.
8. Comprehensive Protection System
Incorporates thermal management, soft-start circuitry, and diagnostic safeguards for reliable operation.
Product Parameters
AC current output
| Output Precision | 0.2 degree |
| Phase current output (effective value) | 0~40A |
| 3 phase parallel current output (effective value) | 0~120A |
| Phase current long-term allowable working value (effective value) | 10A |
| Maximum output power of phase current | 420VA |
| Maximum output power of 3 parallel current | 900VA |
| Maximum Permitted work time of 3 parallel current | 10s |
| Frequency range (fundamental) | 0~1000Hz |
| Harmonic time | 1~20 |
DC current output
| Output Precision | 0.5 degree |
| Output current | 0～±10A/phase, 0～±30A/3 parallel |
| Maximum output load voltage | 20V |
AC voltage output
| Output Precision | 0.2 degree |
| Phase voltage output (effective value) | 0~120V |
| Line voltage output (effective value) | 0~240V |
| Phase voltage / Line phase output power | 80VA/100VA |
| Frequency range (fundamental) | 1~1000Hz |
| Harmonic time | 1~20 |
DC voltage output
| Output Precision | 0.2 degree |
| Phase voltage output range | 0～±160V |
| Line voltage output range | 0～±320V |
| Phase voltage / Line phase output power | 70VA/140VA |
Switch quantity and time measurement
| note | ||
| Switching input | 10 road | Null contact:1~20mA, 24V potential contact access:"0":0~+6V; "1": +11V to +250V |
| potential contact access:"0":0~+6V;"1":+11V~+250V | ||
| Switching output | 8 pair | DC：220V／0.2A；AC：220V／0.5A |
| Time measurement | measurement range is 0.1ms ~ 9999s;measurement accuracy is 0.1ms | |
Volumetric weight
| Industrial control type | |
| Overall dimension | 375×305×140mm³ |
| Single weight | 13kg |
| Power supply | AC 220V±10%, 50/60Hz |
| Ambient temperature | -10℃~+50℃z |
