Supply LVP variable load phase advancer for Yuanchuang wound motors

Product name Variable load phase advancer
Specification and model series
Manufacturer Xiangyang Yuanchuang Industrial Control Co., Ltd.
Production address No. Hongguang Road, Fancheng District, Xiangyang City, Hubei Province
Ordering instructions: Subordinate materials are required when ordering
All nameplate parameters of motor models
Cabinet surface color requirements
Interface requirements
If you have special requirements, please consult with our company.
Overview
The variable load phase advancer is a high-tech product developed by combining pulse width modulation alternating frequency conversion technology and microcomputer automatic control technology. It belongs to the key areas of scientific and technological innovation supported by the Ministry of Science and Technology. This product is a reactive power on-site compensation device specially designed for large and medium-sized wound-type asynchronous motors. Its remarkable feature is that it can be widely used in wound motors under various load conditions. When the load changes, the rated amount will exceed twice the rated amount when the load suddenly changes. Power factor compensation under working conditions fully realizes energy saving and consumption reduction of large and medium-sized winding asynchronous motors, highlighting the incomparable advantages of traditional reactive power compensation devices. It is connected in series in the motor rotor circuit, and changes the rotor by changing the rotor. The phase relationship between the current and the rotor voltage will then change the corresponding relationship between the motor stator current and voltage, thereby achieving the purpose of improving the motor's own power factor and efficiency and overload capacity, reducing the motor stator current and reducing the motor's own losses.
In industrial and mining enterprises, the reactive power consumption of the power grid mainly comes from three-phase AC asynchronous motors. Therefore, reactive power compensation of high-power asynchronous motors is the main way for industrial and mining enterprises to save energy. At present, there are two main methods of reactive power compensation for large and medium-sized windings at home and abroad. One is a parallel capacitor on the stator side of the motor, and the other is a series-connected phase advance device on the motor rotor circuit. Both compensation methods are used in constant load conditions. For example, ball mills can achieve good compensation. However, under variable load conditions, due to the large change amplitude of the variable load, the characteristics of frequent mutations, and the intermittent process, neither the capacitor nor the existing static phase advancer can meet the requirements. Requirements for reactive power compensation of wound motors under variable load conditions. In view of this, our company independently developed a series of universal electronic soft phase advancers, which completely solved the reactive power compensation problem of wound motors under variable load conditions.
The variable load phase advancer adopts advanced AC frequency conversion technology and microcomputer automatic control technology, high-sensitivity electronic measurement technology and phase-locked loop phase locking technology, which can automatically track changes in the motor load operating status and detect the back electromotive force of the motor in a timely manner. The load size of the motor is determined based on the rate of change of the motor's back electromotive force. Phase-locked loop phase locking technology is used to track and lock the compensation phase in a timely manner, automatically adjust the amplitude of the additional electromotive force superimposed on the rotor circuit, and automatically adjust relevant parameters, thereby reducing the reactive power of the motor. The compensation always maintains the best compensation effect, saving energy and reducing consumption significantly. It makes the motor run efficiently and smoothly, greatly reducing the temperature rise of the motor and extending the service life of the motor.
The main features of variable load phase advancer
. It adopts advanced alternating frequency conversion technology and microcomputer automatic control technology, high-sensitivity electronic measurement technology and phase-locked loop phase locking technology, which can automatically track changes in the motor load operating status and detect the back electromotive force of the motor in a timely manner.
. The variable load state reduces the motor stator current and reduces the line loss and copper loss. The constant load state reduces the motor stator current and reduces the line loss and copper loss.
. The energy saving and consumption reduction are significant. After phase advancement, the motor power factor can be increased to 100% and reactive power can be saved. Its excellent compensation effect is unmatched by ordinary phase advancers.
. With the soft phase advance function, there is no impact on the motor and mechanical equipment, which extends the service life of the soft phase advance device, motor and mechanical equipment.
. The temperature rise of the motor is significantly reduced, and the overload capacity and operating efficiency are greatly improved, thereby extending the service life of the motor.
. Automatically track changes in the motor's operating conditions, automatically adjust the amplitude of the additional electromotive force superimposed on the rotor circuit, and automatically adjust relevant parameters, so that the reactive power compensation of the motor always maintains the best compensation effect.
. The compensation characteristics are better than capacitor and existing phase advancer compensation, which not only improves the power factor of the line, but also improves the power factor of the motor itself.
. It has automatic fault protection function, is simple to operate, and maintenance does not affect production.
Scope of application of variable load phase advancer
The phase advancer can be widely used in the variable load state or constant load of large and medium-sized winding asynchronous motors in the steel, wood, sugar, rubber, metallurgy, mining, cement, chemical, paper and other industries. In-situ compensation of large and medium-sized wound asynchronous motors. Such as ball mill, steel rolling machine, press, fan, water pump, crusher, compressor, etc.
Scope of application of variable load phase advancer
The phase advancer can be widely used in the variable load state or constant load of large and medium-sized winding asynchronous motors in the steel, wood, sugar, rubber, metallurgy, mining, cement, chemical, paper and other industries. In-situ compensation of large and medium-sized wound asynchronous motors. Such as ball mill, steel rolling machine, press, fan, water pump, crusher, compressor, etc.
Ordering Instructions
Please provide the following information when ordering
●Wound motor model rated power stator voltage rotor voltage rotor current rated power factor.
●Cabinet surface color.
●According to user requirements, high and low voltage switch cabinet series liquid resistance starting cabinets can be configured.
●If the user has special requirements, please negotiate with our company to place an order