12kV Outdoor Hv High Voltage Vacuum Circuit
12kV Outdoor Hv High Voltage Vacuum Circuit
Ratings:voltage 12kV,current up to 630A,AC50HZ
Application:for the control and protection of substation and equipments.Making and breakingload current,overload current and short-circuit current under various operating status of electricnetwork.
Standard:IEC62271-100
Application
This outdoor column high voltage vacuum circuit breaker is an outdoor high voltage switchgear with rated voltage of 12kV and three-phase AC of 50h. It is mainly used to turn on and off the load current, overload current and short-circuit current of power system. It is suitable for protection and control of substation, industrial and mining enterprises and urban and rural distribution network, especially for places with frequent operation and automatic distribution network of regional network.
This product is matched with the controller, which can meet the requirements of distribution automation system and complete the traditional recloser function reliably and effectively. It adopts a mature box sealing structure and is filled with SF6 gas.
It has good sealing performance, so that it is not affected by the external environment.
It is a maintenance free product. The spring operating mechanism adopts direct acting chain drive and multi-stage tripping system, with high action reliability. It is a good product of column circuit breaker.
Specifications
Working Condition
1.Ambient air temperature:-40～+40℃
2.Altitude:≤3000m
3.Pollution level:IV
4.Wind speed:≤34m/s (Equalto 700Pa over cylindrical surface)
5.The external shocking and earthquake could be neglected.
※Note:Customized products for other special working conditions are available on your requirements.
Current Transformer configuration
Two standard current transformers are provided for customers to choose to use according totheir needs,the current transformer ratio is selected as 50/5～630/5.To improve the mechanicalstrength,the current transformer body is casted with epoxy resin as one whole body.Non standard current transformers can be also used on your requirements.
Inrush current controller can be used to improve the circuit breaker protection performance whenthe circuit breaker is with current transformer.
Voltage transformer configuration
Circuit breaker can be equipped with two external voltage transformer,variable ratio 10000/100/220V,capacity of 500VA,partial discharge is less than 20pC.Permanent magnetic actuator and controldevice operating power and low voltage component power supply components are provided bythe secondary voltage transformer.
Overall and Installation Dimension
Parameter
| number | Item | Unit | Data |
| 1 | Rated voltage | kV | 12 |
| 2 | Rated frequency | Hz | 50 |
| 3 | Rated current | A | 630 |
| 4 | Rated short-circuit breaking curent | kA | 25 |
| 5 | Peak value of rated closing current | kA | 50 |
| 6 | peak value of rated dynamic stability current | kA | 50 |
| 7 | 4sthermal stability current | kA | 25 |
| 8 | Rated operating sequence | open-0.3s-close open-180s-close open | |
| 9 | Rared energy storage motor voltage | V | Av220 |
| 10 | Maximum / minimum opening operating voltage | V | AC242/187 |
| 11 | Rated closing operating voltage | V | AC220 |
| 12 | Maximum and minimum closing operating voltage | V | AC264/143 |
| 13 | Rated opening operating voltage | V | AC220 |
| 14 | Maximum and minimum opening operating voltage | V | AC264/143 |
| 15 | asynchronous closing | ms | ≤2 |
| 16 | asynchronous opening | ms | ≤2 |
| 17 | S F6 gas rated pressure (gauge pressure) | Mpa | 0.01 |
| 18 | Rated short-circuit current breaking times | times | 30 |
| 19 | Mechanical life | times | 10000 |
Ordering Information
Pleaseindicate the following itemswhen order:
1.Type,name and quantity.
2.Rated operating voltage of the operating mechanism.
3.Variable raio,accuracy andquantity of the intenalcurrent transformer
4.Variable raio and quantityof the extemal voltage transformer.
※Customized productsare available peryour requirements.
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Product Category
hot-sale product
1.Ratings:voltage 12KV,current up to 1000A,AC50Hz
2.Application:for the control and protection of substation and equipments.Making and breakingload current,overload current and short-circuitcurrent under variousoperating status of electricnetwork.
3.Standard:IEC62271-100
Ratings:voltage 12kV,current up to 1250A,AC50HZ
Application:for the control and protection of substation and equipments.Making and breakingload current,overload current and short-circuit current under various operating status of electricnetwork.
Standard:IEC62271-100
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