Automatic Recloser Electrical Sectionlizer ZW20-12(F) Vacuum Circuit Breaker With GW9 Outdoor Group Disconnect Switches
Product Description:
ZW20-12(F) vacuum circuit breaker is three phase AC 50Hz outdoor HV switchgear is mainly used for rural and urban 10 kV outdoor distribution network, as a separate and combined load current, overload current, short circuit current and other similar places.
Its whole structure is a three-phase common box type, which is composed of an operating mechanism, a conductive circuit, an insulating system, a sealing element and a shell.
And it is supporting the corresponding intelligent remote terminals to meet the application needs of distribution automation.
· ZW20-12 (Z) Outdoor Intelligent High Voltage AC True Air Breaker with GSM Short Message Function
· Combination with dividing switch controller ZW20-12 (F) Outdoor dividing high voltage AC true air breaker.
The GW9-10 outdoor disconnector switch is a type of portable device used for isolating and grounding electrical distribution lines for maintenance, repair, or emergency purposes. It is a versatile tool that can be used in a variety of applications, including overhead distribution lines, substations, and industrial facilities.
The outdoor disconnector switch is designed to be operated by a single person, making it easy to use and maneuver. It consists of a telescoping fiberglass pole, which can be extended to reach the electrical equipment, and a set of interchangeable attachments, which allow the user to perform a variety of tasks, such as opening or closing switches and grounding lines.
The outdoor disconnector switch is designed to provide a visible break in the electrical circuit, which helps protect against accidental contact with energized equipment. It is also designed to withstand harsh environmental conditions, such as high winds, rain, and snow, making it suitable for use in outdoor environments.
Double effect of using when GW9-10 series isolator swich can be used with the vacuum circuit breakers.
Characteristics of the controller:
1. With 485 / 232 communication interface, or through optical fiber, wireless remote monitoring; Acceleration function after reclosing: when the switch is heavy
2. In case of permanent failure, automatic acceleration tripping;
3. Remote control / manual closing to accelerate the trip, and lock the recloser: the user repairs the line after the power, if forget to remove the grounding switch
Tripping should be accelerated;
4. Three reclosing delay time can be adjusted;
The trip-closing circuit adopts the design of anti-misoperation, and has the function of anti-tripping.
5. Zero-sequence current can distinguish in-region faults from out-of-region faults.
6. The remote control switch is designed to prevent misoperation.
Feature:
1.Vacuum Interruption Technology: The ZW20-12 circuit breaker utilizes vacuum interrupters as the arc extinguishing medium. Vacuum interrupters are highly effective in quenching arcs and provide excellent dielectric strength, ensuring reliable interruption of high voltage currents.
2.Outdoor Application: This circuit breaker is specifically designed for outdoor installation, making it suitable for use in substations, distribution networks, and other outdoor electrical systems. It is built to withstand harsh environmental conditions, including temperature variations, humidity, and exposure to dust, rain, and UV radiation.
3.High Voltage Rating: The ZW20-12 circuit breaker is designed for high voltage applications, with a rated voltage of 12 kilovolts (kV). It can handle electrical systems operating at this voltage level.
4.Compact Design: The circuit breaker features a compact design, allowing for easier installation and integration into outdoor switchgear or substation arrangements. The compact size also facilitates space-saving and efficient use of available installation area.
5.Reliable Operation: The ZW20-12 circuit breaker is engineered for reliable operation. It incorporates high-quality materials, precision-engineered components, and advanced mechanisms to ensure stable and efficient switching operations, minimizing the risk of faults or failures.
6.Safety Features: The circuit breaker is equipped with safety features to enhance operator and system safety. These may include interlocking mechanisms to prevent incorrect operation, mechanical and electrical indicators to provide status information, and safety shutters to prevent accidental contact with live parts.
Collocation:
The relation between the outdoor vacuum circuit breaker and the outdoor high-voltage disconnect isolator lies in their complementary roles in the electrical system:
Circuit Interruption: The vacuum circuit breaker is responsible for interrupting the electrical circuit during normal operation or in the event of a fault. It acts as the primary means of breaking the current flow. In contrast, the disconnect isolator is used for isolating the circuit from the power source during maintenance or repair activities. It provides an additional layer of safety by physically opening the circuit.
Coordination: In high-voltage power systems, the vacuum circuit breaker and the disconnect isolator are often coordinated to work together. The circuit breaker is responsible for detecting faults and tripping to interrupt the current flow, while the disconnect isolator is used to physically isolate the circuit and provide a visible indication of the disconnection.
Safety and Maintenance: The disconnect isolator plays a crucial role in ensuring the safety of maintenance personnel. Before any maintenance work can be performed on the electrical equipment, the disconnect isolator is operated to open the circuit and provide a visible air gap. This ensures that the equipment is de-energized and safe to work on. The vacuum circuit breaker, on the other hand, protects the system during normal operation and in the event of faults.
Introduction of GW9 series outdoor disconnector switch►
https://www.maoyt.com/test/hvdisconnectorswitch.com/sale-40073011-outdoor-high-voltage-overhead-disconnect-switch-used-with-electrical-vacuum-circuit-breakers-creamic.html
Applicaiton
1.Substations: The ZW20-12 circuit breaker is often employed in outdoor substations as a part of the primary distribution system. It is used to protect and control electrical equipment such as transformers, generators, and busbars.
2.Distribution Networks: This circuit breaker is suitable for outdoor distribution networks where high voltage power is distributed to multiple locations. It helps to ensure reliable and safe operation by interrupting fault currents and isolating faulty sections of the network.
3.Industrial Facilities: The ZW20-12 circuit breaker is utilized in outdoor high voltage systems found in industrial facilities such as factories, manufacturing plants, and mining operations. It provides protection for critical electrical equipment and ensures the continuity of power supply.
4.Renewable Energy Installations: In outdoor renewable energy installations like wind farms or solar power plants, the ZW20-12 circuit breaker is employed to protect the electrical infrastructure and switch the power generated by renewable sources.
5.Railways: This circuit breaker is used in outdoor high voltage systems associated with railway electrification. It ensures the safe and reliable supply of power to railway systems, including overhead catenary systems and traction substations.
6.Oil and Gas Industry: The ZW20-12 circuit breaker finds application in outdoor high voltage systems within the oil and gas industry. It is used to protect electrical equipment and control power distribution in offshore platforms, refineries, and pumping stations.
7.Infrastructure Projects: The ZW20-12 circuit breaker is suitable for various outdoor infrastructure projects such as airports, seaports, and power transmission lines. It plays a crucial role in protecting critical infrastructure and ensuring uninterrupted power supply.
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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Automatic Recloser Electrical Sectionlizer ZW20-12(F) Vacuum Circuit Breaker With GW9 Outdoor Group Disconnect Switches Images
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