YDFK composite switch is the best product which could control the switching on/off of low-voltage power capacitor. It switches capacitors in/off by measuring external control signal. YIDEK added the data communication function for it creatively so YDFK composite switch is the best product which could control the switching on/off of low-voltage power capacitor. It switches capacitors in/off by measuring external control signal. YIDEK added the data communication function for it creatively so that users can reduce the wiring difficulty observably. This product equips with the protection breaker(MCB).
This kind product has many strong features. It can automatically switch capacitors in when find the voltage zero-off point and switch capacitors off when find the electric current zero-off point so that it can realize the non surge(inrush current) switching. It adopts magnetic latching relays which has the less consumption and not harmonics input. It has the perfect self-diagnostic and protection functions including the abnormal voltage protection, the phase-break protection, the fault self-diagnostic and so on.
* Rated Operating Voltage: AC380V/AC220V
* Controlled Capacitors Capacity: Three-phase≤50kvar, △ type wiring
Single-phase≤40kvar, Y type wiring
* Rated Current: 45A/60A/100A
* Service Life: 2 million times
* Power Dissipation: ≤1.5W
* Voltage Drop: ≤100mV
* Withstand Voltage: ≥2500V
* Response Time: ≤100ms
* Switch In/Off Time Interval: ≥1s
Product Specification
Main Technology Feature
* Zero-crossing switching
The basic operating principles are the voltage zero-crossing switching-in and the current zero-crossing switching-off.
* Ultra-low power dissipation
This product adopts magnetic latching relays which only consume electric power in the switching in and off moment. The contacting resistance of this relay is ultra-low so that do not need to equip cooling fins and fans in addition, reducing the power dissipation observably. This component can realize the ambition of energy saving and dissipation reducing effectively.
* Adopt SCM which can intelligently monitor the running state of relays, power supply and loads to control the switching-in and switching-off so that the switch could have the complete protection functions.
The voltage phase-break protection of power supply: the YDFK switch will not switch capacitors on when any phase of power supply is broken down.
Judge fault protection automatically: the system will monitor the running state of the magnetic latching relays automatically. If there is a fault in the system, the YDFK switch will not switch capacitors into the system. If capacitors have been switched into the system, the YDFK switch will switch off automatically.
No-load protection: when there is not load in the system, the YDFK switch will not switch capacitors in.
Power cut protection: when the power cut off after the switching-in of YDFK, the YDFK switch will switch off automatically.
* The input signals which can be transmitted by RS485 communication will keep optoelectronic isolation with the main circuit.
* Strong anti-interference performance. Operating safely and reliably .
If you have any question, don't feel hesitate to contact me.
