GuangDong Heng AnShun Electrical Power Equipment Service Co., Ltd.
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Three Phases Induatrial Vacuum Circuit Breaker Matching With GW9 630A Hookstick Switch Vacuum Load Switch for Protection
Product Description:
The ZW8-12 automatic vacuum circuit breaker is a type of electrical switchgear commonly used in power transmission and distribution systems. It is designed to operate in outdoor environments and is rated for a maximum voltage of 12kV and a frequency of 50Hz.
The main function of the ZW8-12 circuit breaker is to interrupt the flow of electrical current in the event of an overload or short-circuit fault. This helps to protect the electrical equipment downstream from damage and prevent power outages.
The ZW8-12 circuit breaker is particularly suited for use in distribution systems for urban and rural power grids operating at 10kV. It is a mature and reliable product that has been widely used in the power industry for many years.
One of the key advantages of the ZW8-12 circuit breaker is its use of vacuum interrupters. Vacuum interrupters are highly efficient at interrupting electrical currents and are known for their long lifespan and low maintenance requirements. This makes the ZW8-12 circuit breaker a cost-effective and reliable solution for power distribution systems.
The GW9-10 hookstick switch is a portable, high-voltage electrical switch used to isolate electrical circuits for maintenance and repair purposes. It is typically used in medium to high voltage power transmission and distribution systems.
The Loadbuster Electrical Isolator is designed to be portable and can be easily transported to the location where it is needed. It is capable of handling high voltage levels, typically ranging from a few kilovolts to several hundred kilovolts.
The switch is used to isolate a section of the power system for maintenance or repair purposes. It has visual indicators that show whether the switch is open or closed, making it easier for operators to know the status of the circuit.
The Loadbuster Electrical Isolator can be used for a wide range of applications, including switching and isolating circuits, as well as for grounding and de-energizing equipment. It is designed with safety features to protect operators from electrical hazards, such as insulating materials that prevent accidental contact with live parts.
The switch is easy to use and requires minimal training to operate. It has interchangeable blades that can be easily replaced, allowing for greater flexibility and versatility.
Double effect of using when GW9-10 series isolator swich can be used with the vacuum circuit breakers!!
Feature:
Microcomputer protection function
1.It has a three-stage current protection function: fast trip, time-limited fast trip, and overcurrent protection.
2.Flexible setting of fast and slow timing characteristics.
3.Users can set protection values and delays.
Reclosing function
1.Up to three reclosing operations can be set.
2.Users can freely choose the number of reclosing operations and different reclosing intervals.
3.It has functions of acceleration before reclosure, acceleration after reclosure, and sequential coordination selection.
Network reconstruction function
1.Includes undervoltage trip lockout, automatic reclosing, short-time no reclosing, continuous no reclosing, undervoltage reclosing, automatic reset, short-time activation of standby protection value, and continuous activation of standby protection value.
2.Distributed intelligent control can be realized according to the pre-set function during ring network operation.
3.When a network fault occurs, it automatically clears the fault, isolates the fault area, transfers power automatically, and restores power to the non-faulty area.
Structure:
1.Vacuum Interrupter: The vacuum interrupter is the heart of the circuit breaker. It consists of a fixed contact and a movable contact sealed within a vacuum chamber. When the circuit breaker operates, the contacts separate, creating an arc. The vacuum interrupter's role is to extinguish the arc and provide reliable interruption of the current.
2.Operating Mechanism: The circuit breaker is equipped with an operating mechanism responsible for opening and closing the contacts. It may utilize various mechanisms such as a spring mechanism, hydraulic mechanism, or electromagnetic operating mechanism. The operating mechanism ensures smooth and reliable operation of the circuit breaker.
3.Insulating Enclosure: The circuit breaker is housed in an insulating enclosure, which provides protection against external factors like moisture, dust, and contaminants. The enclosure is typically made of high-quality insulating materials to maintain the required dielectric strength and insulation properties.
4.Control and Protection System: The ZW8-12 circuit breaker incorporates a control and protection system for monitoring and controlling its operation. This system includes various sensors, relays, and control devices to detect abnormal conditions, provide signal inputs, and initiate the opening or closing of the circuit breaker.
5.Connection Terminals: The circuit breaker has connection terminals for the incoming and outgoing electrical connections. These terminals allow for the connection of power cables or busbars, enabling the flow of current through the circuit breaker.
6.Auxiliary and Control Components: Additional auxiliary and control components may be present in the circuit breaker to enhance its functionality. These can include auxiliary switches, voltage transformers, current transformers, and other accessories necessary for monitoring, measuring, and controlling the electrical parameters.
Application
1.Power distribution: Outdoor vacuum circuit breakers are widely used in power distribution systems to switch and protect distribution transformers, feeders, and other equipment. They are commonly installed on outdoor poles, substations, and switchgear.
2.Utility-scale renewable energy: Outdoor vacuum circuit breakers are used in utility-scale renewable energy projects, such as wind and solar farms, to switch and protect inverters and other equipment.
3.Railway systems: Outdoor vacuum circuit breakers are used in railway systems, such as signaling systems and railway infrastructure, to switch and protect electrical equipment.
4.Mining operations: Outdoor vacuum circuit breakers are used in mining operations to switch and protect electrical equipment in harsh outdoor environments.
5.Oil and gas industry: Outdoor vacuum circuit breakers are used in the oil and gas industry to switch and protect electrical equipment, such as pumps, compressors, and pipelines.
Technical Parameter:
ZW8-12
| Serial No. | Parameter | Unit | Data | ||||||||
| 1 | Rated voltage | kV | 12 | ||||||||
| 2 | Rated insulation level | 1min Industrial frequency withstanding voltage | Dry Test | 42 | |||||||
| Wet Test | 34 | ||||||||||
| Lightning surge withstand voltage (Peak) | 75 | ||||||||||
| 3 | Rated Current | A | 630 | ||||||||
| 4 | Rated short-circuit breaking current | kA | 20 | ||||||||
| 5 | Rated short-circuit breaking current times | time | 30 | ||||||||
| 6 | Rated short-circuit switching current (peak) | kA | 50 | ||||||||
| 7 | Rated peak withstanding current | 50 | |||||||||
| 8 | Rated short time withstand current | 20 | |||||||||
| 9 | Rated short-circuit duration | S | 4 | ||||||||
| 10 | Breaking time (Separate excitation decoupling) | Max. operating voltage | ms | 15-50 | |||||||
| Rated operating voltage | 30-60 | ||||||||||
| Min. operating voltage | |||||||||||
| 11 | Closing time | 25-50 | |||||||||
| 12 | Full disconnection time | ≤100 | |||||||||
| 13 | Arc burning time | ≤20 | |||||||||
| 14 | Mechanical lifetime | time | 10000 | ||||||||
| 15 | Closing function | J | 70 | ||||||||
| 16 | Rated input power of energy storage motor | W | ＜250 | ||||||||
| 17 | Rated operating voltage/ rated auxiliary circuit voltage | V | DC220 | ||||||||
| AC220 | |||||||||||
| 18 | Energy storage time at rated voltage | S | ＜10 | ||||||||
| 19 | Overcurrent decoupler | Rated Current | A | 5 | |||||||
| Accuracy of decoupling current | % | ±10 | |||||||||
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 | ||||||||||||
