automatic starting and switching system for generator

2
1. How do you sense when the generator is running and supplying 230VAC output? Ans. We may sense Gen set running through KM1 as shown in below given circuit diagram, in DC portion. 2. How do you sense the power company voltage? Ans. It will be sensed through first R2, R1 then KM1, as show in circuit diagram. 3. Transfer switches specification? Coil voltage? Ans. Transfer switch will be a magnetic contactor, it draws 40mAcurrent, whose coil voltage will me AC 230 volt. 4. The generator starter circuit can be one of two methods: a) The switch grounds the starter solenoid, or b) The switch applies 12V to the solenoid. Which method does your generator use? Ans. It is the second option that is; it supplies 12V DC to solenoid. 5. How much current does the starter solenoid draw? Ans. We can Install a relay here to control the solenoid current, as shown in circuit diagram. 6. Does the generator have an automatic choke? Ans. I dont understand this question?

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Automatic Starting and Switching System

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  • 1. How do you sense when the generator is running and supplying 230VAC output?

    Ans. We may sense Gen set running through KM1 as shown in below given circuit diagram, in DC portion.

    2. How do you sense the power company voltage?

    Ans. It will be sensed through first R2, R1 then KM1, as show in circuit diagram.

    3. Transfer switches specification? Coil voltage?

    Ans. Transfer switch will be a magnetic contactor, it draws 40mAcurrent, whose coil voltage will me AC 230 volt.

    4. The generator starter circuit can be one of two methods:

    a) The switch grounds the starter solenoid, or

    b) The switch applies 12V to the solenoid. Which method does your generator use?

    Ans. It is the second option that is; it supplies 12V DC to solenoid.

    5. How much current does the starter solenoid draw?

    Ans. We can Install a relay here to control the solenoid current, as shown in circuit diagram.

    6. Does the generator have an automatic choke?

    Ans. I dont understand this question?

  • G MAINSNLG

    R1 KM1

    KM2

    SAFETYRELAY

    MAIN MAINAVAILABLE

    N L

    PE 12 11 14

    UV/OV RELAY

    T1

    T1

    MAINONLOAD

    KM1

    MAIN ONDELAY

    AUTO/TEST

    KM2T2

    T2

    KM1

    R1

    GEN.SETAVAILABLE

    GENSETONLOAD

    GENSETON DELAY

    GENSET

    KM2

    KM2

    MCBDP32A

    MCBDP32A

    KM1

    KM

    2

    KM

    1

    MECHANICALINTERLOCK

    R1

    R2

    2A

    2A

    GS

    KM1

    C1

    C1

    DC 12 VCRANKCIRCUIT

    DC 12 VGEN SETSTARTER

    R2

    UV/OVTRIP

    H2 H1H5H3 H4

    C1

    DC 12 VOLTBATTERY

    GEN SETON/OFFSOLENOID

    S

    C1

    KM1