Baoding Beidian Electric Technology Co

With the widespread application of power electronics technology, high-order harmonics generated by non-linear loads in modern industrial and mining enterprises enter the power system, causing power supply voltage waveform distortion, reducing power quality, compensating capacitor banks being unable to be put into operation, and accelerating damage to equipment in power-consuming enterprises. , the interest rate of electricity usage is reduced and electricity energy is wasted. Equipment Introduction
- type filter compensation device is mainly used in high voltage (,,.,3) power systems that require harmonic control to compensate for reactive power. Such as: ◆Electric arc furnace, intermediate frequency furnace ◆Rectifier inverter frequency conversion device ◆Semiconductor converter ◆DC transmission equipment rolling mill, elevator, etc.) ◆Rectifier electrolysis equipment ◆Electrified railway, etc. The device uses an appropriate combination of filter reactors, filter capacitors, discharge coils and non-inductive resistors to form a tuned filter circuit (single tuned filter circuit, high pass filter circuit). The single tuned filter circuit filters out the characteristic harmonics of the power grid and can completely eliminate the harmonics. Or most of the absorption reduces the distortion of the system voltage. For the fundamental frequency, the device can provide reactive power to the system to improve the power factor and achieve the effect of reactive power compensation. The high-pass filter circuit has a wide frequency range above a certain frequency and is used to absorb several higher-frequency harmonics to achieve a filtering effect while compensating for reactive power and reducing voltage distortion. The device is connected in parallel with the load power system. In the actual design, the design is based on the composition, size and reactive power demand of the harmonic current. Through accurate simulation and calculation, the filter device provides a low-impedance channel to the harmonics. A single harmonic loop and a high-pass filter loop can be used to form a filtering system to filter out the harmonic components in the system while meeting the requirements for reactive power compensation.
Main features
The main parameters of the device are set based on the user's power distribution equipment parameters and usage conditions, through actual harmonic measurements and computer simulation calculations, to ensure the best economic and technical performance of the device.
, equipped with a harmonic controller, so that the device can automatically adjust its working status as the load changes, maintain the optimal working point, and also ensure that the power factor of the compensated equipment is greater than.
The filter capacitor bank is composed of multiple capacitor units. A single filter capacitor adopts a single-phase structure for phase-separated tuning. The filter capacitor uses a full-film composite dielectric, which has the characteristics of small size, low loss and low operating temperature.
The filter reactor adopts a single-phase dry air-core structure, and the inductance value is continuously adjustable. The reactor can be installed horizontally in a straight or vertical shape.
The structure of the complete set of filtering devices is flexible and can be cabinet-type or frame-type. When the frame-type structure is adopted, the entire set of devices is isolated by a fence.
The filter device is designed with two control modes: manual and automatic, making the operation easy and safe.
According to user system requirements, it can effectively filter out high-order harmonics of the power grid, compensate for reactive power, and improve voltage quality.
The filter compensation branch is made strictly according to the technical conditions to ensure the stability, reliability and long-term operation of the device.
Usage environment
, Installation location: indoors
, Ambient temperature -℃～+℃
Relative humidity: no more than (relative ambient temperature is ℃～℃)
, Altitude: no more than meters (users who exceed meters must specify when ordering)
, Environmental requirements: The ground inclination is less than 10 degrees, no explosive dust, no corrosive and insulation-destroying gases, no severe hits and vibrations.