Audited Supplier
ZW20-12
High Voltage Circuit Breakers
Manual Type
Vacuum
Fixed
Circuit Breaker
Conventional Circuit Breaker, Overcurrent Protection
50Hz
12kv
630/1250A
10000(M2)Times
DGG
Export Box
China
8504311000
Product Description
Our factory
We are professional manufacturer of current transformer ,voltage transformer, Vacuum Circuit Breakers/Recloser,Isolation switches,Dropout Fuse Cut-out,Lightning Arresters,High and Low Voltage Cabinets,Metering Devices,Power Distribution Transformers etc.
General
Zw20-12F series outdoor high-voltage AC boundary vacuum circuit breaker (hereinafter referred to as "boundary circuit breaker") is an outdoor high-voltage switch with three-phase AC 50Hz and a rated voltage of 12kV. It is mainly composed of a vacuum circuit breaker body, distribution automation feeder terminal, voltage transformer, control cable, etc. The circuit breaker body is equipped with a vacuum arc extinguishing chamber, a current transformer, a zero-sequence current transformer, and other components.
The boundary breaker has a remote management mode, and the protection control function and communication function can be reliably judged. The detection boundary is used for control and protection in substations, industrial and mining enterprises, and urban and rural power grids. It is especially suitable for places requiring frequent operation and urban milliampere zero sequence current and interphase fault short circuit current, so as to automatically remove single-phase ground fault and interphase short circuit fault.
The boundary breaker adopts a vacuum arc extinguishing and SF6 gas-insulated box, which adopts foreign advanced gas sealing and is explosion-proof. The overall sealing performance of insulation structure technology is excellent. Its spring operating mechanism adopts a miniaturized design, which has excellent performance and is far more reliable than the domestic traditional spring operating mechanism.
The boundary breaker shall comply with the technical standards such as High Voltage AC Circuit Breaker (GB/T1984214), High Voltage Clearing Circuit Breaker (DL/T402-2016), Technical Conditions for Ordering 12kV 40.5kV High Voltage Vacuum Circuit Breaker (DL/T403-2000) and Remote Terminal of Distribution Automation System (DL/T721-2013).
Model And Meaning
Our Customer
Our customers are located all over the world.
Test Reports
All products have undergone professional testing and certification.
Photos of Product
We are professional manufacturer of current transformer ,voltage transformer, Vacuum Circuit Breakers/Recloser,Isolation switches,Dropout Fuse Cut-out,Lightning Arresters,High and Low Voltage Cabinets,Metering Devices,Power Distribution Transformers etc.
General
Zw20-12F series outdoor high-voltage AC boundary vacuum circuit breaker (hereinafter referred to as "boundary circuit breaker") is an outdoor high-voltage switch with three-phase AC 50Hz and a rated voltage of 12kV. It is mainly composed of a vacuum circuit breaker body, distribution automation feeder terminal, voltage transformer, control cable, etc. The circuit breaker body is equipped with a vacuum arc extinguishing chamber, a current transformer, a zero-sequence current transformer, and other components.
The boundary breaker has a remote management mode, and the protection control function and communication function can be reliably judged. The detection boundary is used for control and protection in substations, industrial and mining enterprises, and urban and rural power grids. It is especially suitable for places requiring frequent operation and urban milliampere zero sequence current and interphase fault short circuit current, so as to automatically remove single-phase ground fault and interphase short circuit fault.
The boundary breaker adopts a vacuum arc extinguishing and SF6 gas-insulated box, which adopts foreign advanced gas sealing and is explosion-proof. The overall sealing performance of insulation structure technology is excellent. Its spring operating mechanism adopts a miniaturized design, which has excellent performance and is far more reliable than the domestic traditional spring operating mechanism.
The boundary breaker shall comply with the technical standards such as High Voltage AC Circuit Breaker (GB/T1984214), High Voltage Clearing Circuit Breaker (DL/T402-2016), Technical Conditions for Ordering 12kV 40.5kV High Voltage Vacuum Circuit Breaker (DL/T403-2000) and Remote Terminal of Distribution Automation System (DL/T721-2013).
Model And Meaning
| TECHNICAL PARAMETERS | |||||
| No. | Item | Unit | Data | ||
| 1 | Rated frequency | Hz | 50 | ||
| 2 | Rated voltage | kV | 12 | ||
| 3 | Rated current | A | 630 | 1250 | |
| 4 | Rated short-time power frequency withstand voltage | Interphase, to earth(wet) | kV/min | 34/1 | |
| Interphase, to earth(dry) | 42/1 | ||||
| Break(dry) | 48/1 | ||||
| Secondary circuit to earth | 2/1 | ||||
| 5 | Rated lightning impulse withstand voltage | Interphase, to earth | kV | 75 | |
| Break | 85 | ||||
| 6 | Rated short-circuit breaking current(virtual value) | kA | 20 | 25 | |
| 7 | Rated short-circuit making current(peak) | 50 | 63 | ||
| 8 | Rated short-time withstand current and duration | kA/s | 20/4 | 25/4 | |
| 9 | Rated peak withstand current | kA | 50 | 63 | |
| 10 | Rated short-circuit breaking current breaking times | Times | 30(E2) | ||
| 11 | SF6 gas-rated gage pressure | MPa | 0 | ||
| 12 | Main circuit resistance | μΩ | ≤120 | ||
| 13 | Rated operating voltage and rated voltage of the auxiliary circuit | V | AC/DC220,DC48,DC24 | ||
| 14 | Mechanical life | Times | 10000(M2) | ||
| Note: If the altitude is over 1000m, the rated insulation level should be modified as appropriate. | |||||
Our Customer
Our customers are located all over the world.
Test Reports
All products have undergone professional testing and certification.
Photos of Product
