Product use

Mine flameproof and intrinsically safe static VAR generator (hereinafter referred to as SVG) is suitable for underground coal mines with explosive dangerous gases and dust, mainly to solve the problems of low power factor and high harmonics of underground power supply system caused by underground fans, local fans, shearer, tape conveyors, mobile substations and other loads. Rated voltage 1140V or 660V, single capacity of 300, 500kvar, can be connected to the power grid in parallel, can compensate the capacitive or inductive reactive power of the power grid in real time, and can continuously adjust the size of reactive power current in real time, power factor can be increased to more than 0.95, and has active filter (APF) function. It can effectively suppress the 5, 7, 11 and other harmonics of the system, and play a role in removing grid waste, clean power energy and improving power quality.

Main feature

The shell adopts the translation type quick opening structure, heat pipe heat dissipation, small size (the internal modular design), easy and fast operation;

All Chinese, LCD real-time display system three-phase voltage, three-phase current, frequency, power factor, active power, reactive power, electrical degree, insulation resistance, switching state, fault information and other parameters;

The control core adopts floating-point type DSP28355, which has fast operation speed, and adopts 16-bit high-precision AD sampling chip, which has high sampling precision, more accurate reactive power calculation, and better dynamic tracking compensation performance.

The high efficiency heat pipe + fan self-cooling mode provides a good cooling environment for the IGBT high-power heating device, which can extend the service life of the high-power heating device and ensure the safe and reliable operation of the heater.

Using PWM technology, three-level technology and multiple technology, not only the harmonic content of its own generation is very low, but also the harmonic and reactive power of the load can be compensated, to achieve the function of active filter, truly multi-functional;

The system is stable and reliable, and has a long service life. The stability and service life of SVG are improved by using thin film capacitor instead of aluminum electrolytic capacitor. The main components are imported, which can ensure the reliability and service life of its long-term operation. The innovative anti-interference and electromagnetic shielding design can effectively reduce the pollution of the power supply system;

Dynamic continuous adjustable, reactive power fine compensation, response time < 5ms;

With APF function, can effectively filter the system of 5, 7, 11 and other high harmonics;

Can be connected to multiple parallel power grid operation, improve capacity;

RS485, CAN, Ethernet interface, 4G/5G/WIFI can be configured to communicate with the coal mine power grid monitoring system, with telemetry, remote control, remote control, remote message, remote viewing and other functions, to achieve unattended substation;

Main technical parameters