CN104659746A - Comprehensive protection compensation control box for motor of agricultural motor-pumped well - Google Patents
Comprehensive protection compensation control box for motor of agricultural motor-pumped well Download PDFInfo
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- CN104659746A CN104659746A CN201410647465.6A CN201410647465A CN104659746A CN 104659746 A CN104659746 A CN 104659746A CN 201410647465 A CN201410647465 A CN 201410647465A CN 104659746 A CN104659746 A CN 104659746A
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- China
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- motor
- contactor
- circuit breaker
- alternating current
- comprehensive protection
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
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- Motor And Converter Starters (AREA)
Abstract
The invention relates to an agricultural facility, namely a comprehensive protection compensation control box for a motor of an agricultural motor-pumped well. The comprehensive protection compensation control box comprises the motor and a three-phase alternating current power supply and is characterized in that a circuit breaker QF, an alternating current contactor KM, an integrated protector JD, capacitors CE and a remote controller (4) are arranged in a box body (1) of the control box, wherein a three-phase alternating current power supply wire (2) is connected into the circuit breaker QF and the alternating current contactor KM, a motor load conducting wire (3) penetrates through the integrated protector JD and is connected to a load end of the alternating current contactor KM, three capacitors which are connected in parallel are connected between the alternating current contactor KM and the integrated protector JD, and a control circuit including remote control and manual control is connected between the circuit breaker QF and the alternating current contactor KM and the integrated protector JD. The comprehensive protection compensation control box has the benefits that the control box can be directly mounted between the power supply wire of the agricultural motor-pumped well and the motor for implementing protection, remote control and compensation on the motor, thereby realizing the unmanned motor-pumped well, avoiding faults, improving a power factor, improving voltage quality, performing comprehensive treatment on harmonic waves and the like of a power grid, realizing reactive power optimization of a power distribution network and greatly reducing the operation cost of the agricultural motor-pumped well.
Description
Technical field
The present invention relates to a kind of agricultural facility, i.e. a kind of pumping irrigation well electromotor integrated protection compensatory control case.
Background technology
The annex that the motor of existing farmland motor-pumped well is equipped with is very simple, and only have disconnecting link between power circuit to motor, disconnecting link shell easily comes off, operational hazards, and function singleness, lack protective device, easily break down.In addition, motor-pumped well motor is all without remote control, and because field is distant, the situation being difficult to water according to field controls the start-stop of motor.Therefore, existing motor-pumped well must have staff on duty, to solve produced problem at any time, causes the raising of manpower anxiety and cost.Particularly at spring and summer, farmland discharging-irrigating load Relatively centralized, inductive load switching in circuit is frequent, power factor is low and unstable, only leans on transformer station's centralized compensation and becomes platform with reactive-load compensation equipments such as device compensation, can not realize synchronous startup and compensate, and idle phenomenon is sent in existence, the limited efficiency improved, Rural Power Distribution Network no-power vacancy is still very large, and quality of voltage is lower.From prior art; the protection of motor, remote control and compensation have the method for many maturations; but still lack the special product that can be directly installed on pumping irrigation well, and peasant household is also difficult to develop voluntarily and assemble this kind equipment, thus the problems referred to above are never well solved.
Summary of the invention
The object of this invention is to provide one and can have protective effect to pumping irrigation well motor, and be convenient to the control of motor, the device of reactive power compensation can be implemented motor.
Above-mentioned purpose is realized by following technical scheme: develop a kind of pumping irrigation well electricity integrated protection compensatory control case, comprise motor and three-phase alternating-current supply, be characterized in: in the casing of described control cabinet, be provided with circuit breaker, A.C. contactor, comprehensive protection device, capacitor, remote controller, described three-phase ac power cord access circuit breaker and A.C. contactor, motor load wire is connected to the load end of A.C. contactor through comprehensive protection device, three shunt capacitances are picked out between A.C. contactor and comprehensive protection device, between circuit breaker and A.C. contactor and comprehensive protection device pick out and comprise remote control and manual control circuit.
Described circuit breaker is the DZ47-60/3P/63A circuit breaker being provided with earth leakage protective device.
Described A.C. contactor is CJT1-40A/380V A.C. contactor.
Described comprehensive protection device is JD-5/380V comprehensive protection device.
Described capacitor is BKMJ0.5-5.0-3 type self-healing type parallel condenser.
The invention has the beneficial effects as follows: this control cabinet can directly be installed between the power line of pumping irrigation well and motor; protection, remote control and compensation are implemented to motor; motor-pumped well unattended operation can be realized; avoid fault; improve power factor, improve quality of voltage, the comprehensive regulation is carried out to Distribution Network Harmonics etc.; realize GA for reactive power optimization, significantly reduce the operating cost of pumping irrigation well.
Accompanying drawing explanation
Fig. 1 is a kind of front view of embodiment;
Fig. 2 is the circuit diagram of this embodiment.
Visible in figure: casing 1, power line 2, motor load wire 3, remote controller 4, circuit breaker Q F, A.C. contactor KM.Capacitor CE; comprehensive protection device JD, fuse RC, remote controller normally-closed contact K1, button (opening) SB, button (pass) SS, remote controller normally opened contact K2, contactor main contacts K3, the long closed contact JD ' of protector, contactor coil KM ', relay indicating light HL.
Execution mode
The total design of the present invention be install between the motor and power line of pumping irrigation well a kind of have protect, the control cabinet of remote control and reactive power compensator.A kind of embodiment is introduced below in conjunction with accompanying drawing:
Embodiment: Fig. 1 introduces a kind of pumping irrigation well electromotor integrated protection compensatory control case, and the casing 1 that this control cabinet has boxboard to surround, is provided with the devices such as circuit breaker Q F, A.C. contactor KM, comprehensive protection device JD, capacitor CE and remote controller 4 inside casing 1.The connected mode of composition graphs 2 each device visible: three-phase power line 2 accesses circuit breaker Q F and A.C. contactor KM; motor load wire 3 is connected to the load end of A.C. contactor KM through integrated protection JD device; between A.C. contactor KM and comprehensive protection device JD, pick out three shunt capacitance CE, between circuit breaker Q F and A.C. contactor KM and comprehensive protection device JD pick out control circuit.Wherein, circuit breaker Q F can adopt the DZ47-60/3P/63A circuit breaker being provided with earth leakage protective device.Its effect is the break-make controlling whole circuit power, and when load side electric leakage or unexpected ground connection, can cut off general supply, prevent the person from getting an electric shock and equipment leakage.A.C. contactor KM can adopt CJT1-40A/380V A.C. contactor.Comprehensive protection device JD adopts JD-5/380V comprehensive protection device.Comprehensive protection device JD has the defencive functions such as overcurrent, under-voltage, phase shortage, when electric current exceedes set point, voltage lower than setting or power phase shortage, can control A.C. contactor KM and disconnect main power source, prevent from burning out motor M.Capacitor CE adopts BKMJ0.5-5.0-3 type self-healing three phase parallel capacitor.The capacity of capacitor CE can be determined according to payload, and general 7.5KW motor can join 4-5Kvar electric capacity.The capacitor of this direct switching simultaneously in parallel with motor, can carry out reactive power compensation to motor, can make idlely not flow backwards, and guarantee the factor is lead to consumer's meritorous service is in hysteretic state all the time, is both conducive to user, and is also conducive to electrical network.Be conducive to reducing motor start starting current, reduce the spark of contactor, improve the reliability of control apparatus work, extend the useful life of motor and control appliance.Here fuse RC can protecting control circuit, and indicator light HL is used to refer to operating state.Control circuit comprises remote control and manual two parts circuit, and manually part has two control buttons, and button (opening) SB is for often to leave button, closed when pressing, button (pass) SS is normally closed button, disconnects when pressing, can the startup of Non-follow control motor and stopping.Remote control part has long-distance remote control assembly, longest distance reaches 3000 meters, be made up of reflector and receiver, reflector and hand-held remote controller, have switch two buttons, hand-held by operator, receiver is arranged in control cabinet, be responsible for the break-make controlling A.C. contactor KM, built-in two relays of receiver, have one group of normally-closed contact K
1with one group of normally opened contact K
2, contact is some flowing mode, and namely by remote controller buttons, corresponding relay contact does once opens or close action, then recovers original state.
During work, a phase power supply (upper right side) through fuse, remote controller normally-closed contact, button (pass) to button lower end, if now press the button (opening) SB or remote controller normally opened contact K
2adhesive, electric current can continue to form loop through protector long closed contact JD ' and contactor coil KM ' with another phase, and ac contactor coil KM ' work makes contactor KM normally opened contact K
3adhesive, relay indicating light HL lights, and motor M and capacitor CE is energized, and motor M brings into operation, even if now release button (opening) SB or remote controller normally opened contact K
2disconnect, due to A.C. contactor KM normally opened contact K
3adhesive, contactor coil KM ' can be energized work all the time, and therefore motor M can not power-off, completes the start-up course of motor.When motor rotation, press the button (pass) SS or control normally-closed contact K by remote controller buttons
1during disconnection, due to button (pass) SS and remote controller normally-closed contact K
1all be connected in control loop, therefore control loop will be disconnected, ac contactor coil KM ' power-off, and A.C. contactor KM playbacks, and A.C. contactor normally opened contact disconnects, even if now release button (pass) SS or remote controller normally-closed contact K
1closed, but due to A.C. contactor normally opened contact K
3first disconnect, control circuit can not form loop, and motor M and capacitor CR power supply disconnect, and complete the stopped process of motor.
Claims (5)
1. a pumping irrigation well electromotor integrated protection compensatory control case, comprise motor and three-phase alternating-current supply, it is characterized in that: in the casing (1) of described control cabinet, be provided with circuit breaker Q F, A.C. contactor KM, comprehensive protection device JD, capacitor CE, remote controller (4), described three-phase ac power cord (2) access circuit breaker Q F and A.C. contactor KM, motor load wire (3) is connected to the load end of A.C. contactor KM through comprehensive protection device JD, three shunt capacitances are picked out between A.C. contactor KM and comprehensive protection device JD, between circuit breaker Q F and A.C. contactor KM and comprehensive protection device JD pick out and comprise remote control and manual control circuit.
2. pumping irrigation well electromotor integrated protection compensatory control case according to claim 1, is characterized in that: described circuit breaker Q F is the DZ47-60/3P/63A circuit breaker Q F being provided with earth leakage protective device.
3. pumping irrigation well electromotor integrated protection compensatory control case according to claim 1, is characterized in that: described A.C. contactor KM is CJT1-40A/380V A.C. contactor KM.
4. pumping irrigation well electromotor integrated protection compensatory control case according to claim 1, is characterized in that: described comprehensive protection device JD is JD-5/380V comprehensive protection device JD.
5. pumping irrigation well electromotor integrated protection compensatory control case according to claim 1, is characterized in that: described capacitor CE is BKMJ0.5-5.0-3 type self-healing type parallel condenser CE.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410647465.6A CN104659746A (en) | 2014-11-14 | 2014-11-14 | Comprehensive protection compensation control box for motor of agricultural motor-pumped well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410647465.6A CN104659746A (en) | 2014-11-14 | 2014-11-14 | Comprehensive protection compensation control box for motor of agricultural motor-pumped well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104659746A true CN104659746A (en) | 2015-05-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410647465.6A Pending CN104659746A (en) | 2014-11-14 | 2014-11-14 | Comprehensive protection compensation control box for motor of agricultural motor-pumped well |
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| CN (1) | CN104659746A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020061371A (en) * | 2001-01-16 | 2002-07-24 | 엘지산전 주식회사 | Multi-functional hybrid contactor |
| CN201122928Y (en) * | 2007-11-09 | 2008-09-24 | 左松波 | Star-delta automatic switching energy-saving distributor of oil well motor |
| CN103457277A (en) * | 2013-09-06 | 2013-12-18 | 牡丹江电力电容器有限责任公司 | 1140V special intelligent control cabinet |
| CN203553903U (en) * | 2013-11-18 | 2014-04-16 | 刘品义 | Power motor protection device |
| CN204333924U (en) * | 2014-11-14 | 2015-05-13 | 国家电网公司 | Pumping irrigation well electromotor integrated protection compensatory control case |
-
2014
- 2014-11-14 CN CN201410647465.6A patent/CN104659746A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020061371A (en) * | 2001-01-16 | 2002-07-24 | 엘지산전 주식회사 | Multi-functional hybrid contactor |
| CN201122928Y (en) * | 2007-11-09 | 2008-09-24 | 左松波 | Star-delta automatic switching energy-saving distributor of oil well motor |
| CN103457277A (en) * | 2013-09-06 | 2013-12-18 | 牡丹江电力电容器有限责任公司 | 1140V special intelligent control cabinet |
| CN203553903U (en) * | 2013-11-18 | 2014-04-16 | 刘品义 | Power motor protection device |
| CN204333924U (en) * | 2014-11-14 | 2015-05-13 | 国家电网公司 | Pumping irrigation well electromotor integrated protection compensatory control case |
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Application publication date: 20150527 |
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| WD01 | Invention patent application deemed withdrawn after publication |