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Transformer manufacture , High Current Switch Impulse Current Generator
The impulse current generator simulates lightning overvoltage and switching overvoltage to conduct high current tests on HV apparatus for research labs and HV apparatus manufacturers.
【CDLH series】
The CDLH impulse current generator is featured by wide range of applicable voltage levels and versatility. It is mainly used to test the residual voltage and shunt of arrestors at medium and high voltages. It is also used for routine test of HV apparatus manufacturers.
Main features:
|
Product |
H type impulse current generator |
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Type |
CDLH |
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Structure |
H type |
1 steel frame consisting of 4 flanges and 2 external capacitors in parallel for each stage, multiple stage design for easy installation and reconfiguration, stable structure |
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Functions |
It is used to test residual voltage and shunt of arrestors at 35-110kV or 220kV voltage and more. |
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Advantages |
Good appearance |
As shown in the photo |
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Versatility |
Up to 16-circuit 220kV voltage on arrestors in shunt tests |
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Easy modulation |
Manually wire wound resistors , great flexibility and easy modulation |
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High synchronization rate |
Unique synchronization technology; synchronization range≥20%, malfunction rate≤1% |
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Ease of operation |
Resistors connected by spring contacts for easy and quick installation and reconfiguration; internal ladder and operating platform at every third stage for easy and safe operation |
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High output efficiency |
Lightning wave efficiency≥90% (idle); switching wave efficiency≥70% (approx. 3000pF total load) |
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Mobility |
Easy and stable displacement of apparatus with air cushion transport system(optional); already applied to 6000kV apparatus |
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Stable performance |
Long-time operation at a voltage lower than 80% of rated voltage |
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Performance |
LI |
Up to 2400kV |
|
SI |
Up to 1800kV |
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Current impulse |
8/20 μS, LI 30/80 μS, SI |
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The impulse current generator and the charging unit are integrated. |
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Symmetric bilateral charging unit |
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Charging unit with automatic grounding and polarity reversal (built-in) |
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Encapsulated spark gaps with filtered air-flow |
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Capacitor with safety grounding device |
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high voltage level, high capacity and high load |
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Leading technologies and performance |
Specifications:
|
Type |
Rated voltage(kV) |
Total energy(kJ) |
Capacitance (μ F) |
Stage voltage (kV) |
NO. of stages(n) |
Height(m) |
|
CDLH600kV |
600 |
70～210 |
0.071～0.21 |
200 |
3 |
3.6 |
|
CDLH1000kV |
1000 |
70～210 |
0.071～0.21 |
200 |
5 |
4.8 |
|
CDLH1200kV |
1200 |
80～240 |
0.063～0.188 |
200 |
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