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HF-RT-204 Portable Relay Test set
Portable Relay Test Set supplies adjustable AC and DC voltage & current to simulate grid faults. It precisely measures trip time and pickup values for diverse power protection relays, ideal for on-site routine calibration and maintenance work.
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The HF-RT-204 handheld relay protection tester is designed for secondary circuit maintenance, commissioning and debugging work for power utilities, power plants, mining & chemical enterprises, power transmission & transformation engineering companies, relay protection instrument manufacturers and other users.
Features & Core Functions
- Abundant testing functions: supports general tests, manual testing, state sequence, automatic ramp-up, harmonic output, AC sampling, relay testing and small signal output.Functional tests cover reclosing overcurrent, distance protection, residual earth fault protection, underfrequency load shedding, undervoltage & synchronism checking.It satisfies testing demands for protection & control devices in 110kV and above main grid substations and power plants, as well as distribution terminals including FTU, DTU and TTU.
- Adopts low-power circuit design, which reduces overall heat generation and greatly improves continuous working capacity. It can run continuously for more than 8 hours under normal operating conditions.
- Equipped with exclusive digital electronic and power amplifier technologies, it outputs highly stable current & voltage with smooth waveforms and precision up to 0.1%, delivering excellent stability.
- Equipped with an industrial-grade 10-inch OLED touch screen for operation & display, featuring a user-friendly human-machine interface for easy operation and rapid testing.
- Built-in overheating and overload protection functions to guarantee safety for both operators and tested equipment.
Technical Specifications
| Parameter Item | Specification |
|---|---|
| Power Supply | DC 16.8V dedicated adapter, built-in rechargeable lithium battery |
| Lithium Battery Capacity | 11200mAh |
| Voltage Output | 4 channels Phase voltage: 0~130V AC Line voltage: 0~250V AC |
| Rated Load Power | ≥30VA |
| Voltage Output Accuracy | Class 0.2 |
| Current Output | 3 channels, 0~15A, load power ≥30VA |
| Current Output Accuracy | Class 0.2 |
| Output Response Time | ＜100μs |
| Output Frequency Range | 10 ~ 1000Hz; Resolution: 0.001 Hz |
| Phase Adjustment | Range: ±360°, Error: ＜0.2°, Resolution: 0.1° |
| Voltage & Current Synchronization | ＜20μs |
| Maximum Time Measurement Range | 36000 s |
| Digital Input | 2 channels, compatible with 0~250VDC or dry contacts (auto identification) |
| Digital Output | 2 channels, non-polar electrically isolated dry contacts |
| Auxiliary DC Output | 1 channel, 110-220VDC, 0.5A |
| DC Small Signal Output | ±(0-5)V DC, ±(0-500)mV DC, ±(4-20)mA DC |
| Time Measuring Range | 1ms ~ 999.99s |
| Timing Accuracy | ±1ms (0.001~1s); ±0.1% (1~999.999s) |
| Communication Interfaces | 1 × USB port, 1 × Ethernet port |
| Overall Dimensions (H×W×D) | 310mm × 240mm × 80mm |
| Net Weight | ≤4.5kg |
Packing List: Portable Relay Test Set
| No. | Item Description | Qty | Unit | Remarks |
|---|---|---|---|---|
| 1 | Portable Relay Test Set Main Unit | 1 | Set | Core testing host |
| 2 | DC 16.8V Power Adapter & Charging Cable | 1 | Set | For battery charging & mains power supply |
| 3 | Full Set Voltage & Current Test Connection Cables | 1 | Set | Alligator clips, insulated test leads for secondary injection testing |
| 4 | Digital Input / Output Wiring Harness | 1 | Set | For trip contact signal connection |
| 5 | User Operation Manual (English Version) | 1 | Pc | Detailed operation & parameter guide |
| 6 | Factory Calibration Certificate | 1 | Pc | Metrology calibration document for power industry acceptance |
| 7 | Hard Shockproof Carrying Case | 1 | Pc | Portable storage for field transportation |
| 8 | Spare Fuse Kit | 1 | Pack | Consumable spare parts |
| 9 | Small Screwdriver Tool Kit | 1 | Set | For routine maintenance |
FAQ for Portable Relay Test Set
Q1: What is a Portable Relay Test Set used for?
A1: It is a handheld secondary injection test instrument. It simulates various power system faults to calibrate all kinds of protection relays, FTU/DTU/TTU terminals, widely used in substations, power plants and industrial electrical maintenance.
Q2: What types of protection functions can this tester verify?
A2: It supports overcurrent, distance protection, earth fault protection, underfrequency load shedding, undervoltage, synchronism check, reclosing and all common power distribution protection logics.
Q3: How long can the device work continuously on built-in battery?
A3: Equipped with 11200mAh lithium battery, continuous working time reaches more than 8 hours under normal testing conditions, suitable for all-day outdoor field work.
Q4: What is the output accuracy of voltage and current?
A4: Both voltage and current output accuracy are Class 0.2, waveform output is smooth and stable; output precision can stay within 0.1% for long-time testing.
Q5: Is frequency adjustable? What is the frequency range?
A5: Yes. Adjustable frequency range: 10Hz ~ 1000Hz, resolution up to 0.001Hz, meeting standard 50Hz/60Hz and special customized frequency testing demands.
Q6: Does it support 4-20mA small signal output?
A6: Sure. It provides DC small signals including ±5V, ±500mV and 4-20mA analog signals for auxiliary equipment calibration.
Q7: How to operate the tester conveniently?
A7: It adopts industrial 10-inch OLED touch screen with friendly human-machine interface. Manual test, state sequence, harmonic superposition and automatic ramp test are all available with simple tapping operations.
Q8: Can it automatically record relay trip time?
A8: Yes. Built-in high-precision timing module. Time measurement range: 1ms ~ 999.99s, timing accuracy is ±1ms for short time testing.
Q9: What communication ports are equipped?
A9: It comes with USB port and Ethernet port. You can connect to PC to export test data, save test reports and upgrade device firmware remotely.
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