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High -voltage dry magnetic control electrical resistance
As the national economy develops rapidly, the power load increases day by day, the grid structure increasingly becomes enormous and complicated and the reactive power demands of the system change frequently day by day, the traditional hurl-slices low voltage capacitor and reactor are hard to meet the voltage level control requirements, and the continuous reactive power adjustment capability of the parallel MCR is one of the effective means for solving this problem.
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高压磁控电抗器
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High-voltage dry series anti -tandem
The series connection between the dry-type high voltage series iron core reactor and the capacitor can effectively inhibit the ultraharmonics in the grid, limit switching inrush current and operation overvoltage, optimize the waveform of the grid system, and improve the power factor of the grid, so it is an important supporting device of reactive power compensation devices in the power system and plays a big role in maintaining the safety operation of the capacitor and other power devices.
High -voltage trunk parallel anti
High voltage parallel iron core reactor parallel in the power system is especially applicable to long-distance power transmission. It is used for compensating the distributed capacitive current in the compensation system and keeping the voltage regulation factor of the grid at a certain level.
High -voltage dry filtering electric anti -electrocomputer
The high voltage filter reactor is parallel to the filter capacitor in the high voltage filter device. When a certain resonant frequency is realized, the corresponding frequency of harmonic waves in the grid can be effectively absorbed to optimize the waveform of the grid.
High -voltage dry starting electric antibody
When starting the AC asynchronous motor under the rated voltage, the initial starting current is very big and usually several times of the rated current (5-7 times in normal cases). To reduce the starting current and not affect the grid, the AC asynchronous motor is usually started by reducing the voltage. Voltage is usually reduced by using the reactor or the auto-transformer. The start process of the AC motor is very short (from several seconds to two minutes in normal cases). After it is started, the reactor or auto-transformer used for reducing the voltage will be removed. This product is designed according to the start characteristics of high voltage asynchronous motor. The power of the motor is 220~1,400 kW.
High -voltage dry magnetic control electrical resistance
As the national economy develops rapidly, the power load increases day by day, the grid structure increasingly becomes enormous and complicated and the reactive power demands of the system change frequently day by day, the traditional hurl-slices low voltage capacitor and reactor are hard to meet the voltage level control requirements, and the continuous reactive power adjustment capability of the parallel MCR is one of the effective means for solving this problem.
High -voltage dry -type connecting electrical resistor
The SVG connecting reactor is set between the grid and the current transformer to filter the ultraharmonics in current.
Low -voltage trunk series anti -electrical antibody
When there are many harmonic sources in the low voltage grid, such as current rectifying and transformation devices, the ultraharmonics generated by them will severely endanger the safety operation of the main transformer and other devices. The dry-type iron core series reactor is widely applied to low voltage reactive power compensation cabinets. After series connection with the capacitor, it can effectively absorb the harmonic in the grid, optimize the grid waveform of the system, improve the power factor of the system and inhibit switching inrush current and operation overvoltage, by which the operation of the capacitor is protected effectively.
Low -voltage dry filtering electrical resistance
When there are many harmonic sources in the low voltage grid, such as current rectifying, transformation and frequency conversion devices, the ultraharmonics generated by them will severely endanger the safety operation of the main transformer and other devices in the system. The filter reactor is used in low voltage filter cabinet and connects to the filter capacitor in a series way. When a certain resonant frequency is realized, the corresponding frequency of harmonic waves in the grid can be effectively absorbed. It not only can effectively absorb harmonics in the grid, but also can improves the power factor of the system, playing a big role in maintaining the safety operation of the system.
Low -voltage dry -type in -line wire electrical antifiers
The frequency converter will generate large harmonics during working. Harmonics are mainly fifth, seventh, eleventh and thirteenth harmonics. The content of harmonics is very high. If the incoming line reactor is not applied, the service life of the frequency converter and other electric devices will be greatly shortened. When the harmonic interference is severe, some devices cannot run normally. After applying the incoming line reactor, the content of harmonics will be significantly reduced, the power factor of the grid will be improved, the safety operation of the frequency converter and other loads will be guaranteed, and it is ensured that other devices will not be interfered by harmonics; application of the outgoing line reactor can inactivate the steepness of the output voltage (switching frequency) of the frequency converter and reduce interference and impact of power elements in the inverter. And this series of reactors can effectively inhibit inrush current in the loop and protect the frequency converter and other elements in the loop from the current surge when switching on the load in an instant.
High voltage dry air core series reactor
After the high-voltage dry-type air-core series reactor is connected in series with the power capacitor, it can effectively suppress the high-order harmonics in the power grid, limit the closing inrush current and operating over-voltage, improve the system power grid waveform, increase the power factor of the power grid, and have a negative impact on power capacitors and other power equipment. It plays a major role in the safe operation of the power system and is an important supporting equipment for the reactive power compensation device of the power system.
High voltage Dryhollow shunt reactor
High-voltage shunt core reactor is connected in parallel in the power system and is especially suitable for long-distance power transmission. Its function is to compensate the distributed capacitance current in the system and ensure that the grid voltage regulation rate is at a certain level.
High voltage dry type air core reactor
High-voltage filter reactors are used in high-voltage filter devices. They are connected in series with filter capacitors and tuned to a certain resonant frequency. They can effectively absorb harmonics of corresponding frequencies in the power grid and improve the system power grid waveform.
The discharge coil is used to connect with high-voltage parallel capacitors in the power system, allowing the remaining charge of the capacitor bank to be quickly discharged after being cut off from the power system. Therefore, installing discharge coils is a necessary technical safety measure for parallel capacitors in substations, which can effectively prevent overvoltage and overcurrent that endanger equipment safety when the capacitor bank is closed again due to the fact that the capacitor still carries charge, and ensure the safety of maintenance personnel. It can be equipped with secondary windings for line monitoring, monitoring, and secondary protection.
Voltage transformer, abbreviated as PT, is an instrument that converts high voltage on the primary side into low voltage on the secondary side based on the principle of electromagnetic induction for measurement. This series of voltage transformers is a single-phase epoxy resin cast insulation fully enclosed product, suitable for power systems with rated frequencies of 50Hz or 60Hz and rated voltages of 3kV, 6kV, and 10kV where the neutral point is not effectively grounded. They are used for energy metering, voltage monitoring, and relay protection. This product complies with relevant national standards.
The principle of current transformer is an instrument that converts a large primary current into a small secondary current based on the principle of electromagnetic induction for measurement. This series of current transformers is a single epoxy resin cast insulated fully enclosed pillar type product, suitable for power systems with rated frequencies of 50Hz or 60Hz, rated voltages of 10kV and below, used for energy metering, current monitoring, and relay protection. This product complies with relevant national standards.
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