CN2378881Y - Energy-saving device for slip motor - Google Patents

Energy-saving device for slip motor Download PDF

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Publication number
CN2378881Y
CN2378881Y CN99213029U CN99213029U CN2378881Y CN 2378881 Y CN2378881 Y CN 2378881Y CN 99213029 U CN99213029 U CN 99213029U CN 99213029 U CN99213029 U CN 99213029U CN 2378881 Y CN2378881 Y CN 2378881Y
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China
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contact
motor
another termination
movable contact
termination
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Expired - Fee Related
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CN99213029U
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Chinese (zh)
Inventor
张春雨
王宝艳
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Individual
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Individual
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Abstract

The utility model relates to an energy-saving device for a slip motor, which comprise a main circuit, a protection circuit, and a control circuit, wherein, the control circuit is composed of transfer circuits LK1, LK2, a main contactor KM, control relays KA, KA1, KA2, transfer contact coils KM1, KM2, KM3, contact buttons SB1, Sb2, a time relay KT2, and clock relay contacts SDK1J, SDK2J. When the utility model is started, a motor adopts high-torque connection, so the motor can rapidly rotate. After the utility model is started, the motor can adopt middle-torque or middle low-torque, and low-torque connection according to the capacity of load, so that the work efficiency of the motor can be enhanced, power can be saved by about 40 percents, and power factor can be increased by 50 percents to 60 percents.

Description

The slip motor energy saving devices
The utility model belongs to the energy-saving control device of motor.
Existing slip motor be in order to start smoothly, so generally all adopt the high torque (HT) connection, just has when electric motor normal working that power factor is low, current peak big, operating current is also big, the shortcoming that causes the motor operating efficiency to reduce.
The purpose of this utility model is a kind of slip motor energy saving devices of development, this energy saver can be controlled the mode of connection of motor winding, when motor start-up, adopt the high torque (HT) connection, and in but automatic or manual after the electric motor normal working becomes it torque connection, middle low torque connection, low torque connection, the operating efficiency of motor is improved.
The utility model comprises main circuit, protective circuit, and it also comprises control circuit.Main circuit is by automatic air-break switch ZK, main contactor contact KMJ, connecting terminal block JK, conversion contactor contact KM 1J 1, KM 2J 1, KM 3J 1, motor D forms.Protective circuit is by protector 1FU, 2FU, 3FU, excess temperature relay WJ 1-3, protection blocking relay tQ, hQ, service restoration control time relay K T 1, time-delay forms from opening relay DJ, zero-pressure relay YJ.Control circuit is by change over switch LK 1, LK 2, main contactor KM, control relay KA, KA 1, KA 2, conversion contactor coil KM 1, KM 2, KM 3, contact button SB 1, SB 2, time relay KT 2, clock relay contact SDK 1J, SDK 2J forms.
The utility model motor when starting adopts the high torque (HT) connection, can make motor fast turn-around, torque or middle low torque and low torque connection during the startup back can be adopted according to the big or small motor windings wiring of load, this control circuit can automatically restore to the high torque (HT) operating state of motor after having a power failure.The motor idle component that makes the utility model reduces a lot, and real component reduces seldom, and operating efficiency is improved greatly, can economize on electricity about 40%, and power factor has improved 50～60%.
Fig. 1 is a main circuit structure schematic diagram of the present utility model; that is to say that the motor windings high torque (HT) mode of connection is converted to the electrical block diagram of the middle torque mode of connection; Fig. 2 is the electrical block diagram of protective circuit and control circuit; Fig. 3 is the electrical block diagram of the low torque mode of connection during the motor windings high torque (HT) mode of connection is converted to, and Fig. 4 is the electrical block diagram that the motor windings high torque (HT) mode of connection is converted to the low torque mode of connection.
Embodiment: present embodiment is made up of main circuit, protective circuit, control circuit, and main circuit is by automatic air-break switch ZK, main contactor contact KMJ, connecting terminal block J 1, J 2, J 3, DY, conversion contactor contact KM 1J 1, KM 2J 1, KM 3J 1, motor D forms.Automatic air-break switch ZK is connected between 380V three-phase incoming line and the main contactor contact KMJ, and KMJ is connected on connecting terminal block J 1, J 2, J 3Lead-in wire terminal on, J 1, J 2, J 3Leading-out terminal switch through emat coil KM respectively 1Contact KM 1J 1Three breaks, KM 1J 1Three movable contacts meet the U of motor D respectively 1, V 1, W 1End, U 1, V 1, W 1End switches through emat coil KM again respectively 2Contact KM 2J 1Three breaks, KM 2J 1Three movable contacts meet the W of motor D again respectively 2, U 2, V 2End, W 2, U 2, V 2End switches through emat coil KM again respectively 3Contact KM 2J 1Three breaks, KM 3J 1Three movable contacts meet the V of motor D respectively 3, W 3, U 3End.Protective circuit is by protector 1FU, 2FU, 3FU, excess temperature relay WJ 1-6, protection blocking relay tQ, hQ, service restoration control time relay K T 1, time-delay forms from opening relay DJ, zero-pressure relay YJ.Control circuit is by change over switch LK 1, LK 2, main contactor KM, control relay KA, KA 1, KA 2, conversion contactor coil KM 1, KM 2, KM 3, contact button SB 1, SB 2, time relay KT 2, clock relay contact SDK 1J, SDK 2J forms.Clock relay SDK is battery-powered, and hangs in the rack.Protector 1FU, 2FU, 3FU are serially connected in terminal X respectively 1, X 2, X 3On, the contact KAJ of control relay KA and service restoration control time relay K T 1Contact KT 1After J was connected in parallel, one terminated on the 1FU, and the other end is connected on change over switch LK 1On, LK 1Another termination KTJ 5, KTJ 5The end of another termination main contactor KM, the end of another termination 2FU of main contactor KM.Excess temperature relay WJ 1-3The end of a termination 1FU, WJ 1-3The end of another termination control relay KA, the end of another termination 3FU of KA.The normal opened contact KAJ of control relay KA 1Break be connected on the 1FU KAJ 1Movable contact be connected on SB 1J 1Break on, SB 1J 1Movable contact be connected on the normally closed contact KAJ of KA 2On, KAJ 2Movable contact be connected on KAJ 3Break on, KAJ 3Movable contact be connected on the end of blocking relay tQ, the other end of tQ is connected on the 3FU.KMJ 2Break be connected on KAJ 1Break on, KMJ 2Movable contact be connected on KAJ 4Break on, KAJ 4Movable contact be connected on SB 2J 1Break on, SB 2J 1Movable contact be connected on the end of protection blocking relay hQ another termination 3FU of hQ.KAJ 5Break be connected on SB 2J 1Movable contact on, KAJ 5Movable contact be connected on YJ 1Break on, YJ 1Movable contact be connected on service restoration control time relay K T 1An end, KT 1Another termination 3FU.Time-delay terminates on the 3FU another termination DJ of DJ from opening one of relay DJ 1Movable contact, DJ 1Break meet YJ 1Movable contact, YJ 1Break meet KAJ 5Movable contact.YJ 2, KMJ 1, LK 2Three are connected in parallel, a termination KAJ 5Movable contact, on the other end connecting to neutral potential relay YJ, another termination 3FU of YJ.Conversion contact coil KM 1A termination 3FU, KM 1Another termination KT 2The movable contact of J, KT 2The break of J meets KAJ 5Movable contact.Time relay KT 2A termination 3FU, KT 2Another termination KA 1J 1, KA 2J 1Movable contact, KA 1J 1And KA 2J 1Break meet KAJ 5Movable contact.Conversion contact coil KM 2A termination 3FU, KM 2Another termination KA 1J 2Movable contact, KA 1J 2Break meet KAJ 5Movable contact.Conversion contact coil KM 3A termination 3FU, KM 3Another termination KA 2J 2Movable contact, KA 2J 2Break meet KAJ 5Movable contact.KA 2J 3Movable contact meet 3FU, KA 2J 3Break meet control relay KA 1An end, KA 1The contact SDK of another termination clock relay 1The end of J, SDK 1Another termination contact button SB of J 1An end, SB 1Another termination SB 2The end of J, SB 2Another termination KAJ of J 5Movable contact.SB 1Also and then KA of two ends 1J 4KA 1J 3A termination 3FU, KA 1J 3Another termination control relay KA 2An end, KA 2Another termination contact button SB 2An end, SB 2Another termination SB 1J, SB 1Another termination KAJ of J 5Movable contact.KA 2J 4Contact SDK with clock relay 2J is attempted by SB 2Two ends on.
Control circuit and protective circuit all are the control main circuits, at first operate change over switch LK when needs move 1And LK 2, then press SB 1Start, and then press SB 2Realize the main circuit running status.Protection blocking relay tQ, hQ action when main circuit breaks down, and then control relay KA, KA in the cut-out control circuit 1, KA 2Power supply, main circuit outage is shut down.
The automatic air-break switch ZK that closes earlier during starter motor D then operates change over switch LK 1, LK 2, it is electric that main contactor KM coil is got, and makes main contact KMJ closed motor D not.Then meet down SB 1, this moment, Control current was by X 3Terminal is through KA 2J 3Enter KA 1, make KA 1.Through SDK 1J, SB 1, SB 2J constitutes the loop.KA 1Make KT after electric 2The KA of control branch road 1J 1The normal opened contact closure makes KT 2Coil gets electric, makes KT again 2Normal opened contact KT 2The J closure makes high torque (HT) main circuit contact device coil KM 1Must be electric, make the main contact KM of high torque (HT) main circuit 1J 1Closure makes the joint of motor D and the U in the binding post 1W 2-J 1, V 1U 2-J 2, W 1V 2-J 3Join, make U 3, V 3, W 3Open circuit has realized that the high torque (HT) of motor D starts.Then realize manually or automatically being transformed into the different low torque modes of connection, press SB in the time of manually 2, SDK in the time of automatically 2The J auto-closing, this moment, Control current was through X 3To KA 1J 3, arrive KA again 2, again through SB 2Or SDK 2J and SB 1J is to X 1Form the loop.This moment KA 2Coil gets electric, makes KA simultaneously 2J 2Closure makes KM 3Coil gets electric, makes the contactor KM of low torque 3Main contactor KM 3J 3Closure is finished the conversion of motor D low torque wiring.While KA 2J 1The normally opened contact closure makes KT 2Coil gets electric, simultaneously KT 2The timing closing of J normally opened contact makes KM 1Must be electric, send electricity for the wiring that is transformed into low torque motor D, make motor realize low torque operation operating state.The conversion of other several torques therewith roughly the same, the wiring during the various torque of motor D binding post is as shown in the table.
High torque (HT) Middle torque Middle low torque Low torque
U 1W 2-J 1 U 1-J 1 U 2-J 1 U 1-J 1
V 1U 2-J 2 V 1-J 2 V 2-J 2 V 1-J 2
W 1V 2-J 3 W 1-J 3 W 2-J 3 W 1-J 3
U 2V 3W 3Open circuit W 3U 2 U 3V 1 U 2V 2W 2-DY
U 3V 2 V 3W 1 U 3V 3W 3Open circuit
V 3W 2 W 3U 1

Claims (2)

1, slip motor energy saving devices, it comprises main circuit, protective circuit, it is characterized in that it also comprises control circuit, conversion contact coil KM 1A termination 3FU, KM 1Another termination KT 2The movable contact of J, KT 2The break of J meets KAJ 5Movable contact; Time relay KT 2A termination 3FU, KT 2Another termination KA 1J 1, KA 2J 1Movable contact, KA 1J 1And KA 2J 1Break meet KAJ 5Movable contact; Conversion contact coil KM 2A termination 3FU, KM 2Another termination KA 1J 2Movable contact, KA 1J 2Break meet KAJ 5Movable contact; Conversion contact coil KM 3A termination 3FU, KM 3Another termination KA 2J 2Movable contact, KA 2J 2Break meet KAJ 5Movable contact; KA 2J 3Movable contact meet 3FU, KA 2J 3Break meet control relay KA 1An end, KA 1The SDK of another termination clock relay 1The end of J, SDK 1Another termination contact button SB of J 1An end, SB 1Another termination SB 2The end of J, SB 2Another termination KAJ of J 5Movable contact; SB 1Also and then KA of two ends 1J 4KA 1J 3A termination 3FU, KA 1J 3Another termination control relay KA 2An end, KA 2Another termination contact button SB 2An end, SB 2Another termination SB 1J, SB 1Another termination KAJ of J 5Movable contact; KA 2J 4Contact SDK with clock relay 2J is attempted by SB 2Two ends on.
2 slip motor energy saving devices according to claim 1 is characterized in that main circuit is by automatic air-break switch ZK, main contactor contact KMJ, connecting terminal block J 1, J 2, J 3, DY, conversion contactor contact KM 1J 1, KM 2J 1, KM 3J 1, motor D forms; Automatic air-break switch ZK is connected between 380V three-phase incoming line and the main contactor contact KMJ, and KMJ is connected on connecting terminal block J 1, J 2, J 3Lead-in wire terminal on, J 1, J 2, J 3Leading-out terminal switch through emat coil KM respectively 1Contact KM 1J 1Three breaks, KM 1J 1Three movable contacts meet the U of motor D respectively 1, V 1, W 1End, U 1, V 1, W 1End switches through emat coil KM again respectively 2Contact KM 2J 1Three breaks, KM 2J 1Three movable contacts meet the W of motor D again respectively 2, U 2, V 2End, W 2, U 2, V 2End switches through emat coil KM again respectively 3Contact KM 3J 1Three breaks, KM 3J 1Three movable contacts meet the V of motor D respectively 3, W 3, U 3End.
CN99213029U 1999-06-07 1999-06-07 Energy-saving device for slip motor Expired - Fee Related CN2378881Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN99213029U CN2378881Y (en) 1999-06-07 1999-06-07 Energy-saving device for slip motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN99213029U CN2378881Y (en) 1999-06-07 1999-06-07 Energy-saving device for slip motor

Publications (1)

Publication Number Publication Date
CN2378881Y true CN2378881Y (en) 2000-05-17

Family

ID=34005547

Family Applications (1)

Application Number Title Priority Date Filing Date
CN99213029U Expired - Fee Related CN2378881Y (en) 1999-06-07 1999-06-07 Energy-saving device for slip motor

Country Status (1)

Country Link
CN (1) CN2378881Y (en)

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