The HYG-225 kVA/225 kV series resonant voltage withstanding test device satisfies the AC withstanding test of 220 kV cable with a length of 70 m, test frequency of 30-300 Hz and test voltage of U < 216 kV.

Technical parameters of the system

Rated output voltage: 0-225 kV

Resonant voltage waveform: sine wave, waveform distortion rate less than 1.0%.

Maximum test current: 1A

Maximum test capacity: 225 kVA

Output frequency: 30-300 Hz

Working time: 60 minutes continuous working time under full power output

Quality factors: 30-90

Input power supply: single-phase 220V or three-phase 380V + 10%, 50Hz

Ambient temperature: - 15 + 40.

Relative humidity: <90RH%, no condensation condition

Altitude: <3500m

Noise: <50dB

System Execution Standards

GB50150-2006 Standard for Handover Test of Electrical Equipment in Electrical Installation Engineering

DL/T849.6-2004 "General Technical Conditions for Special Testing Instruments for Electric Power Equipment Part 6: High Voltage Resonance Testing Devices"

JB/T9641-1999 "Test Transformer"

GB10229 Reactor

GB/T.311-1997 Insulation and Coordination of High Voltage Transmission and Distribution Equipment

DL/T846-2004 General Technical Conditions for High Voltage Testing Equipment

GB4793-1984 Safety Requirements for Electronic Measuring Instruments

GB2900 Electrical Terminology 

GB4208 "Shell Protection Level"

GB191 "Packaging, Storage and Transportation Marks"

GB/T16927-1997 High Voltage Test Technology

Technical Specification and Performance of Major Components

1. 10 kVA/220V/380V 1 Frequency Conversion Power Control Box

1.1 Technical parameters

1.1.1 Input power supply: single-phase 220V or three-phase 380V + 10%, 50Hz.

1.1.2 Output voltage and current: 0-400V, maximum current 25A.

1.1.3 Output frequency: 0-300 Hz, frequency regulation fineness 0.1 Hz, instability less than 0.05%.

1.1.4 rated output capacity 10 kVA

1.1.5 Shape size and weight: 360 *230 *320mm; 18kg

1.2 Performance Characteristics

1.2.1 parameter setting: test voltage, withstand voltage time, test mode, test current, and other parameters can be set or selected.

1.2.2 Test mode: manual test mode and automatic test mode

A. Manual test mode: with boost, tuning (including manual and automatic), step-down (manual and automatic) functions.

B. Automatic test mode: After entering the test state, the main circuit is automatically tuned, boosted, timed, lowered, cut off and transferred to the test result interface.

1.2.3 Protection function and its information prompt: with high-voltage overvoltage, low-voltage overcurrent protection, as well as detuning protection, zero, discharge protection and other multiple protection functions.

1.2.4 Data storage function: test results preservation, review, etc.

A. Test results: After manual or automatic test, the detailed parameters of the test can be displayed in the test results interface. The parameters can be stored in memory, which is a non-volatile memory and can save 200 test records.

B. Data query: The saved experimental data can be displayed on the screen.

1.2.5 Automatic Voltage Regulating Function: According to the set test voltage or manual boost result, the system can automatically track and maintain stable test voltage, and the voltage stability can reach 1%.

1.2.6 FM range setting: FM range can be set to 20-300 Hz.

1.2.7 Overvoltage protection function: software overvoltage protection value, rich high-voltage overvoltage protection function, more security, effective protection of human beings, equipment and test products.

1.2.8 Over-current protection: Over-current protection value can be set manually; when the output current of the whole set of devices reaches the protection setting value, the whole set of devices can be automatically removed.

1.2.9 Breakdown Protection: It has the function of discharge or flashover protection. When flashover occurs on the high voltage side, the whole set of device is automatically removed. It will not cause harm to test equipment and human body, and the electronic components in the variable frequency power supply will not break down.

1.2.10 Power-off Protection: After the test power supply is cut off, the device can be quickly protected.

2. One 10 kVA/10 kV/0.2 kV/0.4 kV excitation transformer

Configuration features: High voltage, low current, short time and low voltage, high current and long time test samples are separately processed, and different tap excitation transformers are configured to ensure the maximum utilization rate and the lightest weight of excitation transformer.

2.1 Technical parameters

2.1.1 rated capacity: 10KA

2.1.2 Input Voltage: 0-400V

2.1.3 Output Voltage: 10KV

2.1.4 operating frequency range: 30-300 Hz

2.1.5 Working hours: 60 minutes

2.1.6 Shape size and weight: 360*280*360mm; 65kg

2.1.7 Scope of Application: Electrical Main Equipment Test and Cable Test

2.2 Performance Characteristics

2.2.1 Incentive becomes dry structure without oil leakage.

2.2.2 The high and low voltage windings and iron cores are equipped with electrostatic shielding layer, which is not only an excitation transformer, but also an isolation transformer.

2.2.3 Built-in overvoltage protection to prevent breakdown and counterattack.

3. High Voltage Resonant Reactor 45KA/45KV 5 Sets

3.1 Technical parameters

3.1.1 rated maximum operating voltage: 45kV (RMS)

3.1.2 rated maximum operating current: A (RMS)

3.1.3 Rated Capacity: 45KA

3.1.4 rated inductance: 100H

3.1.5 Frequency: 30-300 Hz

3.1.6 Working hours: 60 minutes

3.1.7 Shape size and weight: 300 *350mm; 40kg/platform

3.2 Performance Characteristics

3.2.1 High-voltage resonant reactor adopts vacuum epoxy pouring as a whole, with hydrophobic layer outside, good moisture-proof performance, insulation and heat-resistant grade F, which meets the requirements of national standard for dry-type reactor.

3.2.2 Reactor is portable, small in size and light in weight.

3.2.3 Reactor is equipped with anti-eddy current insulation base, which overlaps in groups when connected in series, so as to reduce the overall height, reduce labor intensity and enhance safety and stability.

4. Capacitor Voltage Divider 250 kV/500 pF 1

4.1 Technical parameters

4.1.1 Working Mode: Pure Capacitance

4.1.2 rated voltage: 250 kV RMS

4.1.3 Rated Capacitance: 500pF

4.1.4 Frequency: 30-300 Hz

4.1.5 Measurement error: <1.5%

4.1.6 Shape Size and Weight