Product overview:
According to the technical requirements of power capacitor switching, the power electronic switch
thyristor and the high-power bistable magnetic holding relay are combined to realize the voltage
zero-crossing input and the current zero-crossing. It not only has the advantages of non-contact
switch zero-cross switching, but also has the advantages of small contact resistance, impact
resistance, reliable operation, low energy consumption, long mechanical life, etc. It is designed
and manufactured for 0.4KV system switching power capacitors. In the low-voltage reactive power
compensation device in the factory, living quarters, box change and urban network and rural network
transformation.
Technical Characteristics:
-- Working power supply: AC220V + / - 20%;
-- Control voltage: 400 v;
-- Contact capacity: AC250V, 60 a;
-- Control capacitor capacity: 30 kvar or less;
-- Control mode: DC12V;
-- Input flow: < 2.0 Ie;
-- Altitude: 2500 meters or less;
-- Ambient temperature: - 40 ? ~ + 70 ?;
-- Relative humidity: 90% or less when air humidity at 20 ?, and higher relative humidity is
allowed when the temperature is lower;
-- Environmental conditions: There is no danger of explosion in the surrounding medium, no
gas enough to damage the insulation and corrode the metal, no conductive dust.
-- ambient medium no explosion danger, no enough to damage the insulation and corrosion
of metal gas, no conductive dust.
Main Technical Parameters:
voltage zero-crossing input, current zero-crossing;
Cut and cast demonstration protection function;
lack of phase protection function ;
uno need for peripheral power supply;
u Long mechanical life; using microprocessor to drive magnetic holding relay, low failure rate;
u No need for external series reactor, no on-off current, zero-crossing switching, no harmonic injection;
uThe power consumption is small after the switch is turned on, and it does not generate heat;
uEnter the new number photoelectric isolation, the action is stable and reliable;
u strong anti-interference ability;
u No load capacitance monitoring alarm.