Three Phases AC Boundary Load Switch With Controller VCB 10kV 13kV Used With Outdoor Disconnector Switch
Product Description:
The ZW20-12(F) Outdoor Vacuum Circuit Breaker is a versatile and intelligent device that combines the functions of a vacuum breaker, vacuum load switch, recloser, and sectionalizer. It is designed for use in 10kV and 13kV distribution networks, specifically in city and rural power grids.
The main components of the ZW20-12(F) circuit breaker include a vacuum breaker, CH-40 controller, and an external voltage transformer. The vacuum breaker is responsible for interrupting and making electrical circuits, while the CH-40 controller provides intelligent protection and control functions. The external voltage transformer helps in accurate voltage measurement for control and monitoring purposes.
The GW9-10 outdoor disconnect switches are typically used in high voltage transmission and distribution systems to isolate sections of the network for maintenance or repair work. They are also used as a safety device to protect workers from electrical hazards, such as accidental contact with live parts of the system.
They are designed to handle high voltages and currents, and they are often installed in outdoor locations, where they are exposed to harsh environmental conditions, such as extreme temperatures, wind, rain, and dust. Therefore, they are built to withstand these conditions and are often made of durable materials such as steel or aluminum.
Toutdoor disconnect switches come in different types and configurations, depending on the specific application and requirements. For example, some VEIs are designed for indoor use, while others are suitable for outdoor use. Some are designed to operate manually, while others are automated and can be operated remotely.
In addition to their primary function of isolating circuits, VEIs also have other important features, such as providing a visual indication of their status (open or closed), and ensuring that the circuit is not energized when the isolator is open.
Double effect of using when GW9-10 series isolator swich can be used with the vacuum circuit breakers.
Characteristics of the controller:
1.It can be equipped with a 485/232 communication interface, or achieve long-distance monitoring through fiber optics or wireless communication. After reclosing, it has an acceleration function: when the switch recloses due to a permanent fault.
2.When a permanent fault occurs, it automatically accelerates to trip.
3.Remote control/manual reclosing with acceleration to trip, and reclosing interlock: After the user repairs the line and restores power, if they forget to remove the grounding knife switch, it should accelerate to trip.
4.The delay time for reclosing can be adjusted for all three attempts.
5.The trip/reclosing circuit is designed to prevent false operation and has anti-reclosing functionality.
6.Zero-sequence current can differentiate between faults inside and outside the zone.
7.The remote control trip/reclosing adopts a design to prevent false operation.
Feature:
1.The ZW20-12(F) automatic vacuum circuit breaker demonstrates a robust ability to withstand pollution. It is designed to resist the effects of environmental contaminants, ensuring reliable performance even in polluted conditions. It also exhibits high and low-temperature resistance, enabling operation in a wide range of temperature environments. Additionally, the circuit breaker poses no combustion or explosion hazards, enhancing overall safety.
2.Featuring a fully enclosed structure, the circuit breaker is filled with SF6 gas within the enclosure. This design provides excellent sealing performance, making it suitable for deployment in high-temperature and humid areas. The sealed enclosure protects internal components from external elements, ensuring optimal performance and longevity.
3.The circuit breaker comes equipped with a current transformer (CT) that outputs current to the intelligent controller for information analysis. The transformation ratio of the CT is adjustable, allowing for flexibility in configuring the system. The connection terminals can be easily connected to the corresponding terminal sockets, facilitating convenient installation and maintenance processes.
4.The operating mechanism of the circuit breaker is innovative and simple, resulting in a compact size and lightweight construction. This design ensures safe and reliable operation, minimizing the risk of malfunction or failure. The compact size also contributes to space-saving installation and ease of handling.
5.The outer casing of the circuit breaker features conspicuous indicators for "energy storage," "open," and "close" states. These indicators provide clear visual cues, enabling easy identification of the operational status of the circuit breaker. This visual feedback enhances operational efficiency and ensures accurate monitoring of the circuit breaker's state.
Structure:
1.The microcomputer-based relay protection and monitoring device serves as the controller for the circuit breaker system. It utilizes advanced microcomputer technology to provide precise and efficient relay protection and monitoring functions.
2.The controller is designed with robust weather resistance, allowing it to withstand various environmental conditions. It is also equipped with protection against condensation, ensuring reliable operation even in humid or damp environments.
3.To establish a secure and dependable connection, the controller is linked to the switch body using aviation connectors. These connectors offer a high level of stability and durability, ensuring proper communication and functionality between the controller and the switch.
4.The controller boasts excellent connection reliability, minimizing the risk of signal loss or disruption. It maintains a high protection level, safeguarding the integrity and accuracy of the relay protection and monitoring system.
Condition:
1.Altitude:2000 meters
2.Ambient temperature:outdoors -30℃~+55℃
The highest annual average temperature is 20℃
Maximum daily average temperature is 30℃
3.Relative humidity:95%(25℃)
4.Seismic capacity:ground level acceleration 0.3g
Ground vertical acceleration 0.15g
While acting for three sine waves
Safety factor 1.67
5.Seismic intensity:7degrees
6. Maximum daily temperature difference:25℃
7.Installation location:outdoor, 10kv overhead line user responsibility demarcation point
8.Grounding method:Neutral point does not touch, the arc suppression coil grounding and low resistance grounding
Technical Parameters:
ZW20-12(F)
| Serial No. | Parameter | Unit | Data |
| 1 | Rated voltage | kV | 12 |
| 2 | Insulation level of Fracture | Working Frequency(Dry Test/Wet Test) | 48 |
| Voltage of Lightning Shock Test (Peak) | 85 |
| 3 | Level of Insulation to ground/phase to phase | Working Frequency | Dry Test | 42 |
| Wet Test | 34 |
| Voltage of Lightning Shock Test (Peak) | 75 |
| 4 | Rated Current | A | 630, 1250 |
| 5 | Rated short-circuit breaking current | kA | 16, 20, 25 |
| 6 | Rated short-circuit breaking current breaking times | times | 30 |
| 7 | Rated short-time withstanding current | kA | 16, 20, 25 |
| 8 | Rated short-circuit duration | S | 4 |
| 9 | Rated short-circuit closing current (peak) | kA | 40, 50, 63 |
| 10 | Rated peak withstanding current | kA | 40, 50, 63 |
| 11 | Mechanical lifetime | times | over 1000 |
| 12 | Opening rated current | 10000 |
| 13 | Net Weight | kg | 180 |
GW9-10
| Serial No. | Parameter | Unit | Data |
| 1 | Rated Voltage | kV | 12 |
| 2 | Rated Current | Model No. | (H)GW9-12(W)/630-20 | A | 630 |
| (H)GW9-12(W)/1000-20 | 1000 |
| (H)GW9-12(W)/1250-31.5 | 1250 |
| 3 | 4s Short-time withstanding current | Model No. | (H)GW9-12(W)/630-20 | kA | 50 |
| (H)GW9-12(W)/1000-20 | 50 |
| (H)GW9-12(W)/1250-31.5 | 80 |
| 4 | Rated Insulation Level | Lightning surge withstand voltage(peak) | Polar-to-Earth
(Positive & Negative) | kV | 75 |
Interfracture
(Positive & Negative) | 85 |
Industrial frequency withstand voltage
(1 min)
(Effective value) | Dry Test/Wet Test | Polar-to-Earth | 42(Dry)
34(Wet) |
| Interfracture | 48(Dry) |
| 48(Dry) |
48(Dry)
40(Wet) |
| 5 | Main Circuit Resistance | μ Ω | 630 |
| 1000 |
| 1250 |
| 6 | Mechanical Life Time | times | 50 |
| 50 |
| 80 |
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Three Phases AC Boundary Load Switch With Controller VCB 10kV 13kV Used With Outdoor Disconnector Switch Images
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