HYFC series high voltage passive filter compensation device

Short Description:

Non-linear loads in industries such as steel, petrochemical, metallurgy, coal, and printing and dyeing generate a large number of harmonics during work, and the power factor is low, causing serious pollution to the power system and affecting the quality of power supply. The high-voltage passive filter compensation complete set is mainly composed of filter capacitors, filter reactors and high-pass resistors to form a single-tuned or high-pass filter channel, which has a good filtering effect on specific harmonics and harmonics above specific orders. At the same time, reactive power compensation is performed on the system to improve the power factor of the system, improve the voltage stability of the system, and ensure the safety and reliability of the power supply system. Because of its economy and practicality, simple structure, reliable operation and convenient maintenance, it has been widely used in high-voltage systems.

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Product Detail

Product Tags

product description

Application field

●High-power rectification device: such as electrolytic aluminum, intermediate frequency furnace, rolling mill, etc., semiconductor devices will generate characteristic harmonics related to their wiring methods during the process of turning off and turning on, and the harmonic current flowing into the system will affect transformers and motors, etc. normal work, causing its overload or even burning.
●Electric locomotives: At present, most of the electrified railway locomotives used in operation in various countries use AC 25~35kV power supply, and some substations provide two-phase power supply. This will inevitably lead to three-phase load asymmetry, thereby injecting harmonic current and negative sequence current into the power system together. Generally, filters with the same capacity are installed on the two power supply arms of the traction transformer.
●Loads with ferromagnetic devices: such as transformers, iron core reactors, etc., when they work in a saturated state, due to the nonlinearity of the magnetization curve, a certain number of harmonics will be generated, of which the third is the main one. When the system has parallel When compensating the capacitor, an appropriate ratio between the capacitive reactance of the capacitor and the inductive reactance of the system will cause serious amplification of the third harmonic.

product model

Model Description

Technical Parameters

●Rated voltage: 6kV~66kV
●Fundamental frequency: 50Hz
Tuning frequency: 2 times, 3 times, 4 times, 5 times, 7 times, 11 times, 13 times and above (design according to requirements)
●Working mode: continuous working
●Protection level: indoor type is IP20
Limit the voltage distortion rate of the power grid and the harmonic current injected into the power grid within the specified value of the standard GB/T14549-93 Power Quality Public Power Grid Harmonics
●Ambient temperature: -25°C~+40°C
●Relative air humidity: ≤90% (relative ambient temperature is 20°C~25°C)
●Altitude: no more than 1000m (higher than 1000m adopt plateau type)
●Environmental conditions: the installation site should be free from harmful dust, gas that corrodes metals, damages insulation, and other explosive substances
●Voltage fluctuation range: -10%~+10%
Power frequency variation: ≤1%
●Installation position: The inclination perpendicular to the ground level during installation shall not exceed 5°.
●Installation site: Indoor and outdoor use. If the applicable conditions of the installation exceed the above requirements, it will be designed separately with pictures.

Other parameters

Applicable conditions
●The device can be used indoors or outdoors.
●Substation with relatively stable user load
●The altitude of installation and operation should not exceed 1000 meters, and the altitude higher than 1000 meters must be specified when ordering.
Temperature category: -40/A, -25/B, relative humidity is 85%.
●The surrounding area does not contain gas or steam that can seriously corrode metals.
●No strong mechanical vibration
●The inclination to the vertical plane shall not exceed 5 degrees.
●If the operating conditions of the device exceed the above requirements, it shall be designed separately.

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