INTELLIGENT POWER FIXED QUANTITY DEVICE

INTELLIGENT POWER FIXED QUANTITY DEVICE

  • CN 2,070,507 U
  • Filed: 12/09/1988
  • Issued: 01/30/1991
  • Est. Priority Date: 12/09/1988
  • Status: Active Grant
First Claim
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1. , a kind of intelligent electric power batcher comprises sampler, level discriminator and actuator, of the present utility model being characterised in that:

  • A, sampler are by voltage transformer T 1, current transformer T 2Deng the related power sampler that constitutes;

    The sampled signal one tunnel of b, related power sampler exports to by resistance R 9, capacitor C 6Deng the integration memory circuit that constitutes, another road exports to by operational amplifier A 2In the scale operation circuit that constitutes;

    The integration memory signal one tunnel of c.RC integration memory circuit exports to by operational amplifier A 1Deng the linear calculating circuit that constitutes, another road exports operational amplifier A to 2Compare in scale operation circuit that constitutes and related power sampled signal;

    D, by operational amplifier A 1Deng the output signal of the linear calculating circuit that constitutes with by operational amplifier A 2Output signal two-way in the scale operation circuit that constitutes passes through diode D 4, D 5Selection is sent into by operational amplifier A 3"+" input of the level discriminator that constitutes, "-" input input signal of level discriminator is by resistance R 14, R 24The partial pressure value of the bleeder circuit that constitutes;

    E, by operational amplifier A 2Output signal in the scale operation circuit that constitutes is connected to relay J simultaneously 1With by operational amplifier A 8And formations such as loudhailer or buzzer open the control warning circuit, with control relay J 1Action is also opened the control warning circuit;

    F, by operational amplifier A 3The output signal input of the level discriminator that constitutes is by operational amplifier A 5, resistance R 20, diode D 11The delay self-lock circuit that constitutes, resistance R 20, diode D 11Constitute operational amplifier A 5Positive feedback;

    G, by operational amplifier A 5, resistance R 20, diode D 11The output signal of the delay self-lock circuit that constitutes is passed through operational amplifier A 7, triode B 3Difference control relay J 1, J 2Action.

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