| Customization: | Available |
|---|---|
| After-sales Service: | 1year |
| Warranty: | 1year |
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| Product Name | Variable Frequency Series Resonance Test Set |
| Transformer class | 35kV~220kV |
| Output frequency | 30 -300Hz. |
| Resonant voltage waveform | sine wave, THD ≤ 1% |
| Full load working time | >60min |
| Quality factor | load ≥ 30,MAX |
| Protection | Over Current Protection Over Voltage Protection Arc Protection |
| relative humidity | ≤90%RH |
| Applicable operating height | ≤2500m |
| Warranty | 1 Year |
| Product Keywords | withstand test device,dielectric withstand test,ac dc withstand test |
I. Features
1. The device has protection functions such as overvoltage, overcurrent, zero start, system detuning (flashover), etc. The overvoltage and overcurrent protection value can be set according to the user's needs, and the flashover protection action can be recorded when the sample flashovers The value of flashover voltage for test analysis.
2. The weight of the whole device is very light, which is easy to use on site.
3. The device has three working modes, which are convenient for users to choose flexibly according to the on-site situation and improve the test speed.
The working modes are: automatic mode, manual mode, automatic tuning manual boost mode.
4. Data can be stored and printed in different places. The stored data number is a number, which is convenient for users to identify and find.
5. When the device automatically sweeps the frequency, the starting point of the frequency can be set arbitrarily within the specified range, and the sweep direction can be selected upwards or downwards. At the same time, the large LCD screen displays the scanning curve, which is convenient for the user to intuitively understand whether the resonance point is found.
6. The DSP platform technology is adopted, which can easily add or remove functions and upgrades according to user needs, and also makes the man-machine exchange interface more user-friendly.
II. Technical Index
1. Rated voltage:
50kV---satisfy the AC withstand voltage test of 10kV cable; working frequency: 30-300Hz, test voltage does not exceed 22kV, test time 5min.
200kV---satisfies the AC withstand voltage test of 66kV switch; working frequency: 30-300Hz, test voltage does not exceed 185kV, test time 1min.
150kV---satisfies the AC withstand voltage test of 66kV main transformer; working frequency: 45-65Hz, test voltage does not exceed 112kV, test time 1min.
2. Distortion rate of output voltage waveform:<1.0%
3. Allow continuous working time: 60 minutes of one-time work under rated conditions;
4. The quality factor of the device itself: Q>50
5. GIS, switch, etc. test quality factor at full load: Q>20 (related to load)
6. Input power: three-phase 380V or single-phase 220V
7. Frequency adjustment range: 30Hz~300Hz
8. System measurement accuracy: 1.5%
9. The device has protection functions such as overvoltage, overcurrent, and zero start
III. Technical Parameters
1. One inverter power supply:
Rated power: 10kW;
Input voltage: three-phase 380V or single-phase 220V±5% 50Hz
Output voltage: 0~400V adjustable
Output voltage frequency: 30~300Hz
0.1Hz step adjustable
Frequency instability≤0.02%
Output current: 0~25A
2. High voltage reactor (four sets in total):
Rated working voltage: 50kV
Rated working current: 1A
Rated inductance: 115H
Continuous working time: 60min
Temperature rise: less than 65K
Working frequency: 30~300Hz
3. Excitation transformer (one set):
Rated capacity: 10kVA
Input voltage: 400V
Output voltage: 3/6/12kV
Output current: 3.3/1.7/0.8A
4. One capacitor divider:
Own electric capacity: 600pF
Rated voltage: 200kV
Working frequency: 30~300Hz
Uncertainty: 1.5%
Rated voltage: 200kV/600pF
5. One compensation reactor:
Own electric capacity: 8000pF
Rated voltage: 120kV
Working frequency: 30~300Hz
Uncertainty: 1.5%
Rated voltage: 120kV/8000pF
6. One set of test line.
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