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Secondary injection testing device UHV-1200voltagecurrentautomatic
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Characteristics
- Test type
- current, voltage
- Operating mode
- automatic, computer-controlled, PC-controllable
- Test material
- transformer, protection relay, for current transformer (CT), for voltage transformer (VT)
- Technology
- secondary injection
- Configuration
- benchtop
Description
Product Overview
Product Parameters
Product Characteristics
Main functions
Maintenance precautions
- The UHV-1200 Microcomputer Relay Protection Tester features flexible voltage and current output combinations, supporting up to 6-phase voltage and 6-phase current outputs. It can be configured in various modes, including conventional 4-phase voltage with 3-phase current, 6-phase voltage only, 6-phase current only, and 12-phase output modes. This flexibility ensures compatibility with traditional testing methods while also facilitating specialized tests such as three-phase transformer differential testing, fast bus transfer, and automatic transfer tests for auxiliary power systems.
- The output section is controlled by a high-performance DSP, providing fast operation, strong real-time digital signal processing capability, wide transmission bandwidth, and high-resolution D/A conversion. This results in high output waveform precision, low distortion, and excellent linearity.
- The instrument incorporates a large number of advanced technologies, precision components, and high-quality materials, combined with a professional structural design. As a result, it is compact in size, light in weight, fully functional, and easy to carry. Ready for immediate use upon startup, it is highly convenient for on-site and mobile testing applications.
Product Parameters
- argument
- Current channel number: Standard 6 phase
- Voltage channel number: Standard 6 phase
- Ac current output range: 30A/phase or 180A (six parallel)
- Dc current output range: 10ADC/phase
- Ac voltage output range: 120VAC/phase
- Dc voltage output range: 160VDC/phase
- Ac current output
- 6 phase current output per phase (effective value): 0 ~ 30A output precision 0.2
- 3 phase current output per phase (effective value): 0~60A
- 6 phase parallel current output (RMS): 0~180A
- Phase current long-term allowable working value (RMS): 10A
- Maximum output power of phase current: 450VA
- T6 phase parallel current maximum output power): 1000VA
- 6 Allowable working time for maximum output of phase parallel current: 10s
- Frequency range (fundamental): 0~1000Hz
- Harmonic frequency: 0 to 20 times
- Dc current output
- Current output: 0 ~±10A/phase output accuracy 0.5 level
- Maximum output load voltage: 20V
- Ac voltage output
- Phase voltage output (RMS): 0 ~ 120V output precision 0.2
- Line voltage output (RMS): 0~240V
- Phase voltage/line voltage output work: 80VA / 100VA
- Frequency range (fundamental): 0~1000Hz
- Harmonic frequency: 0 to 20 times
- Dc voltage output
- Phase voltage output amplitude: 0 ~ ±160V output accuracy 0.5
- Line voltage output amplitude: 0±320V
- Phase voltage/line voltage output power: 70VA / 140VA
- Switching value
- 8 switch inputs: Null contact 1 ~ 20mA, 24V
- Potential contact access "0" : 0 ~ +6V; 1: +11 V to +250 V
- 4 pairs of switching output DC: 220 V/0.2 A; AC:220 V/0.5 A
- Time measuring range
- Time measuring range: 0.1ms~9999s
- Measurement accuracy: 0 < 0.1mS
Product Characteristics
- Flexible Voltage and Current Output: Supports up to 6-phase voltage and 6-phase current output, configurable in various combinations including conventional 4-phase voltage with 3-phase current, 6-phase voltage only, 6-phase current only, and 12-phase output modes. This ensures compatibility with traditional testing methods while facilitating specialized tests such as three-phase transformer differential testing and fast bus transfer / automatic transfer tests for auxiliary power systems.
- Operation Mode: The device connects directly to an external laptop or desktop computer for operation, offering convenience, speed, and stable performance.
- High-Fidelity Linear Power Amplifier: The output consistently utilizes high-fidelity, high-reliability modular linear power amplifiers rather than switching power amplifiers, delivering excellent performance. This design eliminates high- and medium-frequency interference to the test site and ensures smooth waveforms across the entire current range, from large to small values.
- High-Performance Host Platform: The output section is controlled by a DSP, offering fast operation, strong real-time digital signal processing capability, wide transmission bandwidth, and high-resolution D/A conversion. This results in high output waveform precision, low distortion, and excellent linearity. The device incorporates advanced technologies, precision components, and high-quality materials, with a professional structural design that ensures compact size, light weight, full functionality, and easy portability. Ready for immediate use, it is highly convenient for on-site testing.
- Powerful Software Capabilities: The software supports a wide range of large-scale, highly automated calibration tasks. It enables easy testing and scanning of various protection settings, fault playback, real-time test data storage, vector diagram display, online report printing, and more. The 6-phase current capability facilitates three-phase differential protection testing.
- Independent Dedicated DC Power Output: The device includes a dedicated adjustable DC power output, providing both 110V and 220V outputs as standard.
- Comprehensive Interfaces: Equipped with a USB communication port for seamless connection to computers and other external devices.
- Comprehensive Self-Protection Features: The device incorporates a well-designed heat dissipation structure, reliable and comprehensive hardware protection measures, and power soft-start functionality. Software-based fault self-diagnosis and output lock features further enhance operational safety.
- Laptop Compatibility (Optional): The device can be connected to a laptop for operation. The laptop uses the same software as the industrial computer, eliminating the need to learn a new operating method.
Main functions
- Flexible combination of voltage and current outputs: configurable across six phases with modes such as 4‑phase conventional, three‑phase current, 6‑phase and combinable 12‑phase output.
- Designed for conventional relay protection tests, differential transformer tests and fast trip/self‑injection procedures.
- Direct connection to PC via USB for control, data acquisition and report generation.
- Modular linear power amplifiers for output: high fidelity, low distortion and excellent linearity for both high and low currents.
- High‑performance central unit with DSP control and high‑resolution D/A conversion for accurate waveform generation.
- Powerful software enabling test automation, protection parameter analysis, fault replay, vector display and online report printing.
- Hardware and software protections: soft start, fault diagnostics, output interlock and optimized thermal management.
Maintenance precautions
- Safety measures: During maintenance, the power supply of the relay protection tester should be disconnected first to ensure that the instrument is in a safe state. Meanwhile, use insulated tools for operation to avoid the risk of electric shock.
- Operating standards: Maintenance should be carried out according to the prescribed steps and procedures to avoid damage to the instrument. If the operation method cannot be determined, professional personnel can be consulted for consultation.
- Environmental requirements: The use and storage environment of the relay protection tester should meet the requirements, avoiding use and storage in harsh environments such as humidity, high temperature, and low temperature.
- Instrument storage: After maintenance, the relay protection tester should be placed back in the designated location to ensure safe and reliable storage of the instrument.
- Training and knowledge update: Provide regular training to personnel engaged in maintenance and upkeep of relay protection testers to improve their technical skills. At the same time, timely understanding of industry trends and technological developments, updating knowledge reserves, and improving maintenance quality and efficiency.
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