CN2549636Y

CN2549636Y - Electromagnetic power transformer/motor high and low voltage comprehensive protective circuit breaker

Info

Publication number: CN2549636Y
Application number: CN 02267638
Authority: CN
Inventors: 张克辉
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-06-17
Filing date: 2002-06-17
Publication date: 2003-05-07
Anticipated expiration: 2012-06-17

Abstract

The utility model provides an electromagnetic power transformer or motor high and low voltage comprehensive protective circuit breaker, which is characterized in that a new-type breaker which enforces the comprehensive and integrated protection to the power supply equipment and the supply lines and has the function of a load switch is provided; the breaker has the functions of phase interruption of the high voltage, phase interruption of the low voltage, open circuit of the zero line, phase line of the zero line, short circuit overvoltage, line overload, line short circuit, line deep overvoltage, deep undervoltage and earth leakage protection. The utility model can be used as a load carrying breaker, and can also be used as a circuit integrated protector. An electromagnetic electrical leakage monitor uses an electromagnetic structure, an electromagnetic trigger is in the open-circuit working state, and thus, the utility model has the advantages of stable performance, energy saving, long lifetime and reliable working. The utility model uses a pulse-type electrical leakage monitor of monitoring the phase and the amplitude, and thus, the utility model can distinguish the electric shock of the human and the animal from the universality electrical leakage of the line and has reliability to protective objects.

Description

Electromagnetic type power transformer/motor high-low pressure integrated protection circuit breaker

Technical field

The utility model relates to the integrated protection on-load switch field of power transformer/motor high pressure and low pressure, is specially a kind of electromagnetic type power transformer/motor high-low pressure integrated protection circuit breaker.

Background technology

Present transformer/motor protection switch, because of it adopts the current mode working method, the automatic breaking of switch meeting after switching load cuts, and be with a plurality of loads to reduce protectiveness.And can only protect the low pressure phase failure, the open phase protection narrow range.Also because the phase voltage superpressure fault that causes because of the phase line zero line short circuit of three-phase and four-line supply line can not be protected and the zero line open circuit causes the phase voltage overvoltage not protect in application being limited to.

Summary of the invention

The purpose of this utility model provides and a kind ofly increases the function of improving this on-load switch on existing basis with overcurrent, short circuit control switch, make it to become and to guarantee transformer/motor, supply line and corresponding electricity supply and use equipment thereof technically, can not hinder for some reason and cause it to burn property is caused damage.Therefore this utility model is implemented comprehensive integrated protection to it, and has the function of on-load switch concurrently, and the one, go out three-phase high-voltage electric power transformer one sub-high pressure with accurate fast detecting, and three-phase transformer secondary low-voltage supply line hinders phase shortage for some reason.The utility model can be cut off the electricity supply at once.Three-phase transformer/threephase motor is implemented protection.The 2nd, can accurately detect rapidly because of low-voltage supply line phase line and zero line short circuit or the phase voltage 220V that causes because of the zero line open circuit and be raised to 380V.The utility model can fast detecting goes out and makes it the fast shut-off power supply.The 3rd, the utility model is provided with integrated protection functions such as overload, short circuit, magneto-electric electric leakage, dark under voltage, overvoltage.The anti-overvoltage of its electromagnetic type structure, energy-conservation, the life-span is long.Fundamentally solve the comprehensive Full Featured protection of the problem that power transformer/motor and other equipment burnt because of power supply power supply quality and fault and the release unit of break-make power supply load, electromagnetic type power transformer/motor high-low pressure integrated protection circuit breaker from the angle of technology.And establish the on-load switch device of handle operation.

The purpose of this utility model is achieved by the following technical solution, electromagnetic type power transformer/motor high-low pressure integrated protection circuit breaker, it is by having overload controller ZA, ZB, ZC and short circuit controller ISA, ISB, ISC and magneto-electric electric leakage watch-dog Fig. 1 VI; Switch tripping controller Fig. 1 V is formed, switch DZ Fig. 1 I.Can increase and decrease the switch that is combined into various difference in functionalitys to above-mentioned functions according to demand, increase Fig. 1 II on this basis, the phase failure signal monitor of Fig. 6 and Fig. 1 III high-low pressure phase failure controller.They are at its contact, c.d.e.s.x; T.q.u.y contact and make and break contact, A2, B2, C2 are corresponding respectively to be connected.Also can with the corresponding connection of other contact of switch.Fig. 1 IV, Fig. 9 zero line phase line short circuit overvoltage watch-dog and switch main circuit contact A4, B4, C4 corresponding connection respectively.Also can with the corresponding connection of other contact of switch main circuit.Winding of zero sequence current mutual inductor CL of the magneto-electric electric leakage watch-dog of Fig. 1 VI is connected in series in the switch main circuit.Its secondary winding directly is connected with magnetoelectricity trigger JL coil, is connected on respectively on the main circuit contact of Fig. 1 I after it triggers normally opened contact JL and the dropout winding Tk of the switch tripping controller of circuit breaker connects.Leak(age) test button N connects with the test current-limiting resistance and afterwards inserts on the corresponding contact of power supply input and output of zero-sequence transformer.

Advantage of the present utility model: function with high pressure, low pressure phase failure breaking circuit breaker disengagement failure power supply.Has zero line open phase electric voltage over press, zero phase line short circuit phase voltage over-voltage protecting function.Have three phase mains superpressure, dark under voltage protection function.Circuit breaker handle operation both can be made on-load switch, can do the single phase poaer supply equipment protection again, not only can do on-load switch with but also can do isolating switch usefulness.Magneto-electric electric leakage watch-dog adopts the electromagnetic type structure.Or adopt another kind of electric leakage watch-dog, can with the magneto-electric watch-dog displacement of leaking electricity, its function can be got an electric shock the line electrical leakage and the person separately.Thereby expand its function and protection reliability more reliably.Magneto-electric electric leakage watch-dog is open-circuit working.Not power consumption, stable performance, life-span are long.

Description of drawings

Fig. 1 is the utility model electrical schematic diagram, and I is switch DZ among Fig. 1; II is a phase failure signal monitor, and III is a high-low pressure phase failure controller, and IV is a zero line phase line short circuit overvoltage watch-dog; V is the switch tripping controller, and VI is a magneto-electric electric leakage watch-dog.Fig. 2, Fig. 3, Fig. 4 are for being with the relay of half-wave rectifier filter; Fig. 5 is the relay of band full-wave rectifier filter, and it is the corresponding substitute assembly electrical schematic diagram among II, III, the IV in Fig. 1.Fig. 6 is the replacement assemblies electrical schematic diagram of II among Fig. 1.Fig. 7 is the three-phase release of three windings in the same bobbin of Fig. 1 V, and perhaps three single-phase releases (discrete) and corresponding control relay thereof are often opened the control principle figure of control contact.Fig. 8 is three-phase release or two the discrete single-phase release electrical schematic diagram of jointly controlling circuit breaker and corresponding control relay normally opened contact thereof of two windings among Fig. 1 V in the magazine.Fig. 9 is the corresponding replacement circuit theory diagrams of Fig. 1 IV.II, III, IV can be contained in and make the modular assembly application in the shell among Fig. 1.I has magnetictrip, current overload controller ZA, ZB, ZC for switch DZ in the accompanying drawing 1.Short circuit controller ISA, ISB, ISC.Among the I: N1 is the zero line input terminal of three-phase and four-line power supply.A1 is an A phase power supply input wires terminal.B1 is a B phase power input terminal.C1 is a C phase power supply input wires terminal.A2, B2, C2 are that A, B, C phase moving contact and the power supply overload controller ZA of threephase switch DZ, the contact of ZB, ZC are respectively A3, B3, C3.N4 is the zero line binding post.A4, B4, C4 are the tie point of three-phase shortcircuit controller and magneto-electric electric leakage watch-dog VI.N5 is the zero line lead-out terminal.K1 is the utility model phase failure, function input, excision switch.A5, B5, C5 are respectively three-phase power output end.Accompanying drawing 1 II is a phase failure signal monitor.Its contact c, d, e respectively with switch A2, B2, C2 connects.Also can in the switch major loop, join by any corresponding contact.C1, C2, C3 are capacitor, can replace with resistor or inductor.D1-D6 is a diode.JA, JB, JC are relay.If adopt AC relay then respective diode and capacitor can.R is the contact of three branch roads.Accompanying drawing 1III is a high-low pressure phase failure controller.The contact that f, g, h are connected with A2, B2, C2 respectively.Also can on other corresponding contact of switch major loop, connect.C4, C5, C6 are capacitor.This capacitor can be substituted by inductor L or resistor R.JA is the normally-closed contact of the relay J A among the II.JB is the normally-closed contact of the relay J B among the II.JC is the normally-closed contact of the relay J C among the II.X, q, y are the tie points of three branch roads.D7, D8 are diode, and C18 is a filtering capacitor.JK is a relay.This relay is with the normally opened contact number to be with trip coil winding quantity to determine according to switch DZ.As then a pair of normally opened contact being arranged with 1 winding; Two windings should have 2 pairs of normally opened contacts, and three windings should be with 3 pairs of normally opened contacts.In order to obtain required contact, JK can obtain with a plurality of relays series connection or parallel connection, and perhaps relay band is many obtains the contact.Relay is as using AC relay, and diode and filter capacitor can.Accompanying drawing 1IV is a zero line phase line short circuit overvoltage watch-dog.I, j, k can be connected on any corresponding contact of switch main circuit.C7, C8, C9 are capacitor, can substitute with inductor or resistor.D9, D10 are diode, and C14 is a filtering capacitor.JD is a relay.As adopt AC relay D9, D10, C14 can.Fig. 1 V is the switch tripping controller.This controller is that single-phase release is formed.JD is the normally opened contact of zero line phase line short circuit overvoltage watch-dog relay J D among the IV.JL is that often the opening of magneto-electric trigger JL of magneto-electric electric leakage watch-dog VI triggered the contact.Fig. 1 VI is a magneto-electric electric leakage watch-dog.CL is a zero sequence current mutual inductor.RY is the leak(age) test current-limiting resistance.N is a test button.CLS is a filtering capacitor, and DL is a diode.JL is that the direct control switch DZ of magneto-electric trigger threads off.Fig. 2, Fig. 3, Fig. 4 are that halfwave rectifier filtering relay schematic diagram, Fig. 5 are full-wave rectifier filter relay schematic diagram.II, III that can be in Fig. 1, contact i, the r among the IV; O, r; P, r; Q, m; Switch between n, m.D DA, DB, DA1, DB1, DB2 are diode among the figure, and Cb, Cb1, Cb2, Cb3 are that capacitor, J1, J2, J3, J4 are relay.As can in above-mentioned figure, respective point inserting with AC relay.Fig. 6 is the another kind of form of Fig. 1 II phase failure signal monitor.Can switch at contact c, d, e place.Ca--Cg is a capacitor among Fig. 6.D1 '-D6 ' is a diode, and C10 '-C12 ' is a filtering capacitor.JA2, JB2, JC2 are relay.Its normally-closed contact JA2, JB2, JC2 can be in Fig. 1 III contact, s, x; T, q; Switch between u, y.Fig. 7 is the electrical schematic diagram of Fig. 1 V switch tripping controller.This controller is three-phase three winding controllers.Three electromagnetism winding TK1, TK2, TK3 can act on the same electromagnet in same framework.Also can become 3 separate types.JK1 is No. 1 normal contact of Fig. 1 III repeat circuit JK.JK2 is No. 2 normally opened contacts of JK.JK3 is No. 3 normally opened contacts of JK.JD is the normally opened contact of the relay J D among Fig. 1 IV.JL often opens the triggering contact for the JL's of magnetoelectricity trigger among Fig. 1 VI.Fig. 8 is the electrical schematic diagram of switch tripping controller among Fig. 1 V.This controller is three-phase two winding type controllers.Two electromagnetism can be in same magazine around fine horse TK1, TK2.Act on the same electromagnet, also can become 2 discretes.TK1 among Fig. 8 is No. 1 dropout winding.TK2 is No. 2 dropout windings.JK1 is No. 1 normally opened contact of JK among Fig. 1 III.JK2 is No. 2 normally opened contacts of Fig. 1 III repeat circuit JK.JD is the normally opened contact of figure IV repeat circuit JD, and JL is that often opening of magneto-electric electric leakage watch-dog triggered the contact.Fig. 9 can switch in contact A4, the B4 of Fig. 1 I, C4.Also can insert on other corresponding contact of corresponding switch main circuit.Contact JA1 is the normally opened contact of relay J A1 among Fig. 9.Contact JC1 is the normally opened contact of relay J C1, as adopts this electrical equipment to replace circuit among Fig. 1 IV, and the normally opened contact JD that replaces Fig. 1 V after then above-mentioned three normally opened contact parallel connections gets final product.A4, B4, C4, N1 are the main circuit contact of switch DZ.A4, B4, C4 are switch main circuit phase line contact among Figure 10, and N4 is the zero line contact, A5, B5, C5 switch phase line output contact, and N5 is the zero line output contact.1,2 is contact leak(age) test signal output terminal.3,4 is pulse leakage stimulus input terminal.5,6 is the functional switch contact, and 7,12 is phase line voltage input end, and 8 is the zero line input terminal.9,10 is the electric leakage signal input terminal.11 is switch release signal output terminal.JF supervises width of cloth pulse leakage watch-dog mutually for prison, and TK is a switch DZ release, and K0 is function input excision switch, and N1 is the leak(age) test button, and N2 is the pulse leakage test button.CL is a zero-sequence transformer.

Embodiment

The utility model electromagnetic type power transformer/motor high-low pressure integrated protection circuit breaker, it is made up of following electric function assembly unit: Fig. 1 V switch tripping controller, Fig. 1 .I current overload controller ZA, ZB, ZC.Fig. 1 I short circuit controller ISA, ISB, ISC.Fig. 1 II phase failure signal monitor.Fig. 1 III high-low pressure phase failure controller.Fig. 1 IV zero line phase line short circuit overvoltage controller.Fig. 1 VI magneto-electric electric leakage watch-dog.The C contact that it is characterized in that phase failure signal monitor Fig. 1 II capacitor C1 of electromagnetic type power transformer/motor high-low pressure integrated protection circuit breaker is connected with the A2 contact of switch DZ.The d point of capacitor C2 is connected with the B2 contact.The e point of capacitor C3 is connected with make and break contact C2.The c of capacitor C1, C2, C3, d, 3 of e can insert in corresponding other contact of switch main circuit.The c of capacitor C1, C2, C3, d, 3 of e can insert in corresponding other contact of switch main circuit.The L point of capacitor C1 is connected with the negative pole of two utmost point D2 with the positive pole of diode D1 and is connected.The negative pole of diode D1 is connected with the end of capacitor C10, also is connected with the end of relay J A.The other end of capacitor C10 also is connected on the asterism r after the negative pole of diode D2 is connected with an end of relay.0 positive pole with diode D3 of capacitor C2 is connected with diode D4 negative pole and is connected.The end of the negative pole of diode D3 and capacitor C11, one of relay J B terminates at together.The end of the other end of relay J B and capacitor C11 be connected on the asterism r after the positive pole of diode D4 is connected.The P point of capacitor C3 is connected with diode D5 is anodal, links together with diode D6 negative pole.The above-mentioned corresponding contact of phase failure signal monitor Fig. 1 II place can use Fig. 2, Fig. 3, the corresponding switching of Fig. 4, Fig. 5.Circuit among Fig. 1 II can replace with Fig. 6 or Fig. 9 circuit.But the N1 point should become the not contact r point of connecting to neutral line.

Capacitor CA, CB, Cc one terminate among Fig. 9 becomes an asterism together.The negative pole of another terminating diode D2 of capacitor CA and the positive pole of diode D1.The positive pole of the terminating diode D2 of relay J A1 and the end of capacitor C1.The negative pole of the other end of relay J A1 and diode D1, the end of capacitor C1 is connected on the switch DZ main circuit contact A4 after connecting.The negative pole of the other end of capacitor CB and diode D4, the positive pole of diode D3 connects.The end of relay J B1 and the negative pole of diode D4, the positive pole of diode D3 connects.The end of relay J B1 is connected with the end of capacitor C2 with the positive pole of two utmost point D4, its other end and capacitor C2 one end, and the negative pole of diode D3 is connected on the switch DZ main circuit road B4 after connecting.The positive pole of the other end of capacitor Cc and diode D6, the end of capacitor C3 connects, the negative pole of its other end and diode D5, the end of capacitor C3 is connected on the switch DZ main circuit C4 contact after connecting.

The circuit structure of Fig. 6 is as follows:

The end of the end of Fig. 6 repeat circuit JA2, JB2, JC2 and capacitor C10 ', C11 ', C12 ', the positive pole of diode D2 ', D4 ', D6 ' connects.The end of the other end of relay J A2 and capacitor C10 ', the negative pole of diode D1 ' connects, and the positive pole of diode D1 ' is connected with the end of capacitor Ca, Cb with the negative pole of diode D2 '.One of capacitor Ca and Cf is terminated at the main circuit contact A2 that is connected to switch DZ behind the C point.The end of the other end of relay J B2 and capacitor C11 ', the negative pole of diode D3 ' connects, the negative pole of the positive pole of diode D3 ' and diode D4 ' and capacitor Cf, the end of Cg connects, and the other end of capacitor Cg and one of capacitor Ce are terminated at the e point and are connected with the contact of the main circuit C2 of switch Dz.The other end of relay J C2 is connected with the negative pole of diode D5 ' with the end of capacitor C12 ', the negative pole of the positive pole of diode D5 and diode D6 and capacitor Cd, and Ce one end connects.Capacitor Cb is connected the back with the end of Cd at contact d and inserts on the main circuit contact B2 of switch Dz.

Fig. 1 III is a high-low pressure phase failure controller.The f point of capacitor C4 is connected with the contact of B2.The g contact of capacitor C5 is connected with the A2 contact.The h contact of capacitor C6 is connected with the contact C2 point of switch DZ.The end of normally closed some JA of the S contact of capacitor C4 and the relay J A of Fig. 1 II is connected JA other end x contact and is connected to the q point.One of the normally-closed contact JB of the other end t point of capacitor C5 and the relay J B of Fig. 1 II is terminated at the q point.The other end u contact of capacitor C6 is connected with the normally closed some JC of the relay J C of Fig. 1 II, and JB other end y contact is connected with the q point.The q contact is connected with the positive pole of diode D7, is connected with the negative pole of diode D8.The negative pole of diode D7 is connected with the end of relay J K with the end of capacitor C14 and is connected.The end of its other end and capacitor C14, the positive pole of diode D8 are connected the Φ contact and are connected on the m contact of Fig. 1 IV, and the circuit between contact q, the Φ of Fig. 1 III can use the circuit of Fig. 2, Fig. 3, Fig. 4, Fig. 5 to switch by corresponding contact.Capacitor C4, C5, c6 can insert displacement with inductor or resistor.Capacitor C4 and relay J A normally-closed contact, capacitor C5 and relay J B, capacitor C6 and relay J C wiring position can be replaced.Fig. 1 IV is a zero line phase line short circuit overvoltage watch-dog.The i contact of capacitor C7 is connected with the A4 contact of switch DZ.The J contact of capacitor C8 is connected with switch DZ contact B4.The K contact of capacitor C9 is connected with switch main circuit C4 contact.The other end of capacitor C7, C8, C9 is connected to the n point together.This point also is connected with diode D9 is anodal, and also the negative pole with diode D10 is connected.The negative pole of diode D9 is connected with the other end of capacitor C14, and is connected to the m point after the positive pole of diode D10 is connected.The m point is connected with the utmost point of function fling-cut switch K1, and the time spent can be with its short circuit when this switch.Circuit between contact n, m contact can be used the circuit displacement of Fig. 2, Fig. 3, Fig. 4, Fig. 5.Fig. 9 can alternate figures 1IV circuit.The N1 contact should be connected with the m point.Can constitute the three-phase and four-line release with 3 separate single-phase winding release TK1, TK2, TK3 among Fig. 7.Can with on the electromagnet around 3 independently winding TK1, TK2, TK3.On the main circuit contact A2 of the termination switch DZ of release winding TK1, the end of No. 1 normally opened contact JK1 of the relay J K of its another termination high-low pressure phase failure controller III.Its other end and relay J K are that the end of No. 2 normally opened contact JK2 is connected, and the end of No. 3 normally opened contact TK3 connects.The other end of No. 2 normally opened contact JK2 is connected with release winding TK2 one end, and its another termination switch DZ main circuit contact B2 connects.The other end of No. 3 normally opened contact JK3 is connected with release winding TK3 one end, and the other end is connected with switch DZ main circuit contact C2.Often the opening of magneto-electric trigger JL of the normally opened contact JD of the relay J D of zero line phase line short circuit overvoltage watch-dog IV and magneto-electric electric leakage watch-dog VI triggered contact JL parallel connection, connects the back and is connected in parallel with relay normally open contact JK1, the JK2 of high-low pressure phase failure controller III, any one normally opened contact of Jk3.

Fig. 1 VI is a magneto-electric electric leakage watch-dog.The V point of zero-sequence transformer CL connects the end of capacitor CLS and is connected the back with magneto-electric trigger JL one end and is connected with switch DZ zero line N4 point.The end of zero sequence current mutual inductor CL is connected with the positive pole of diode DL with the end of capacitor CLS, and its negative pole is connected with magneto-electric trigger JL one end.Test current-limiting resistance Ry one end is connected with switch DZ main circuit contact C4, and its other end is connected with 1 of test button.2 of test button N are connected with the B5 contact.The triggering contact JL one termination release winding TK other end of often opening of magneto-electric trigger is connected with switch DZ main circuit zero line N4 contact.Winding of zero sequence current mutual inductance is connected in the switch DZ main circuit.

Fig. 1 V is the switch tripping controller.The end of tripping coil TK is connected with the A2 point of switch DZ main circuit.An end was connected with the end of tripping coil Fig. 1 V release TK after the normally opened contact J of relay J K among the normally opened contact JD of relay J D among Fig. 1 IV and Fig. 1 III and the magneto-electric trigger JL among Fig. 1 VI often opened and trigger contact JL parallel connection.Zero line in its another termination switch DZ main circuit or connect other contact of the main line of switch DZ main circuit except that the A2 contact.

Fig. 7 is the three-phase tripping controller.This circuit can alternate figures 1V by connecing that period switch to insert, and needs the relay J K of Fig. 1 III to have 3 groups of normally opened contacts, JK1, Jk2, JK3.

Fig. 8 is a three-phase dropout control circuit.This circuit can alternate figures 1V by connecing that period switch to insert, and needs Fig. 1 III relay J K to have 2 groups of normally opened contacts, JK1, JK2.The three-phase two winding switch tripping controller V of Fig. 8, its release winding TK1, TK2 are on same electromagnet.Also can be with 2 releases independently, common control switch DZ.The end of winding TK1 be connected on the switch DZ main circuit A2 contact after the end of winding TK2 is connected.Its winding TK1 is connected on the end of No. 1 normally opened contact JK1 of high-low pressure phase failure controller III relay J K, and the other end is connected with switch DZ main circuit contact B2.Winding TK2 is connected on No. 2 normally opened contact JK2 one ends of high-low pressure phase failure controller III relay J K, and its other end is connected with switch DZ main circuit contact C2.The normally opened contact JD of the relay J D of zero line phase line short circuit overvoltage watch-dog IV and the normally opened contact JK of relay J K are connected in parallel.One end of the triggering contact JL one termination release of magneto-electric electric leakage watch-dog VI, contact N4, the B2 of its another termination switch DZ main circuit, C2 or one of them contact connection accordingly.Change prison into as magneto-electric electric leakage watch-dog VI and supervise width of cloth pulse leakage watch-dog mutually.Then winding of zero-sequence transformer switches at A4, B4, Cc, the N4 contact of switch DZ.

It among Fig. 2 the halfwave rectifier filter circuit and the circuit that cooperates of relay J 1.Two its both positive and negative polarities of diode DA, Db connect, and its contact can switch with l, o, p, q, n contact among Fig. 1.Anodal and capacitor Cb one end of diode DA, an end of relay J 1 connects.The other end of the other end of capacitor Cb and relay J 1, the negative pole of diode DB connects into a bit, and this point can switch by the rm point in Fig. 1.

Fig. 3 is the halfwave rectifier filter circuit and the circuit that cooperates of relay J 2.The end of capacitor Cb1, an end of relay J 2, the negative pole of diode DB1 is connected to become a bit, and this point can switch with l, o, p, q, n contact among Fig. 1.The other end of the other end of relay J 2 and capacitor Cb1, the positive pole of diode DA1 connects.The positive pole of the negative pole of diode DA1 and diode DB1 is connected into a bit, this point can be in Fig. 1 r, m point switch, Fig. 4 is the halfwave rectifier filter circuit and the circuit that cooperates of relay J 3.One end of relay J 3, the end of capacitor Cb2, the other end of relay J 3, the negative pole of diode DA2 links together, diode DA2 positive pole; The DB2 negative pole connects into a bit, can switch at r, m contact in Fig. 1, and Fig. 5 is a bridge rectifier filter circuit.Its A point can L, o, p, q, n point switch in Fig. 1, and the C point can r, m contact switch in Fig. 1; Its negative pole connects the end of capacitor Cb3, and an end of relay J 4 connects.Its positive pole is connected with the other end of capacitor Cb3 and the other end of relay J 4.

Electromagnetic type power transformer/threephase motor high-low pressure integrated protection circuit breaker, its parameter is: rated current 250A; Rated voltage: 380V, 50HZ; Residual operating current 0.2A, electric leakage non-operating current 〉=0.1A; Leak electricity 0.2 second operate time.Short circuit operating current 2500A.Overload current 100A～250A electric current is adjustable continuously.Phase line zero line short-circuit protection operation voltage 300V.Zero line open-circuit over-voltage operating value 300V.Operate time≤0.5 second.High pressure open phase protection (having), low pressure open phase protection (having), three-phase low-voltage value≤300V.Three-phase overvoltage operating value 〉=500V, the handle operation.Be provided with the function fling-cut switch.Take or leave according to required.

Button is pushed into the position that circuit breaker closes on the utility model operation handle.Circuit breaker promptly brings into operation.Functional switch K1 is put in and drops into the position, then every defencive function input, and when circuit (low pressure) leaked electricity, the electric leakage watch-dog sent and makes breaker open operation signal, breaker open operation.When circuit breaker transshipped, overload controller ZA, ZB, ZC cut off the electricity supply because of the bimetal leaf bending is taken off circuit breaker.The electromagnet of short circuit controller suction moving armature makes breaker open operation when the load circuit short circuit.Its phase voltage can produce the overvoltage of 380V when phase line zero line short circuit or open circuit.Zero line phase line short circuit overvoltage watch-dog sends sub-gate signal at once, makes the breaker open operation deenergization.When high pressure or low-voltage circuit broken string or blown fuse or other fault, phase failure signal monitor sends signal and makes the breaker open operation deenergization.Under-voltage deeply in utility model, press all separating brake outages but surpass, the utility model is realized power supply unit with technological means, the omnibearing protection of supply line.

Claims

1, electromagnetic type power transformer/motor high-low pressure integrated protection circuit breaker, it is by belt current overload controller ZA, ZB, ZC, short circuit controller ISA, ISB, the switch DZ/I of ISC, phase failure signal monitor II, high-low pressure phase failure controller III, zero line phase line short circuit overvoltage watch-dog IV, magneto-electric electric leakage watch-dog VI, and switch DZ tripping controller V, switch DZ with insulation crust forms, it is characterized in that: relay J A, JB, JC, capacitor C10, C11, the end of C12 and diode D2, D4, the positive pole of D6 is connected together, the negative pole of the positive pole of diode D1 and diode D2, one end of capacitor C 1 connects, its other end is connected on the main circuit A2 of switch DZ, the end of relay J A, one end of capacitor C 10, the negative pole of diode D1 is connected together; The other end of JB, the negative pole of the other end of capacitor C11 and diode D2 links together, the positive pole of diode D2, the negative pole of diode D4, one of capacitor C2 terminates at together, one is terminated on the main circuit B2 contact of switch DZ, the other end of the other end of relay J C and capacitor C12, the negative pole of diode D5 is connected together, the positive pole of diode D5, the negative pole of diode D6 is connected with the end of capacitor C3, its other end is connected with switch DZ main circuit contact C2, relay J K among the high-low pressure phase failure controller III, the end of one end and capacitor C13 and the positive pole of diode D8 are connected the back and are connected with the positive pole of K switch 1, the end of the other end of relay J K and capacitor C13, the negative pole of diode D7 connects, negative pole and the relay J A of diode D7 positive pole and diode D8, JB, one of the normally-closed contact of JC terminates at together.The other end of the normally closed some JA of relay J A is connected with capacitor C4 one end, its another termination switch DZ main circuit B2, another termination capacitor of the normally-closed contact JB of relay J B C5, on the contact A2 point of its another termination switch DZ, one end of the normally-closed contact of relay J C is connected with the end of capacitor C6, on the C2 contact of its another termination switch DZ, zero line phase line short circuit overvoltage watch-dog IV, the end of relay J D, the end of capacitor C14, the positive pole of diode D10 is connected to a bit, and back is connected with a utmost point of K switch 1, the other end of relay J D, the other end of capacitor C14, the negative pole of diode D9 links together, the positive pole of diode D9, the negative pole of diode D10 and capacitor C7, C8, the end of C9 links together, another termination of capacitor C7 is connected with the A4 point of switch DZ, the other end of capacitor C8 is connected with the B4 contact of switch DZ, the other end of capacitor C9 is connected with the C4 contact of switch DZ, magneto-electric electric leakage watch-dog VI, winding of zero-sequence transformer is serially connected with in the main circuit of switch DZ, its auxiliary winding one end be connected on the switch DZ main circuit N4 contact after the end of the end capacitor CLS of magneto-electric trigger JL is connected, its other end is connected with the negative pole of diode DL, the end of capacitor CLS is connected with diode DL is anodal with the other end of auxiliary winding, switch tripping controller V, its tripping coil TK, one end is connected with switch DZ main circuit A2 contact, and its other end is connected to normally opened contact JD, JK, end after JL is in parallel, one utmost point of its another termination K switch 1, and be connected with switch DZ zero line or phase line.

2, electromagnetic type power transformer according to claim 1/motor high-low pressure integrated protection circuit breaker, it is characterized in that phase failure signal monitor II, it is characterized in that: the C contact of capacitor C1 is connected with the A2 contact of switch DZ, the d point of capacitor C2 is connected with the B2 contact of switch DZ, the e contact of capacitor C3 is connected with the contact C2 that opens DZ, capacitor C1, C2, the c of C3, d, 3 of e can insert in corresponding other corresponding contact of switch DZ main circuit, the L point of capacitor C1 is connected with the negative pole of diode D2 with the positive pole of diode D1 and is connected, the negative pole of diode D1 is connected with the end of capacitor C10, also be connected with the end of relay J A, the other end of capacitor C10 also with after the positive pole of diode D2 is connected is connected on the asterism r with the end of relay J A, the O contact of capacitor C2 is connected with diode D4 negative pole with the positive pole of diode D3 and is connected, the end of the negative pole of diode D3 and capacitor C11, one of relay J B terminates at together, the end of the other end of relay J B and capacitor C11 be connected on the asterism r after the positive pole of diode D4 is connected, the P point of capacitor C3 was connected with anodal the connection with the negative pole of diode D6 of diode D5, the negative pole of diode D5 is connected the other end of relay J C and capacitor C12 with the end of capacitor C12 with the end of relay J C, after linking together, the positive pole of diode D6 is connected on the r contact; The another kind of structure of described phase failure signal monitor II, be main circuit contact A4 at switch DZ, B4, C4 switches, its circuit structure is capacitor CA, CB, CC one terminates at becomes an asterism together, the negative pole of another terminating diode D2 of capacitor CA and the positive pole of diode D1, the positive pole of the terminating diode D2 of relay J A1 and the end of capacitor C1, after being connected, the negative pole of another terminating diode D1 of relay J A1 and the end of capacitor C1 be connected on the switch DZ main circuit contact A4, the negative pole of the other end of capacitor CB and diode D4, the positive pole of diode D3 connects, the end of relay J B1 is connected with the end of capacitor C2 with the positive pole of diode D4, its other end and capacitor C2 one end, the negative pole of diode D3 is connected on the switch DZ main circuit B4 after connecting, the negative pole of the other end of capacitor CC and diode D6, the positive pole of D5 connects, the end of relay J C1 and the positive pole of diode D6, the end of capacitor C3 connects, the negative pole of its other end and diode D5, the end of capacitor C3 is connected on the switch DZ main circuit C4 contact after connecting; Described phase failure signal monitor II also can switch at main circuit contact A2, B2, the C2 of switch DZ; Another circuit connecting mode, relay J A2, JB2, the end of JC2 and capacitor C10 ', C11 ', the end of C12 ', diode D2 ', D4 ', the positive pole of D6 ' connects, the end of the other end of relay J A2 and capacitor C10 ', the negative pole of diode D1 ' connects, the negative pole of the positive pole of diode D1 ' and diode D2 ' and capacitor Ca, the end of Cb connects, one of capacitor Ca and Cf is terminated at the main circuit contact A2 that is connected to switch DZ behind the C point, the end of the other end of relay J B2 and capacitor C11 ', the negative pole of diode D3 ' connects, the negative pole of the positive pole of diode D3 ' and diode D4 ' and capacitor Cf, the end of Cg connects, the other end of capacitor Cg and one of capacitor Ce are terminated at contact e and are connected with the contact of the main circuit C2 of switch DZ, the other end of relay J C2 is connected with the negative pole of diode D5 ' with the end of capacitor C12 ', the negative pole of the positive pole of diode D5 ' and diode D6 and capacitor Cd, Ce one end connects, and capacitor Cb is connected the back with the end of Cd at contact d and inserts on the main circuit contact B2 of switch Dz.

3; electromagnetic type power transformer according to claim 1/motor high-low pressure integrated protection circuit breaker; the f contact that it is characterized in that capacitor C4 among the high-low pressure phase failure controller III is connected with the B2 contact of switch Dz; the g contact of capacitor C5 is connected with the A2 contact of switch Dz; the h contact of capacitor C6 is connected with the contact C2 of switch Dz; the S contact of capacitor C4 is connected with the end of the normally closed some JA of relay J A; JA is that an end X contact is connected to the q point; the other end t contact of capacitor C5 is connected with the normally-closed contact JC of relay J B; the other end of JC is connected to the q point; the other end U contact of capacitor C6 is connected with the normally closed some JB of relay J c; JB other end y contact is connected with the q contact; the q contact is connected with the positive pole of diode D7; be connected with the negative pole of diode D8; the end of the negative pole of diode D7 and capacitor C13; the end of relay J K connects the positive pole of diode D8 and the end of relay J K; the capacitor C13 other end connects the back and connects at the φ contact; be connected to again on the m contact; capacitor C4; C5; C6 can replace with inductor or resistor; capacitor C4 and relay normally-closed contact JA; capacitor C5 and relay normally-closed contact JB, capacitor C6 and relay normally-closed contact Jc position can exchange.

4, electromagnetic type power transformer according to claim 1/motor high-low pressure integrated protection circuit breaker, it is characterized in that zero line phase line short circuit overvoltage watch-dog IV, the contact i of capacitor C7 is connected with the A4 contact of switch DZ, the j contact of capacitor C8 is connected with switch DZ contact B4, the K contact of capacitor C9 is connected with switch main circuit C4 contact, capacitor C7, C8, the other end of C9 is connected in the n point together, this point also is connected with diode D9 is anodal, also be connected the negative pole of diode D9 and the end of capacitor C14 with the negative pole of diode D10, be connected with the end of relay J D, the other end of relay J D is connected with the other end of capacitor C14, with be connected on the m contact after the positive pole of diode D10 is connected, the m point is connected with a utmost point of function input excision K switch 1, the time spent can be with its short circuit when this switch, contact n, the circuit between the m contact can be replaced with the relay of half-wave or full-wave rectifier filter circuit; The another kind of circuit structure of described zero line phase line short circuit overvoltage watch-dog IV also can be terminated at the N1 contact by one of capacitor CA, CB, CC, the N1 contact is connected with the m contact, the m contact is connected on switch DZ main circuit zero line N1 point by K1, or directly is connected with switch zero line N1 point; The negative pole of another terminating diode D2 of capacitor CA and the positive pole of diode D1, the positive pole of the terminating diode D2 of relay J A1, the end of capacitor C1, the negative pole of the other end of relay J A1 and diode D1, the end of capacitor C1 is connected on the switch DZ main circuit contact A4 contact after connecting, the negative pole of the other end of capacitor CB and diode D4, the positive pole of diode D3 connects, the end of relay J B1 is connected with the end of capacitor C2 with the positive pole of diode D4, its other end be connected on the switch DZ main circuit B4 contact after the negative pole of the end diode D3 of capacitor C2 is connected, the negative pole of the other end of capacitor CC and diode D6, the positive pole of D5 connects, the end of relay J C1 and the positive pole of diode D6, the end of capacitor C3 connects, its other end and capacitor C3, the negative pole of diode D5 is connected on the switch DZ main circuit C4 contact after connecting.

5; electromagnetic type power transformer according to claim 1/motor high-low pressure integrated protection circuit breaker; it is characterized in that described magneto-electric electric leakage watch-dog VI; the V contact of its zero-sequence transformer CL connects the end of capacitor CLS and is connected the back with magneto-electric trigger JL one end and is connected with switch DZ zero line N4 point; the end of the other end of zero sequence current mutual inductor CL and capacitor CLS; the positive pole of diode DL connects; its negative pole is connected with magneto-electric trigger JL one end; test current-limiting resistance RY one end is connected with switch DZ main circuit contact C4; its other end is connected with 1 of test button; 2 contacts of test button N are connected with the B5 contact; often opening of magneto-electric trigger triggers contact JL one termination release winding TK; the other end is connected with switch DZ main circuit zero line N4, and winding of instrument transformer is serially connected in the switch main circuit.

6, electromagnetic type power transformer according to claim 5/motor high-low pressure integrated protection circuit breaker is characterized in that the magneto-electric trigger JL among the described magneto-electric electric leakage watch-dog VI is that magnetoelectricity is rotary.

7, electromagnetic type power transformer according to claim 1/motor high-low pressure integrated protection circuit breaker is characterized in that the another kind of mode of connection of described magneto-electric electric leakage watch-dog VI is with prison phase, supervises width of cloth pulse leakage controller and place in the switch case and be provided with leak(age) test button N1, pulse leakage test button N2.

8, electromagnetic type power transformer according to claim 1/motor high-low pressure integrated protection circuit breaker, an end that it is characterized in that the tripping coil TK among the described switch tripping controller V is connected with the A2 point of switch DZ main circuit, the normally opened contact JK of relay J K among the normally opened contact JD of relay J D among the zero line phase line short circuit overvoltage watch-dog IV and the high-low pressure phase failure controller III is connected with the end of tripping coil TK with an end after often opening of magneto-electric trigger JL triggered contact JL parallel connection, zero line in its another termination switch DZ main circuit perhaps connects switch DZ main circuit C4 contact; The another kind of scheme of described switch tripping controller V is provided with 3 groups of normally opened contacts at high-low pressure phase failure controller III repeat circuit JK, JK1, JK2, JK3 and separate single-phase winding TK1, TK2, TK3 constitutes the three-phase and four-line release, three winding TK1, TK2, TK3 can be with being around on the electromagnet, also can adopt TK1, TK2, three releases of TK3 are controlled circuit breaker jointly, on the main circuit contact A2 of the termination switch DZ of release winding TK1, the end of No. 1 normally opened contact JK1 of the relay J K of its another termination high pressure phase failure controller III, No. 2 normally opened contact JK2 of the other end of JK1 and relay J K, the end of No. 3 normally opened contact J3 connects, the other end of JK2 is connected with release winding TK2 one end, its another termination switch DZ main circuit B2 contact connects, the other end of No. 3 normally opened contact JK3 is connected with release winding TK3 one end, and the other end is connected with switch DZ main circuit contact C2.The magneto-electric trigger JL of the normal shape contact JD of the relay J D of zero line phase line short circuit overvoltage watch-dog IV and magneto-electric electric leakage watch-dog VI often opens and is connected in parallel with relay normally open contact JK1, the JK2 of high-low pressure phase failure controller III, the normally opened contact of JK3 after triggering contact JL is connected in parallel; Described switch tripping controller V, also can adopt three-phase three winding tripping controllers, two release winding TK1, TK2 are on same electromagnet, also can be with 2 common control switch DZ of discrete release, the end of winding TK1 be connected on the switch DZ main circuit A2 contact after the end of winding TK2 is connected; Its winding TK1 is connected on the end of No. 1 normally opened contact JK1 of high-low pressure phase failure controller III relay J K, the other end is connected with switch DZ main circuit contact B2, winding TK2 is connected on the end of No. 2 normally opened contact JK2 of high-low pressure phase failure controller III relay J K, its other end is connected with switch DZ main circuit contact C2, the normally opened contact JD of the relay J D of zero line phase line short circuit overvoltage watch-dog IV and the normally opened contact of relay J K are connected in parallel, one end of the triggering contact JL one termination release of magneto-electric electric leakage watch-dog VI, the contact N4 of its another termination switch DZ main circuit, V, B2, C2, B4, one of them contact of C4 connects.

9, described relay J A, JB, JC, JK, JD can adopt AC relay to substitute, its current rectifying and wave filtering circuit adopts the halfwave rectifier filter circuit, circuit structure 1 is two diode DA, DB, its anodal negative pole connects, its contact can with the L in the electrical principle, O, P, q, the n contact switches, anodal and capacitor Cb one end of diode DA, one end of relay J 1 connects, the other end of the other end of capacitor Cb and relay J 1, what the negative pole of diode DB connected into a bit can be at r, the m point switches, the another kind of mode of connection, the end of capacitor Cb1, one end of relay J 2, the negative pole of diode DB1 is connected to become a bit, this point can with L in the electrical principle, O, P, q, the n contact switches, the other end of relay J 2 is connected with the positive pole of the other end diode DA1 of capacitor Cb1, and the positive pole of the negative pole of diode DA1 and diode DB1 connects into a bit at r, the m point switches; An end of relay J 3 in addition, the end of capacitor Cb2, the positive pole of diode DB2 together links together, L in the electrical principle, O, P, q, the switching point of n, the end of capacitor Cb2, the other end of relay J 3, the negative pole of diode DA2 links together, diode DA2 positive pole, the DB2 negative pole is connected to become a bit, r in electrical principle, the m point switches, in the whole filter circuit of bridge-type the A point can be in electrical principle L, O, P, q, the n point switches, the C point can be at Fig. 1 r, the m point switches, its negative pole connects the end of capacitor Cb3, one end of relay J 4 connects, and its positive pole is connected with the other end of capacitor Cb3 and the other end of relay J 4.