Solid-sealed Pole Current & Voltage Combined Transformers
Derating
Solid-sealed pole current and voltage combination transformer is used in 10kV distribution network feeders and column switches, with a voltage level of (10-35) kV and a frequency of 50Hz.
The pole integrates the current transformer, voltage transformer, vacuum interrupter, and capacitive energy extraction device , adopts the APG process.The inner insulation is poured with epoxy resin into a solid sealing pole, and the outer insulation is hung with liquid silicone,highly integrate the first and second time. Meet the functional needs of power system metering, measurement, and protection.Equipped with digital module ADMU,The pole can output a digital signal through the module,Signal transmission to terminal equipment such as FTU is more stable and more accurate.The pole realizes the miniaturization, integration and digitalization of primary equipment.The peripheral structure of the equipment is simplified, the safe operation level of circuit breaker equipment is improved, and the operation and maintenance is more convenient.
Specifications
|
Description |
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| Rated maximum voltage [kV] | 25.8 | |
| Rated current [A] | 630 | |
| Operation | manual, automatic | |
| Frequency [Hz] | 50 / 60 | |
| Short time withstand current, 1sec [kA] | 12.5 | |
| Short circuit making current [kA peak] | 32.5 | |
| Basic impulse withstand voltage [kV crest] | 150 | |
| Power frequency withstand voltage, dry [kV] | 60 | |
| Power frequency withstand voltage, wet [kV] | 50 | |
| Control and operation function | RTU built- in or separate digital control | |
| Control | Operating voltage | 110-220Vac / 24Vdc |
| Ambient temperature | -25 to 70 °C | |
| Power frequency withstand voltage [kV] | 2 | |
| Basic impulse withstand voltage [kV crest] | 6 | |
| International standard | IEC 62271-103 | |
Dimensions in millimeters
Model meaning
Operating Conditions
Altitude:≤1000m
Ambient temperature: -40 ℃～+70 ℃
Dirt resistance rating：Ⅳ
Earthquake intensity：≤8 Degree
Wind speed: ≤35m/S
Schematic
Before installation and commissioning, this manual should be carefully read to understand the structure, characteristics and performance of this product before proceeding, and the corresponding protection and preventive measures must be considered in the work
■The transformer is not allowed to turn or be turned upside down during transportation and loading and unloading, and shockproof measures are required.
■After unpacking, please check whether the surface of the transformer is damaged, and whether the product nameplate and certificate of conformity are consistent with the real thing.
■When the sensor is under pressure, the base should be reliably grounded, and the output lead can be suspended, and short circuit is strictly prohibited.
■The transformer ground wire should be effectively grounded during installation.
■The sensor should be stored in a dry, ventilated, moisture-proof, shockproof and harmful gas invasion room, and long-term storage should be regularly checked whether the environment meets the requirements
Ordering Information
When ordering, please list the product model, main technical parameters (rated voltage, accurate level, rated secondary parameters) and quantity . if there are special requirements, please communicate with the company
