CN201290085Y

CN201290085Y - High tension magnetic saturation type motor pressure regulating initiator

Info

Publication number: CN201290085Y
Application number: CNU2008201494723U
Authority: CN
Inventors: 尚勤贵
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-09-23
Filing date: 2008-09-23
Publication date: 2009-08-12
Anticipated expiration: 2018-09-23

Abstract

The utility model provides to a high-voltage magnetic saturation type voltage-adjusting starter for a motor, which relates to a device for starting the motor. The utility model aims to provide the high-voltage magnetic saturation type voltage-adjusting starter for the motor, of which impulse electric energy can not be generated by a reactor when the power suddenly cut off. The technical scheme of the high-voltage magnetic saturation type voltage-adjusting starter for the motor is that an output terminal of a variable reactor is connected with the motor, a normally open contactor KM1 for a start relay is connected in series with a circuit between the output terminal of the variable reactor and a power supply, a normally open contactor for an operation relay is connected adjacently to a circuit between the power supply and the motor, a normally open contact of an intermediate relay, a normally closed contact KM of the operation relay and two ends of a start relay KM which are connected in series on the circuit are respectively connected with a power supply L1 and a power supply L2, the intermediate relay KT is connected in parallel with the intermediate relay KM; a time delay closed contact KT of a time relay and two ends of a series circuit of the operation relay KM are respectively connected with the power supply L1 and the power supply L2. The voltage-adjusting starter can be used for starting motors.

Description

A kind of high pressure magnetic saturation type motor pressure regulation starter

Technical field:

The utility model relates to a kind of device that is used for actuating motor, particularly a kind of high pressure magnetic saturation type motor pressure regulation starter.

Background technology:

03272272.9 patent adopts program timer variable reactor to be controlled the startup of finishing motor, solved the deficiency of the little and wiring complexity of staring torque that autotransformer reduced voltage starter and star angle starter exist, but, reactor is connected in series on the circuit between power supply and the motor all the time in electric motor starting process and running, have a power failure at power supply suddenly, reactor can produce instantaneous electric energy output, electrical equipment is had the danger of impact failure.In addition, the circuit of the program timer that is adopted is complicated.

Summary of the invention:

The purpose of this utility model provide a kind of when power supply has a power failure suddenly reactor can not produce the high pressure magnetic saturation type motor pressure regulation starter that impacts electric energy.The technical solution of the utility model is, a kind of high pressure magnetic saturation type motor pressure regulation starter, it comprises variable reactor and controller, it is characterized in that: the output of variable reactor is connected with motor, circuit between its input and the power supply is serially connected with starting relay normally open contactor KM1, on the other circuit that is connected between power supply and the motor of operation relay normally open contactor; Described controller is that the two ends of stop button SB1, starting button SB2 and the series circuit of auxiliary relay KA are connected with L2 with power supply L1 respectively; The normally-closed contact KM2 of the normally opened contact of auxiliary relay, operation relay and the string of starting relay KM1 are connected with L2 with power supply L1 respectively at the two ends of circuit, and auxiliary relay KT and KM1 also connect; The timing closing contact KT of the time relay is connected with power supply L1, L2 respectively with the two ends of the series circuit of operation relay K M2, and the normally opened contact KM2 and the timing closing contact KT of operation relay also connects.The utility model has compared with the prior art at the power supply reactor that has a power failure suddenly can not produce the advantage of impacting electric energy and damaging electrical equipment.

Description of drawings:

Fig. 1 is the main wiring diagram of the utility model high pressure magnetic saturation type motor pressure regulation starter, and Fig. 2 is the control electrical schematic diagram, and Fig. 3 is the reactor structural representation.

Embodiment:

In conjunction with above-mentioned accompanying drawing the utility model is elaborated, when starter motor, at first power supply L1 and the K switch closure on the L2 with control circuit makes control circuit and 220V power connection, press starting button SB2, auxiliary relay KA gets electric and self-insurance, normally open contact KA closure on this moment power supply L1 circuit, starting relay KM1 gets, the moving contactor KM1 closure of normal unlatching on the main electrical scheme circuit is with reactor and power connection at this moment, motor begins to start, it is bright to start indicator light LH1, simultaneously, time relay KT gets, at this moment, finish back timing closing contact KT closure at the delay time of setting, operation relay and KM2 get electric and self-insurance, at this moment, and the operation contactor KM2 closure between motor and the power supply, simultaneously, the operation contactor normally closed interlock KM2 that is serially connected on starting relay KM1 and the auxiliary relay normally opened contact KA circuit disconnects, starting relay KM1 dead electricity, and the starting contactor KM1 between reactor and the power supply disconnects, motor transfers normal operating condition to, reactor and power supply disconnect, thereby, even power supply has a power failure suddenly, reactor can not produce electric energy, can not have a negative impact to the electrical equipment on the circuit.

When needing to shut down, press stop botton SB1, auxiliary relay KA dead electricity, this moment, starting contactor KM1 and operation contactor KM2 all disconnected, and motor stops operating, and halt indicator Lh2 is bright, and starting indicator light LH1 goes out.

In order to realize high pressure starting, three annular magnet iron cores 4 are placed the housing 1 of reactor, and keep apart with high insulating material (as polypropylene) plate 2, be full of withstand voltage oily 3 (referring to Fig. 3) in the housing, adopt this structure reactor to can be used in the high-tension circuit.

Claims

1, a kind of high pressure magnetic saturation type motor pressure regulation starter, it comprises variable reactor and controller, it is characterized in that: the output of variable reactor is connected with motor, circuit between its input and the power supply is serially connected with starting relay normally open contactor KM1, on the other circuit that is connected between power supply and the motor of operation relay normally open contactor; Described controller is that the two ends of stop button SB1, start button SB2 and the series circuit of auxiliary relay KA are connected with L2 with power supply L1 respectively; The normally-closed contact KM2 of the normally opened contact of auxiliary relay, operation relay and the string of starting relay KM1 are connected with L2 with power supply L1 respectively at the two ends of circuit, and auxiliary relay KT and KM1 also connect; The timing closing contact KT of the time relay is connected with power supply L1, L2 respectively with the two ends of the series circuit of operation relay K M2, and the normally opened contact KM2 and the timing closing contact KT of operation relay also connects.