Ing condition of each power unit¡¯s main circuit and progress detailed analysis.
Frequency-converting soft start technology
The starting current is very low in frequency-convering starting progress. No limit of starting times. After starting the itching progress will not cause problem because fault operation of frequency converting soft start device.
Packing: wooden case
Dimensions: variable
¡¡¡¡ydq5 liquid resistor rotor starters (hereinafter referred to as starters) are the new kind of starting devices developed for improving the starting feature of large- and medium sized wire-wound ac asynchronous motors. Having solved the problems of frequency sensitive resistor starters which are high in impact current, difficult in starting and not easy to
Technical characteristics
1 the starting current is low but constant without impact on power network; the starting current is no more than 1.3 times the rated current. Therefore the requirements of the heavy-load starting of motor for transformer capacity can be decreased, reducing lump sum investment.
2 it is smooth in starting, so as to lower its impact on the mechanical equipment, and the service life of the mechanical equipment and motor can be prolonged by about 30 percent.
3 it is high in its heat capacity, and it can start for 3~10 times continuously.
4 it can still start under low voltage state. Smooth start can be ensured so long as the voltage of the power network can guarantee the motor to operate normally.
5 it is simple in structure, easy to maintain. Its reliability is more superior than that of frequency sensitive, oil-soaked type resistors.
Packing:wooden case
Dimension: variable
