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 listened to 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 manufactures 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 functions
Three-phase current output
Supports independent three-phase current output, meeting conventional relay protection testing requirements.
Four-phase voltage output
Supports three-phase voltage and zero-sequence voltage output, meeting the testing requirements of various protection devices.
High-current output
Three-phase currents can be connected in parallel, with maximum output current up to 120A, suitable for high-current protection testing.
High-precision testing
Adopts 16-bit DAC high-precision digital conversion technology, improving current and voltage output accuracy.
DSP + FPGA digital control
Uses DSP and FPGA cooperative control to achieve high-speed, stable, and precise signal processing and waveform output.
High-fidelity linear power amplification
Adopts high-fidelity linear power amplifiers, with stable output waveforms and low distortion, reducing high-frequency and medium-frequency interference.
Fault simulation function
Can simulate different types of power system faults, providing test signals for relay protection operation characteristic testing.
Protection setting verification
Supports verification of relay protection device settings and operation parameters, quickly determining whether the protection device meets the set requirements.
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Produktmerkmale
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.
Produktparameter
Wechselstromausgang
| Ausgabepräzision | 0,2 Grad |
| Phasenstromausgang (Effektivwert) | 0~40A |
| 3-Phasen-Parallelstromausgang (Effektivwert) | 0~120A |
| Phase current long-term allowable working value (effective value) | 10 A |
| Maximum output power of phase current | 420VA |
| Maximale Ausgangsleistung von 3 Parallelströmen | 900VA |
| Maximal zulässige Arbeitszeit von 3 Parallelströmen | 10s |
| Frequenzbereich (Grundfrequenz) | 0~1000Hz |
| Harmonische Zeit | 1~20 |
Gleichstromausgang
| Ausgabepräzision | 0,5 Grad |
| Ausgangsstrom | 0～±10A/phase, 0～±30A/3 parallel |
| Maximum output load voltage | 20V |
Wechselspannungsausgang
| Ausgabepräzision | 0,2 Grad |
| Phasenspannungsausgang (Effektivwert) | 0~120V |
| Netzspannungsausgang (Effektivwert) | 0~240V |
| Phasenspannung / Ausgangsleistung der Netzphase | 80VA/100VA |
| Frequenzbereich (Grundfrequenz) | 1~1000Hz |
| Harmonische Zeit | 1~20 |
Gleichspannungsausgang
| Ausgabepräzision | 0,2 Grad |
| Phasenspannungs-Ausgangsbereich | 0～±160V |
| Ausgangsbereich der Netzspannung | 0～±320V |
| Phasenspannung / Ausgangsleistung der Netzphase | 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 |
| Stromversorgung | AC 220V±10%, 50/60Hz |
| Umgebungstemperatur | -10℃~+50℃z |
Application Scenarios
Substation relay protection testing
Used for commissioning, verification, setting value validation, and operation characteristic testing of relay protection devices in substations.
Power plant relay protection testing
Used for performance testing and operation maintenance of generators and related relay protection systems.
Power system on-site commissioning
Suitable for power engineering sites, performing installation commissioning, functional verification, and pre-commissioning testing of relay protection devices.
Transformer protection testing
Used for testing and verification of protection functions such as transformer differential protection and overcurrent protection.
Relay and protection device verification
Used for testing various current, voltage, time, and operation characteristics, verifying the working performance of relays and protection devices.
Power equipment fault simulation
Tests the operation logic and response performance of protection devices by simulating different types of power system faults.
Power laboratories
Used for performance testing, R&D verification, technical research, and test data analysis of relay protection equipment.
Power equipment maintenance and servicing
Used for routine maintenance, fault diagnosis, and periodic verification of protection devices in power systems, ensuring reliable equipment operation.
FAQs
Q:What is the Three Phase Relay Protection Tester used for?
A: The Three Phase Relay Protection Tester is mainly used for testing, commissioning, calibration, and maintenance of relay protection devices in power systems, substations, power plants, laboratories, and other electrical testing environments.
Q:Can the Three Phase Relay Protection Tester be used for distance protection testing?
A: Yes. The tester can provide accurately controlled voltage, current, and phase signals for distance protection characteristic and operating tests.
Q:Can the Three Phase Relay Protection Tester perform DC current and voltage tests?
A: Yes. The Three Phase Relay Protection Tester supports both AC and DC current/voltage outputs, allowing users to perform a wide range of relay protection and electrical parameter tests.
Q:What kind of power amplifier does the Three Phase Relay Protection Tester use?
A: The tester uses a high-fidelity linear power amplifier, providing stable and low-distortion output waveforms for accurate relay protection testing.
Looking for a reliable Three Phase Relay Protection Tester manufacturer and supplier? We provide professional relay protection testing equipment with stable performance, high-precision output, and comprehensive testing functions. Whether you need a single unit for laboratory testing or bulk quantities for power projects, our team can provide competitive price, professional technical support, and customized solutions. Contact us to get the latest product information and quotation.
