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HF-RT-208 Overvoltage Protection Tester
This portable overvoltage protection tester precisely calibrates various surge protection devices. It outputs standard test voltage signals to verify protection performance, widely used in substations, electrical factories and power engineering maintenance work.
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Overview of Overvoltage Protection Tester
The overvoltage protection tester is a dedicated precision testing instrument developed for surge protection devices and overvoltage protection components in power systems. It can output adjustable standard voltage waveforms to simulate lightning surges, transient overvoltage and grid abnormal voltage conditions.
By applying graded test voltages, the equipment comprehensively inspects key indicators including action threshold, response speed, discharge capacity and residual voltage of SPDs, lightning arresters and voltage limiters.
Compact and easy to operate, this device is widely adopted by power stations, substations, electrical manufacturers and EPC contractors for factory acceptance testing, periodic on-site maintenance and safety performance verification, effectively preventing grid equipment damage caused by lightning and transient overvoltage faults.
Product Features
- The instrument adopts waveform detection and Fourier transform to continuously monitor discharge current. Once discharge current is detected, it instantly records the real-time high voltage and cuts off the high-voltage power supply within 0.2 seconds. It delivers high test precision and supports automatic measurement conveniently.
- Equipped with a full-touch LCD screen and large full-graphic operation interface, all testing procedures are displayed clearly. Operators can master the device without professional training and finish the whole test process merely via simple touches.
- Extremely easy operation: all measurement procedures are automatically completed under the control of a microprocessor without manual intervention.
- Integrated all-in-one structure with built-in high-voltage power supply, convenient for field testing and simplifying on-site wiring work.
- High-voltage protection: it rapidly cuts off output via short-circuit mode when the test sample suffers short circuit, breakdown or high-voltage current fluctuation.
- Low-voltage protection: protection will be triggered against wrong 380V connection, mains fluctuation or sudden power failure to avoid induced overvoltage.
- Misoperation prevention: real-time voltage and current display; clearly separated high/low voltage terminals; slow voltage rise & fast voltage drop plus audible alarm reminders.
- Excellent shock resistance: unique anti-vibration structural design enables the device to withstand severe vibration and jolts during long-distance transportation without damage.
- High-voltage cable: made of high-withstand-voltage insulated wire. Keep the cable suspended during use to guarantee accurate measurement results.
Technical Specifications
| No. | Parameter Item | Specifications |
|---|---|---|
| 1 | Output Voltage & Current | Output Voltage: 0–30 kV (RMS) Output Current: 0–25 mA |
| 2 | Discharge Detection Method | Waveform detection combined with Fourier transform |
| 3 | Measurement Accuracy | Voltage: ±(2% of reading + 0.1) Current: ±(2% of reading + 0.1) |
| 4 | High-Voltage Cut-off Time | Less than 0.2 seconds |
| 5 | Resolution | Voltage resolution: 0.001 kV Current resolution: 0.001 mA |
| 6 | Input Power Supply | 180V ~ 270V AC, 50/60Hz ±1%, compatible with mains electricity or generator power supply |
| 7 | Communication Interface | Standard RS232 computer interface |
| 8 | Built-in Printer | Mini thermal printer |
| 9 | Ambient Working Conditions | Ambient temperature: -10°C ~ 50°C Relative humidity: ＜90% |
Packing List: Overvoltage Protection Tester
| No. | Item Name | Quantity | Unit | Notes |
|---|---|---|---|---|
| 1 | Overvoltage Protection Tester Main Unit | 1 | Set | Integrated high voltage host |
| 2 | High Voltage Insulated Test Cable | 1 | Set | For withstand voltage testing |
| 3 | Test Clips & Connecting Wires | 1 | Set | Auxiliary connection accessories |
| 4 | Power Cord | 1 | Pc | AC input power supply line |
| 5 | Thermal Printer Paper Rolls | 2 | Rolls | Spare printing consumables |
| 6 | English User Operation Manual | 1 | Copy | Complete operation & maintenance guide |
| 7 | Factory Calibration Certificate | 1 | Copy | Official metrological calibration document |
| 8 | Quality Inspection Report | 1 | Copy | Factory FAT test record |
| 9 | Shockproof Portable Carrying Case | 1 | Pc | For transportation & storage |
| 10 | Spare Fuses & Small Consumable Parts | 1 | Set | Replacement spare parts |
FAQ of Overvoltage Protection Tester
Q1: What is the main function of the overvoltage protection tester?
A1: It is specially used to test and calibrate overvoltage protection devices such as SPDs and arresters. It detects discharge voltage, response performance and safety parameters to ensure stable power system operation.
Q2: What technology does the tester adopt for detection?
A2: It applies waveform detection and Fourier transform technology to monitor discharge current in real time, capturing accurate high-voltage data and completing automatic measurement.
Q3: How fast can the instrument cut off high voltage?
A3: Once abnormal discharge current is detected, the system records voltage data and cuts off the high-voltage power supply within 0.2 seconds to protect the equipment.
Q4: Is the machine easy to operate for new users?
A4: Yes. Equipped with a full-touch graphical screen, all test processes are automatic under microprocessor control. No professional training is required for operation.
Q5: What protection functions does this tester have?
A5: It supports multi-protection including high-voltage short-circuit cutoff, low-voltage wrong connection protection, sudden power failure protection, and anti-misoperation alarm function.
Q6: Why should the high-voltage cable be suspended during testing?
A6: Suspending the high-voltage insulated cable effectively avoids interference and ensures high-precision test results during operation.
Q7: Is the device suitable for field outdoor testing?
A7: Yes. Integrated all-in-one design with built-in high-voltage power supply simplifies on-site wiring. It also features shock resistance for long-distance transport and field use.
Q8: Does the tester support data output and printing?
A8: It is equipped with a built-in mini thermal printer and standard RS232 interface, supporting real-time data printing and computer data transmission.
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