What kind of equipment and equipment to control the three-phase current imbalance is good?

The typical ABC three-phase current imbalance is a problem often encountered in agricultural networks. The reason why three-phase balance is to be maintained is that in a three-phase four-wire system, if the three-phase load is unevenly distributed (phase-to-neutral), a zero-sequence voltage will be generated to shift the zero point and reduce the voltage of one phase. The voltage of the other phase increases, increasing the voltage deviation. Similarly, unbalanced load between lines will cause voltage imbalance between lines and increase voltage deviation. The most common accident that may result in excessive voltage deviation is the burning of electrical equipment. Three-phase current imbalance protection device is good ?

In particular, with the various types of household appliances entering the home, the contradiction between three-phase current imbalance is particularly acute. In particular, a phase-to-phase short circuit and a short circuit between the phase and the neutral lead to a three-phase voltage and current imbalance. After the thirteenth five-year plan, the call for "three-phase imbalance in current management" in rural power grid reconstruction has become louder and louder. The unbalanced three-phase governance has entered the stage of large-scale planning and promotion from the pilot point. The general three-phase balancing device is proposed for single-phase and two-phase loads. Its realization is to distribute the single-phase and two-phase loads artificially as evenly as possible to the three phases! Because balancing three phases often requires on-column operation. Many balance-three-phase balancing equipment is heavy and maintenance is difficult, and it is difficult to meet the demand for equipment for rural network reconstruction.

Is there any kind of equipment that can be conveniently placed on the column and maintenance is convenient for the three-phase current unbalance protection device?

Yes, Henan Huide outdoor three-phase active power balance device HDB series, has unique advantages in product features and installation and use, and, it reduces the characteristics of line loss, no harmonics, by the market affirmed.


Henan Huide Electric Outdoor Active Power Balancer

The three-phase active balancing device HDB series has a high degree of practicality in outdoor operation:

Appearance size and quality are small, and it is easier to configure equipment on the column;

The internal module is pluggable and can be maintained on the column.

Parallel operation of modules, and expansion of equipment in a simple environment;

Multiple zero line compensation capability eliminates zero line current and reduces line losses!

In addition, Henan Huide Electric's three-phase current unbalance protection device is absolutely real material;

Electromagnetic interference and electron radiation optimization

The use of reliable high-pass filtering technology to absorb electromagnetic interference will prevent electromagnetic interference caused by outdoor three-phase active balancing devices on home appliances.

The cabinet adopts SPCC material steel plate, and its thickness reaches 1.5mm, which can completely isolate the electron radiation generated by the electronic devices inside the device and ensure that the electron radiation does not affect the surrounding people and objects.

Fan and heat treatment

Sanyo Electric Co., Ltd. uses centrifugal fans, low energy consumption, only 10W, large air volume, up to 3.83M3/min, long service life, up to 100,000 hours. In addition, the fan is controlled by the power unit, which increases the life of the fan to 300,000 hours.

Power unit:

The power unit consists of a driver section and an IGBT section. The drive part of our company has independent intellectual property rights and independent production, with a number of patent certificates; IGBT uses the world-leading Infineon products. The main circuit adopts three-phase full-bridge PWM inverter technology, which is small in size, high in efficiency and reliable. Modular production is adopted to achieve high standardization of production while improving product reliability and maintainability.

In addition, our company specializes in the power electronics industry, researches and produces active power filters, static var generators, and has more than ten years of experience in product development, production, installation, and field use. Accumulation of technology and experience in the power electronics industry can ensure that our company's outdoor three-phase active balancing device research and development, production and installation, and use have other advantages that other companies do not have.

High intelligence

Outdoor three-phase active balancing device intelligent automatic operation advantages:

After the installation of the device is completed, functions such as free operation, start and stop are completely automatic.

The starting current value range can be set. When the current is higher than a certain value, the device operates automatically. When the current is lower than a certain value, the device automatically stops. Save the loss of the device itself, extend the life of the device.

The device can handle three-phase unbalance, compensate reactive power and harmonics at the same time. The function is very powerful. Priority is given to the handling of three-phase imbalances. The remaining capacity can be used for reactive power and harmonics to achieve a multi-functional machine with a high utilization rate of the equipment.

Fault repair and maintenance

The device is designed according to no-operation maintenance and the device is safe and reliable. In the unlikely event that an accident occurs and maintenance is required, our customer service personnel can depart to the site within 24 hours to handle the problem.

Operation and communication

The device communication function adopts the current cloud concept, device parameter adjustment, operating status view, implementation of data viewing, historical data viewing completed entirely by the Internet, and only one computer with Internet access can log onto the website background to achieve the above functions. Powerful network data storage ensures long-term preservation of all data without loss.

Henan Huide Electric's three-phase current unbalance protection device is safer to use

Henan Huide HDB outdoor three-phase active power device design has overheat protection, over-current protection, over-voltage protection, automatic current limiting protection, fully protect the internal operating circuit safety.

The device has a lightning arrester that can sense the impact of lightning and power grid disturbance on the device and ensure the safe and reliable operation of the device.

The device shell adopts SPCC material steel plate, which has a high degree of protection to ensure the reliability of long-term outdoor operation.

The door lock uses a triangular self-closing lock to ensure that non-workers cannot open the door.

The installation height of the cabinet is higher than 2.5 meters. There is a clear live safety sign outside the cabinet to prevent non-workers from inadvertently touching and causing potential safety hazards.

The imbalance of three-phase currents is the focus of the rural network transformation. In 2016, the country spent more efforts on the reconstruction of rural power grids and promoted the transformation of power grids in 40,000 villages. For large power companies, the installation of three-phase active power balancing devices is equally important. Henan Huide outdoor three-phase active power balance device HDB series can not only be transformed into rural power grids, but also can be used for distribution equipment of large enterprises.

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