Product overview
Capacitive voltage transformers are widely used in AC power systems for measurement, control, protection and high-frequency carrier communication.
Structural features
Capacitive voltage transformer consists of capacitive voltage divider and electromagnetic unit
The electromagnetic unit has a fully sealed structure. The box is equipped with medium-voltage transformers, compensation reactors, dampers, etc. The insulating oil is made of high-quality mineral oil, and the secondary wiring board is cast with epoxy casting or SMC material to effectively prevent leakage. . The accuracy of capacitive voltage transformers can be adjusted on site when the user needs it.
A capacitive voltage divider consists of a high voltage capacitor and a medium voltage capacitor. The capacitor has a fully sealed structure, and is composed of many identical capacitor elements connected in series inside and housed in an insulating shell. The solid dielectric material is a composite of high-quality polypropylene film and paper, the impregnating agent is high-quality synthetic insulating oil, and the capacitor has been fully dried and vacuum impregnated.
Use environmental conditions
1. Altitude: ≤2000m (products with altitudes exceeding 2000m are also available);
2. Maximum wind speed: 42m/s;
3. Ambient temperature: -40°C~+45°C;
4. Ice coating thickness: 10mm;
5. Pollution level: External insulation creepage ratio ≥25mm/kV or ≥31mm/kV;
6. Earthquake intensity: no more than 8 degrees;
7. System rated frequency: 50Hz;
8. Neutral point effective grounding system or neutral point non-effective grounding system.
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This series of voltage transformers can provide five-coil products according to customer requirements.
This type of transformer is a single-phase three-winding series insulation, outdoor installation, suitable for voltage supply, electric energy measurement and relay protection in 50Hz, 66kV neutral point non-effectively grounded systems.
This series of voltage transformers can provide five-coil products according to customer requirements.
Capacitive voltage transformers are widely used in AC power systems for measurement, control, protection and high-frequency carrier communication.
This series of voltage transformers can provide five-coil products according to customer requirements.
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