UTLH21 TOSHIBA Microprocessor Module

UTLH21 TOSHIBA Microprocessor Module

UTLH21 inductive load current ahead of the power supply voltage, and capacitive load current lagging behind the power supply voltage, so ahead of the current and lagging current can be complementary to the reactive power absorbed from the power supply before the capacitor shunt point (or grid) is reduced, that is, the reactive power of the capacitive load compensates for the reactive power of the inductive load. When the grid capacity is certain, the reactive power is reduced, which can greatly improve the power factor.

UTLH21 automatic control equipment assembled by discrete components, this product has a lot of components, bulky and huge equipment, complex lines, poor reliability, and difficult to repair when there is a failure. Some users can not be repaired due to the equipment, had to manually control, in the rapid development of science and technology, integrated circuits, microelectronics technology has been popularized today, this situation is far from being able to adapt to the requirements of modern production.

UTLH21 voltage reactive power control system with microcontroller as the main control unit has been greatly developed, but the anti-interference ability of the microcontroller is poor, and the reliability is not easy to be ensured in the field of medium- and high-voltage reactive power compensation. On the other hand, the higher the voltage level of the substation, the larger the radiation range, the larger the coverage of the fault, so the system requires more control ability and communication ability.