Switching devices
Balance minimum relays DMR-400Т and DMR-600Т aredesigned for:
- remote manual control (switching on and off) of oscillator;
- linking-up oscillator if its voltage is higher than circuit voltage, minimum 0,2÷0,3 V;
- dropping oscillator in case of reaching set value of reverse current;
- excluding possibility of oscillator of incorrect polarity linking-up;
- providing oscillator dropping or linking-up alarm.
Balance minimum relay structure:
- Rtr – triggering relay – electromagnet relay preparing BMR for work when switching on oscillator;
-Rbl – blocking relay – guarantees protection of shunt winding of balance relay while voltage drop supply ΔU> 12 V.
- Rb. – balance relay – designed for oscillator linking-up and dropping control. Polar relay with permanent magnets is used as balance relay.
