CN203135768U - Solid state soft starting positive and reverse rotation control circuit of high power motor - Google Patents
Solid state soft starting positive and reverse rotation control circuit of high power motor Download PDFInfo
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- CN203135768U CN203135768U CN 201220392449 CN201220392449U CN203135768U CN 203135768 U CN203135768 U CN 203135768U CN 201220392449 CN201220392449 CN 201220392449 CN 201220392449 U CN201220392449 U CN 201220392449U CN 203135768 U CN203135768 U CN 203135768U
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Abstract
The utility model discloses a solid state soft starting positive and reverse rotation control circuit of a high power motor. A soft starter controlled power supply outage control circuit is composed of a time relay KT1, a time relay KT2 and an intermediate relay KA2 which are parallelly connected between a neutral line N and an auxiliary contact KM1d as well as an auxiliary contact KM2d of a positive and reverse rotation contactor; a circuit composed of the time relay KT1, the auxiliary contact KM1d and the auxiliary contact KM2d of the positive and reverse rotation contactor, and a contact KA2c of the intermediate relay KA2 is parallelly connected between the positive and reverse rotation contactor and the power supply neutral line N; a delay contact KT1a of the time relay KT1 and a delay contact KT2a of the time relay KT2 are connected with the contact KA2c and the contact KA2a of the intermediate relay KA2 in parallel and are further connected between the power supply neutral line N and the positive and reverse rotation contactor; and a delay contact KT1c of the time relay KT1 is connected between the power supply neutral line N and a line inlet terminal R13 as well as a line inlet terminal R14 of an AC 220V control power supply of the positive and reverse rotation contactor and the soft starter RQ. The solid state soft starting positive and reverse rotation control circuit controls the positive and reverse rotation of the soft starter.
Description
Technical field
The utility model relates to a kind of solid-state soft start positive and reverse rotation control circuit of high power motor.
Background technology
High power motor is the power-equipment that enterprise generally uses, and according to the requirement of operation, in some operations, the operation that often needs this large power, electrically function in time to do rotating could be finished the work well.As comprehensive stock ground, links such as the stacking of raw material, carrying, production conveying need selectively to stack to different places by belt conveyor, want the both forward and reverse directions transferring raw material at any time.Such belt conveyor is to adopt solid-state soft initiator starting motor operation, motor power (output) is big, be subjected to the restriction of the capacity of electric power system and transformer, and consider the big electric current of across-the-line starting to the impact of motor and the influence of system, the big motor of capacity more than 50KW generally do not allow across-the-line starting.Use the A.C. contactor phase modulation to realize the positive and reverse steering control of motor, must could move by solid-state soft start.But after the solid-state soft initiator major loop energising, its control system will be given tacit consent to primary startup phase sequence automatically; Stop the back, start inverted running, soft initiator will be quoted open-phase fault and quit work.Allow soft initiator counter-rotating start operation, only just change stop after, artificial disconnects the soft initiator power control switch, eliminate the acquiescence phase sequence that starts for the first time, the power turn-on control switch could oppositely start operation again, and at this moment soft initiator is given tacit consent to the startup phase sequence of counter-rotating again automatically; Next time, want to start and just transporting row and also have only and stop power control switch again repeatedly, restart operation.There is troublesome poeration, delays, influence production, mislead problems such as maintenance personal.
Summary of the invention
The purpose of this utility model provides a kind of solid-state soft start positive and reverse rotation control circuit of high power motor, can disconnect soft initiator control power supply in the A.C. contactor control loop in short-term to be implemented in, thereby eliminate the acquiescence phase sequence of major loop, make the rotating commutation of motor not be subjected to the A.C. contactor control loop to give tacit consent to the interference of phase sequence, avoid troublesome poeration, delay, influence production, mislead maintenance personal's problem.
The technical scheme of taking: the solid-state soft start positive and reverse rotation control circuit of high power motor, comprise that the rotating soft initiator starts control circuit, bypass operation and indicating circuit, soft initiator faulty indication control circuit, soft initiator control power cut-off control circuit; Wherein connect the conversing contactor circuit of being made up of contactor KM1 and contactor KM2 through fuse FU1, the circuit that is connected with AC380V power supply neutral line N through fuse FU2 constitutes soft initiator control power cut-off control circuit; It is characterized in that soft initiator control power cut-off control circuit is made of the time relay KT1 between the auxiliary contact KM1d that is attempted by conversing contactor, auxiliary contact KM2d and neutral line N, time relay KT2 and auxiliary relay KA2; Wherein, the circuit of the contact KA2c of auxiliary contact KM1d, the auxiliary contact KM2d of formation time relay KT1 and conversing contactor and auxiliary relay KA2 is attempted by between conversing contactor and power supply neutral line N; The time-delay contact KT2a of time-delay contact KT1a, the time relay KT2 of time relay KT1 and contact KA2c and the KA2a of auxiliary relay KA2 and connect after, be connected between power supply neutral line N and conversing contactor; The time-delay contact KT1c of time relay KT1 is connected between the AC220V control electric power incoming line terminal R13 and input terminal R14 and power supply neutral line N of conversing contactor and soft initiator RQ.
The rotating soft initiator starts control circuit and is made of the coil KM2-1 between the coil KM1-1 that is connected on neutral line N and conversing contactor KM1, conversing contactor KM2, wherein: circuit is after coil KM1-1 meets the auxiliary contact KM1a of the auxiliary contact KM2c of conversing contactor KM2R and rotating start button SB2 and conversing contactor KM1 and connects, and is connected on the contact KA1c contact series circuit of the contact SB1c of stop button SB1 and auxiliary relay KA1; Another circuit is the auxiliary contact KM1c that coil KM2-1 meets conversing contactor KM1, connects the rotating start button SB3 that is connected with the contact KA1c of auxiliary relay KA1 and the auxiliary contact KM2a parallelled circuit of conversing contactor KM2 again.
Bypass operation and indicating circuit are made up of two-way; The coil KM3-1 of bypass contactor control terminal R1 on one route and the soft initiator RQ, the bypass contactor KM3 that R2 is connected constitutes the operation circuit, and the auxiliary contact KM3a of another route bypass contactor KM3 and signal lamp XD1 are concatenated into bypass operation indicating circuit; Two the electricity and connect after circuit one end meet conversing contactor KM1, KM2 by fuse FU1, the other end meets power supply neutral line N by fuse FU2.
The formation of soft initiator faulty indication control circuit is: a route is formed with the fault-signal lead-out terminal R3 of soft initiator RQ, the auxiliary relay KA1 that R4 is connected, the contact KA1a of another route KA1 and fault-signal indicator light XD2 polyphone are formed, two-way and connect after, one termination fuse FU1 of circuit, the other end is made up fuse FU2.
According to original circuit, its major loop is constant, has added soft initiator control power cut-off control circuit in control loop, and the AC220V control power supply of soft initiator is controlled, and disconnects soft initiator control power supply in short-term, thereby eliminates the acquiescence phase sequence of major loop.Solving original solid-state soft initiator can only be unidirectional startup operational mode, can realize effectively that the rotating of soft initiator starts the control operation.
Description of drawings
Fig. 1 is the solid-state soft start positive and reverse rotation control circuit schematic diagram of high power motor.
Fig. 2 is control loop figure.
Fig. 3 is major loop figure.
Embodiment
Below in conjunction with accompanying drawing, as embodiment, the working method of circuit is explained.
With reference to Fig. 1, left-half is major loop, by circuit breaker Q F, and conversing contactor KM1, KM2, bypass contactor KM3, soft initiator RQ constitutes; Be that motor is realized the existing operating circuit of counter-rotating operation down; Right half part is control loop, is to realize that by the conversing contactor that is made of contactor KM1 and contactor KM2 and soft initiator RQ the power supply of motor controls, thereby realizes the circuit of motor positive and inverse operation.With reference to Fig. 1,2,3, each components and parts explanation among the figure: QF is power circuit breaker, controls break-make and the short-circuit protection of power supply, selects the device of GM8-250H/160A specification for use; KM1, KM2 are the rotating control contactor, and effect is that the control motor turns to, and adopts the device of GC1-250/220V model parameter; KM3 is bypass contactor, act as and switches to the bypass operation when start-up course finishes, with GC1-250/220V specification device; RQ is solid-state soft initiator, with the device of the Nore JJR5000/75KW of association specification.M is three-phase AC asynchronous motor, is work drive motor.KT1, KT2 are the time relay, play the power-off time of the solid-state soft initiator control of control power supply, and model is JS14P/220V; KA1 is auxiliary relay, the faulty indication in the control loop and chain; KA2 is auxiliary relay, act as that solid-state soft initiator control power supply only cuts off the power supply once when guaranteeing that motor stops, and the model of KA1 and KA2 is MY4NJ/220V.Stop button SB1, rotating start button SB2, SB3 all are the device of LA42P-22/220V with model.Fuse FU1, FU2 model are the device of RT9-20/6.L1, L2, L3 are the phase line of three phase mains in the major loop, and N is the neutral line.L21, L22, L23 are soft initiator bypass output major loop terminals; R, S, T soft initiator input supply terminal; U, V, W soft initiator output wiring terminal.
Concrete control is as follows: when stopping, KM1, KM2 is at open position, pass through KM1, KM2 assists normally closed interlock KM1d, the KM2d series connection, normally closed interlock KA2c with KA2, make time relay KT1 coil get electric and timing, delay time and utilize KT1c to disconnect soft initiator AC220V control power supply after 10 seconds, utilize KT1a to make time relay KT2 coil get electric and timing simultaneously, delay time and utilized KT2a that auxiliary relay KA2 coil is got in 5 seconds, utilize KA2a to realize the self-locking of KA2 coil, utilize the wire loop of KA2c relay K opening time T1 simultaneously, the KT1c closure makes the power supply of soft initiator control power up, thereby eliminate soft initiator to the acquiescence of major loop phase sequence (behind the soft initiator control power connection, only the major loop phase sequence of connecting is for the first time given tacit consent to, so soft initiator disconnects the control power supply in short-term, after major loop is connected negative-phase sequence, soft initiator can not reported fault, and motor could be realized counter-rotating after starting.）
Solid-state soft initiator AC220V power supply is controlled, made to receive on soft initiator R13, the R14 terminal and control power cut-off, eliminated the acquiescence of former phase sequence, to realize freely switching of the solid-state soft start rotating control of motor.Improve to add the concrete operation principle of part: motor is become when stopping by operation, KM1d, KM2d, the KA2c contact is connected, the KT1 coil gets electric and delays time and disconnected the KT1c contact that is connected in the soft initiator control electric power loop in 10 seconds, after making the KT2 coil get electric and delayed time 5 seconds by the KT1a contact simultaneously, by the KT2a contact KA2 coil is got, and by KA2a contact realization self-locking, disconnect the KT1 wire loop by KA2C simultaneously, make soft initiator control power connection, for next time counter-rotating control starts prepare (improved technology only is that the convenience of soft initiator oppositely starts operation).
The present technique beneficial effect is: device therefor is simple, saves cost of investment, and is easy for installation, reliable, reduces the starting current of motor, reduces starting current to the impact of motor with to the influence of system, and certain energy-saving effect is arranged in starting process.The rotating that can effectively realize soft initiator again starts the control operation, and solving solid-state soft start can only be unidirectional startup operational mode, and the rotating that reaches light realization soft initiator starts the purpose of control operation.
Claims (1)
1. the solid-state soft start positive and reverse rotation control circuit of high power motor, comprise through fuse FU1 and connect the conversing contactor circuit of being formed by contactor KM1 and contactor KM2, through the soft initiator control power cut-off control circuit that fuse FU2 is connected with AC380V power supply neutral line N, it is characterized in that soft initiator control power cut-off control circuit is made of the time relay KT1 between the auxiliary contact KM1d that is attempted by conversing contactor, auxiliary contact KM2d and neutral line N, time relay KT2 and auxiliary relay KA2; Wherein, the circuit of the contact KA2c of auxiliary contact KM1d, the auxiliary contact KM2d of formation time relay KT1 and conversing contactor and auxiliary relay KA2 is attempted by between conversing contactor and power supply neutral line N; The time-delay contact KT2a of time-delay contact KT1a, the time relay KT2 of time relay KT1 and contact KA2c and the KA2a of auxiliary relay KA2 and connect after, be connected between power supply neutral line N and conversing contactor; The time-delay contact KT1c of time relay KT1 is connected between the AC220V control electric power incoming line terminal R13 and input terminal R14 and power supply neutral line N of conversing contactor and soft initiator RQ.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220392449 CN203135768U (en) | 2012-08-09 | 2012-08-09 | Solid state soft starting positive and reverse rotation control circuit of high power motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220392449 CN203135768U (en) | 2012-08-09 | 2012-08-09 | Solid state soft starting positive and reverse rotation control circuit of high power motor |
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| CN203135768U true CN203135768U (en) | 2013-08-14 |
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| CN 201220392449 Expired - Lifetime CN203135768U (en) | 2012-08-09 | 2012-08-09 | Solid state soft starting positive and reverse rotation control circuit of high power motor |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103633888A (en) * | 2013-11-25 | 2014-03-12 | 国家电网公司 | Motor positive and negative rotation control circuit |
| CN105156312A (en) * | 2015-09-15 | 2015-12-16 | 珠海格力电器股份有限公司 | Constant-frequency compressor starting circuit and starting method |
| CN105305919A (en) * | 2015-10-28 | 2016-02-03 | 中国船舶重工集团公司第七一〇研究所 | Circuit for controlling steering of alternating-current motor based on direct-current contactor |
| CN106026783A (en) * | 2016-06-25 | 2016-10-12 | 黄志强 | Automatic control method for soft starting of double-speed motor |
| CN106026785A (en) * | 2016-06-25 | 2016-10-12 | 黄志强 | Automatic control line for soft starting of double-speed motor |
| CN106026782A (en) * | 2016-06-25 | 2016-10-12 | 黄志强 | Control line for soft starting of double-speed motor |
| CN106026784A (en) * | 2016-06-25 | 2016-10-12 | 黄志强 | Automatic control device for soft starting of double-speed motor |
| CN106059395A (en) * | 2016-06-25 | 2016-10-26 | 黄志强 | Soft-starting control device for double-speed motor |
| CN106100454A (en) * | 2016-06-25 | 2016-11-09 | 黄志强 | Double-speed motor soft start control method |
| RU2793340C1 (en) * | 2022-08-11 | 2023-03-31 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Кубанский государственный технологический университет" (ФГБОУ ВО "КубГТУ") | Reversible control circuit of self-braking asynchronous electric motor with shifting squirrel-cage rotor |
-
2012
- 2012-08-09 CN CN 201220392449 patent/CN203135768U/en not_active Expired - Lifetime
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103633888A (en) * | 2013-11-25 | 2014-03-12 | 国家电网公司 | Motor positive and negative rotation control circuit |
| CN103633888B (en) * | 2013-11-25 | 2016-03-16 | 国家电网公司 | Motor positive inversion control circuit |
| CN105156312A (en) * | 2015-09-15 | 2015-12-16 | 珠海格力电器股份有限公司 | Constant-frequency compressor starting circuit and starting method |
| CN105156312B (en) * | 2015-09-15 | 2018-02-13 | 珠海格力电器股份有限公司 | Invariable frequency compressor start-up circuit and startup method |
| CN105305919A (en) * | 2015-10-28 | 2016-02-03 | 中国船舶重工集团公司第七一〇研究所 | Circuit for controlling steering of alternating-current motor based on direct-current contactor |
| CN106026782A (en) * | 2016-06-25 | 2016-10-12 | 黄志强 | Control line for soft starting of double-speed motor |
| CN106026785A (en) * | 2016-06-25 | 2016-10-12 | 黄志强 | Automatic control line for soft starting of double-speed motor |
| CN106026784A (en) * | 2016-06-25 | 2016-10-12 | 黄志强 | Automatic control device for soft starting of double-speed motor |
| CN106059395A (en) * | 2016-06-25 | 2016-10-26 | 黄志强 | Soft-starting control device for double-speed motor |
| CN106100454A (en) * | 2016-06-25 | 2016-11-09 | 黄志强 | Double-speed motor soft start control method |
| CN106026783A (en) * | 2016-06-25 | 2016-10-12 | 黄志强 | Automatic control method for soft starting of double-speed motor |
| RU2793340C1 (en) * | 2022-08-11 | 2023-03-31 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Кубанский государственный технологический университет" (ФГБОУ ВО "КубГТУ") | Reversible control circuit of self-braking asynchronous electric motor with shifting squirrel-cage rotor |
| RU2796585C1 (en) * | 2022-08-11 | 2023-05-25 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Кубанский государственный технологический университет" (ФГБОУ ВО "КубГТУ") | Reversible control circuit of self-braking asynchronous electric motor with shifting squirrel-cage rotor |
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| C14 | Grant of patent or utility model | ||
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Granted publication date: 20130814 |
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| CX01 | Expiry of patent term |