Arc-suppression Coil
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Production market
The main overseas markets for sales are Southeast Asian countries, developing countries such as Africa and South America. We currently have agents in Uzbekistan, Vietnam, and Thailand.
The arc suppression coil is an electrical component used in power systems. Its main function is to eliminate the arc generated when the high-voltage switch is turned off. The arc suppression coil is usually made of copper wire and equipped with a magnetic core.,which extinguishes the arc by generating a high voltage pulse. The core working principle of the arc suppression coil is to use the self-inductance characteristics to generate a magnetic field when the arc is formed, thereby extinguishing the arc and protecting the safety of switch contacts and power system equipment. The arc suppression coil is also used to form an arc suppression system. It is connected between the neutral point of the transformer or generator and the earth to compensate for the current during a ground fault and reduce the fault current so that it is not enough to maintain the arc. Quickly eliminate ground faults.
Good heat dissipation performance
Arc suppression coils are usually made of high-quality materials and have good heat dissipation properties, which can effectively prevent the accumulation of heat and extend the service life of the components.
Simple structure
The structure of the arc suppression coil is relatively simple, easy to install and disassemble, and does not require complex control system support. This makes it a very practical component with a wide range of applications.
Takes up little space
Because the arc suppression coil has a simple structure, it is usually smaller in size and takes up less space. This allows it to be widely used in electrical equipment with small spaces.
long lasting
Arc suppression coils are usually made of high-quality materials and undergo strict technology and workmanship. They have a long service life and a low failure rate. This makes it one of the most reliable components in electrical equipment.
Good arc resistance
The arc suppression coil has good arc resistance and can effectively control the generation of sparks in electrical equipment and maintain stable operation of the circuit.
High voltage substation
Arc suppression coils are used to protect circuit breakers and isolating switches in high-voltage substations. When a circuit breaker is opened or closed, there is a possibility of arcing. Arc suppression coils quickly eliminate these arcs, protecting equipment from damage.
Transmission lines
Arc suppression coils can be used to protect disconnectors and breakers in power transmission lines. These devices may generate arcs when disconnecting lines. The arc suppression coil can quickly eliminate these arcs and protect the equipment.
Electric power distribution system
Arc suppression coils can be used to protect circuit breakers and isolating switches in low-voltage power distribution systems. In low voltage systems, arcing can cause severe equipment damage and fires. Arc suppression coils eliminate these arcs, protecting equipment and personnel.
Industrial automation system
In industrial automation systems, arc suppression coils can be used to protect motors, frequency converters and other electrical equipment. These devices may generate arcs when they malfunction, and arc suppression coils can quickly eliminate these arcs to prevent equipment damage and production interruptions.
Ship power system
Arc suppression coils are also widely used in ship power systems to protect electrical equipment in ships.
Water pump type arc suppression coil
Integrated by AC motor, centrifugal pump and rotor. Its working principle is to generate electromagnetic force through water cooling and pumping water flow to force arc extinguishing of the circuit. This kind of arc suppression coil is suitable for small and medium capacity circuits.
Gas arc suppression coil
An arc suppression coil that injects high-pressure gas onto the arc to extinguish it and produce forced cooling. This kind of arc suppression coil can eliminate large currents and has the advantages of good pollution resistance and simple structure. It is often used in large-capacity circuits such as power plants and substations.
Oil pump type arc suppression coil
It consists of an oil pump, an oil storage tank, a nozzle and other components. Its main function is to spray high-pressure oil onto the arc to extinguish it and produce forced cooling. Compared with other arc-extinguishing coils, oil-pump arc-extinguishing coils can eliminate larger currents, start faster, and have good resistance to pollution and moisture. They are widely used in various power systems.
Core
The main function of the iron core is to concentrate the magnetic field so that the arc can be extinguished quickly and stably. Therefore, the cross-sectional area of the iron core needs to maintain a certain ratio to balance the electromagnetic force and the arc deflection force, so as to achieve the purpose of suppressing the arc.
Winding
The windings usually use high-temperature superconducting copper wires, which better solves the problem of thermal exposure. The current intensity of the winding needs to be adjusted according to the magnetic field required by the arc suppression coil.
Shell
The shell is the protective layer of the arc suppression coil and must have certain high pressure resistance, wear resistance and oxidation resistance. At the same time, the structure of the shell must be tight to ensure the function of protecting the core and windings.
Soot blower
Soot blowers usually use compressed air to remove foreign matter and arc residues on the core surface to prevent these substances from affecting the arc extinguishing effect.
Short-circuit contacts and tripping contacts
Short-circuit contacts and tripping contacts are usually made of high-temperature alloy materials to ensure normal operation under high temperature and high pressure. The short-circuit contact is mainly responsible for contacting the short-circuit current, while the trip contact is responsible for disconnecting the circuit when the current conduction is stopped.
Need to determine the power of arc suppression coil
The power of the arc suppression coil should be determined based on the rated load power of the circuit to be controlled. Generally speaking, the power of the coil should be greater than or equal to the power of the circuit to be controlled to ensure that the coil can work properly.
Rated current and rated voltage
Secondly, the rated current and rated voltage of the arc suppression coil need to be determined. The rated current refers to the maximum current that the coil can withstand, and the rated voltage refers to the maximum voltage that the coil can withstand. When selecting an arc suppression coil, the rated current and voltage of the coil should be determined based on the rated current and rated voltage of the circuit to be controlled to ensure that the coil can work properly and can withstand the current and voltage of the circuit to be controlled.
Heat resistance
Again, consider the heat resistance of the arc suppression coil. The arc suppression coil will generate heat during operation, so it is necessary to choose a coil with better heat resistance. Generally speaking, the heat-resistant temperature of the coil should be higher than the operating temperature of the circuit to be controlled to ensure that the coil can work normally at normal operating temperature.
Installation method
After that, the installation method of the arc suppression coil needs to be considered. There are many ways to install arc suppression coils, including plug-in, patch, welding, etc. Choosing a suitable installation method should be determined based on the actual situation. Taking into account the layout of the circuit and the characteristics of the installation environment, choose a coil installation method that is more convenient for installation and wiring.
How arc Arc-Suppression Coil works
The generation of arcs
When the current in the power system is interrupted, an arc will be generated in the disconnected circuit. this It is because when the current is interrupted, the current will continue to flow between the disconnection points, forming an arc.
The function of arc suppression coil
The arc suppression coil controls and eliminates the arc by generating a magnetic field. It is composed of a set of lines It is composed of a circle and an iron core.
Magnetic field generation
After the arc suppression coil is energized, a magnetic field is generated by the current flowing through the coil. This magnetic field will Interacting with the magnetic field of the arc.
Magnetic field control
The interaction between the magnetic field of the arc suppression coil and the magnetic field of the arc controls the movement of the arc.By adjusting the current and magnetic field strength of the arc suppression coil, the position and movement speed of the arc can be controlled.
Elimination of arc
Under the magnetic field of the arc suppression coil, the arc will be subjected to force, causing it to gradually deviate Circuit, and ultimately extinguished.
Protection circuit
The operation of the arc suppression coil can effectively protect the power system, prevent the propagation of arcs and interference with equipment Damaged spare parts. It can quickly remove arcs from the circuit, ensuring the safe operation of the power system.
● When the arc suppression coil device is switched from the neutral point of one transformer to another during operation, the arc suppression coil must be disconnected first and then switched. It is not allowed to connect the neutral points of two transformers to one arc suppression coil at the same time. When the main transformer and arc-extinguishing coil device are out of power at the same time, the isolation switch of the arc-extinguishing coil should be opened first, and then the main transformer should be stopped, and the opposite should be done when transmitting power.
● When a single-phase grounding occurs in the system, it is prohibited to operate or manually adjust the arc suppression coil on this section of the bus. The manned substation should monitor and record the following data: the operation of the grounding transformer and arc suppression coil, the operation of the damping resistance box; microcomputer Tuner display parameters: capacitance current, residual current, detuning degree, neutral point voltage and current, tap switch gear and tap switch operation times, etc., single-phase grounding start time and end time, single-phase grounding line and single-phase grounding Ground reasons, weather conditions.
● After the device parameters are set, records should be made to record the setting time, setting values, etc. for analysis and inquiry. If one of the following situations is discovered during the inspection, it should be reported to the dispatching and superior authorities. The arc suppression coil operates at a higher gear and is overcompensated, indicating that the total capacity margin of the arc suppression coil is small or no margin. There are abnormal noises from arc suppression coils, damping resistor boxes, and grounding transformers.
● The operating regulations for manually adjusting the arc suppression coil switching tap are to switch the arc suppression coil tap according to the tap position issued by the dispatcher on duty. Before switching the tap, it should be confirmed that there is no ground fault in the system, and then the isolating switch is used to switch off the tap. Turn on the arc suppression coil and install the ground wire before switching the tap and measuring the DC resistance; after switching the tap, check that the arc suppression coil conduction is qualified before putting the arc suppression coil into operation.
Zhejiang Nengrong Electric Power Equipment Co.,Ltd. was established in 2007 (formerly known as Yueqing Zhongrong Power Compensation Equipment Co., Ltd.). It is a high-tech enterprise that provides power system power quality monitoring and control, reactive power compensation, harmonic control, and power safety protection equipment as its core business. Since its establishment, we have always adhered to the concept of "energy conservation creates value, protection builds harmony" and are committed to providing high-quality products and comprehensive solutions for users in various fields to improve power quality, optimize control, save energy and reduce consumption, and protect power grid safety.
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FAQ
Q: What is the purpose of the arc suppression coil?
Q: What does arc suppression do?
Q: What is the purpose of the Petersen coil?
Q: What is arc suspension coil?
Q: How does arcing happen?
Q: What are the advantages of the Petersen coil?
Q: What is arc suppression reactor?
Q: How long should suspension coil last?
Q: What is a neutral grounding?
Q: What are most arcing faults begin as?
Q: Does arcing make a noise?
Q: What is arc suppression reactor?
Q: How does an arc suppression coil work?
Q: Why is arc suppression needed?
Q: What is importance of arc suppression coil grounding?
Q: What causes an earth fault?
Q: Which of the following grounding systems is also referred to as arc suppression coil grounding?
Q: What is arc suppression coil earthing?
Q: What are the advantages of coil earthing?
Q: What are the symptoms of a ground fault?
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