CN2178958Y

CN2178958Y - Multifunction electricity leakage trip apparatus

Info

Publication number: CN2178958Y
Application number: CN 93226333
Authority: CN
Inventors: 许光德
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-04-22
Filing date: 1993-09-18
Publication date: 1994-10-05
Anticipated expiration: 2003-09-18

Abstract

The utility model relates to a multifunction electricity leakage trip apparatus, belonging to a leakage current protector. In the utility model, a normally open and a normally closed conversion contact groups and the lead-out wire thereof are respectively arranged in the existing insulating shell, a zero sequence current mutual inductor, a control circuit, an electronic switch, an electromagnet, a linkage unit, a test apparatus, a connecting apparatus for assembly, and an electrically connecting leakage trip apparatus; the moving contact is driven by the linkage unit, a remote control circuit line is additionally arranged, and the control circuit line is led out by moving and static contact points of the test apparatus; an overvoltage circuit, an undervoltage circuit, and a phase lacking control circuit are respectively additionally arranged, and the overvoltage circuit, the undervoltage circuit, and the phase lacking control circuit are formed from a resistor voltage dividing circuit and a trigger; the utility model can electrically connected with a circuit breaker, a contactor, an alarm and a remote control button to form a multifunction combined device.

Description

Multifunction electricity leakage trip apparatus

The utility model relates to a kind of residual current operated protective device, particularly a kind of leakage tripping device.

At present, the structure of known leakage tripping device generally is to be assemblied in the insulation shell and electrical connection by zero sequence current mutual inductor, leakage control circuit, electronic switch, electromagnet, STATEMENT OF FEDERALLY SPONSORED, experimental rig, termination, and some also is provided with indicating device.The outer driving lever of STATEMENT OF FEDERALLY SPONSORED stretches out outside the housing, and during installation, outer driving lever stretches in the specific circuit breaker that is bolted together, and is electrically connected, and forms residual current circuit breaker.It can detect, differentiate electric leakage, the shock current of protected circuit; when it reached regulation, it is open-minded that leakage control circuit triggers electronic switch, and it is moving to make electromagnet have electricity to inhale; at this moment; electromagnet armature or moving iron core drive the STATEMENT OF FEDERALLY SPONSORED action, the outer driving lever action of STATEMENT OF FEDERALLY SPONSORED--and export mechanical signal, make circuit breaker tripping; divide deenergizing; play electric leakage, electrical shock protection, that is to say, leakage tripping device makes specific circuit breaker add creepage protection function.Raising along with electrifing degree; the user is to equipment, require to increase to the safeguard protection of the person; and a lot of equipment are controlled by common contactor; require to add electric leakage, electrical shock protection and overvoltage, under voltage or open-phase protection; some central control room requires to have remote dropout indication or remote control to thread off; some requires leakage-current alarm, and present leakage tripping device can not satisfy these different requirements.

The purpose of this utility model provides a kind of multifunctional electric leakage release, and it not only has earth leakage protective, and has overvoltage, under voltage or open-phase protection function; Not only can export mechanical signal and specific circuit breaker assembly unit and connect into multifunctional electric leakage circuit breaker, and can export the electric signal of contact switching, be electrically connected, form multifunctional combined apparatus with contactor, alarm, indicator light; Can also receive the remote control electric signal of input, can remote control thread off.

The purpose of this utility model is achieved in that in common leakage tripping device, sets up one group of change over contact, sets up a pair of remote control circuit, sets up overvoltage, under voltage or phase shortage control circuit.The structure of multifunctional electric leakage release is: in insulation shell, zero sequence current mutual inductor, leakage control circuit, electronic switch, STATEMENT OF FEDERALLY SPONSORED, experimental rig, termination assembling and electrical connection, one group of change over contact is set, the one end is fixed and is had lead to connect and draws, and moving contact is driven by STATEMENT OF FEDERALLY SPONSORED; A pair of remote control circuit line is set, draws by the dynamic and static contact of experimental rig; Overvoltage, under voltage or phase shortage control circuit are set, and they are made of resistor voltage divider circuit and trigger separately, are connected in parallel on the direct current pressure side after the divider resistance series connection, and the trigger input is connected with divider resistance, output is connected with the electronic switch control utmost point.During use, change over contact lead-out wire and composite set such as indicator light or contactor, alarm are electrically connected; The remote control circuit line is connected with the remote control button.When electric leakage, shock current appear in protected circuit, through zero-sequence transformer detection, leakage control circuit discrimination ratio, when reaching setting, the triggering electronic switch is open-minded, it is moving to make electromagnet have electricity to inhale, STATEMENT OF FEDERALLY SPONSORED action at this moment, and its outer driving lever makes the circuit breaker tripping that is bolted together, driving lever drives the moving contact conversion in it, normally closed interlock disconnects, and normally open contact is connected, and makes the corresponding change operating state of indicator light of composite set, the dropout lamp is bright, and work light goes out; If not assembly unit circuit breaker, and with separate tentaculum and be connected, then contactor disjunction, the dropout lamp is bright; If as warning device, then send alarm signal.During not assembly unit circuit breaker, outer driving lever is with on the cover cap cover, or replacing does not have the STATEMENT OF FEDERALLY SPONSORED of outer driving lever.When overvoltage, under voltage or phase shortage appearred in power supply, the divider resistance potential change was when reaching certain value, make the flip-flop states upset, the output positive potential, it is open-minded to trigger electronic switch, electromagnet is inhaled moving, with above-mentioned the same, makes circuit breaker or contactor etc. change operating state.When pushing the remote control button, as pushing the test button, a leakage current appears in simulation, and it is moving that electromagnet is inhaled, and circuit breaker or contactor are threaded off.

Owing to adopted such scheme; overvoltage, under voltage or open-phase protection function have just been increased as long as increase few components and parts; increased the electric signal output of contact switching; can also remote control thread off; increased function; enlarged the scope of application, functor also can be accepted or rejected as required, satisfies various users' demand neatly.

Below, in conjunction with the accompanying drawings and embodiments, the utility model is further described:

Fig. 1 is control system figure of the present utility model (is example with the assembly unit three-pole breaker)

Fig. 2 is control circuit figure of the present utility model (very routine with three)

Fig. 3 is the structural map of first embodiment

Fig. 4 is the A-A profile of Fig. 3

Fig. 5 is the structural map of second embodiment

Fig. 6 is the B-B profile of Fig. 5

Moving iron core of driving lever 7. electromagnet 7a. or armature 8. experimental rigs 9. lids 10. control circuit boards 11. zero sequence current mutual inductors 12. cover caps 13. remote control circuit line 14. overvoltage control circuits, 15. under voltages or phase shortage control circuit 16. electronic switches in the outer driving lever 6b. of frame shell 3. termination 3a. power supply lead wires 4. change over contact group 4a. moving contact 4b. change over contact lead-out wires 5. indicating device 5a. indication pieces 6. STATEMENT OF FEDERALLY SPONSORED 6a. in 1. main casings 2. among the figure

Among Fig. 1, zero sequence current mutual inductor 11, control circuit 10, electromagnet 7, termination 3, experimental rig 8 is electrically connected, and remote control circuit line 13 1 ends are connected with experimental rig 8 dynamic and static contacts, and an end is drawn housing, can external RPB; The power supply lead wire 3b of termination 3 can external equipped circuit breaker; The outer driving lever 6a of STATEMENT OF FEDERALLY SPONSORED can make circuit breaker tripping; Interior driving lever 6b can make moving contact 4a conversion; Change over contact connects lead 4b, can external composite set, as indicator light; But termination 3 external loads.

Among Fig. 2, overvoltage control circuit 14 is connected in parallel on the direct current pressure side after its divider resistance series connection, and trigger IC input links to each other with divider resistance, and output extremely links to each other with the control of electronic switch 16; Under voltage or phase shortage control circuit 15 are made up of two-stage divider resistance and trigger IC, the input of the output termination second level trigger IC of first order trigger IC, the control utmost point of second level output termination electronic switch 16.A, B, C, E, F, G, H are relevant position in the map interlinking 1 among the figure.IC1 and rectifier power source, resistance-capacitance circuit are formed leakage control circuit.

Among Fig. 3, zero sequence current mutual inductor 11, control circuit 10, electromagnet 7, STATEMENT OF FEDERALLY SPONSORED 6, termination 3, experimental rig 8, indicating device 5 is assemblied in the main casing 1, middle frame shell 2, in the lid 9, change over contact group 4 is a pair of normally closed, normally open contact, contact is made up of contact and conductive reed, conductive reed one end is inlaid in the narrow groove of main casing 1, the oblique normally closed interlock of moving contact reliably contacts by self elastic force, moving contact is than the stationary contact head height of both sides, and penetrate in the hole of interior driving lever 6b, electromagnet 7 has electricity to inhale when moving, the moving iron core 7a of its suction-type moves right, and STATEMENT OF FEDERALLY SPONSORED 6 turns right, and outer driving lever 6a stirs the circuit breaker tripping of assembly unit, interior driving lever 6b drive moving contact 4a turns to normally open contact and contacts, simultaneously, indication piece 5a projection, and make STATEMENT OF FEDERALLY SPONSORED 6 lockings.Contact lead 4b and remote control circuit line 13, power supply lead wire 3a are drawn by the hole between the two housings.When resetting, only need press indication piece 5a.

Among Fig. 4, outer driving lever 6a is stretched out by main casing 1 fenestra, and there is a cover cap 12 at the fenestra place, is installed on the housing 1 by boss, covers driving lever 6a, takes off during with the circuit breaker assembly unit.

Fig. 5, Fig. 6 are another embodiment, electromagnet 7 is clapper-types, its armature 7a and STATEMENT OF FEDERALLY SPONSORED 6 are riveted together, there is driving lever 6b in a side, in the narrow groove of frame shell 2, interior driving lever 6b stretched between normally closed interlock and moving contact 4a during the conductive reed of change over contact 4 was inlaid in, when electromagnet 7 is inhaled moving armature 7a, STATEMENT OF FEDERALLY SPONSORED 6 turns right together, and moving contact 4a is contacted with normally open contact; Contact line 4b, power supply lead wire 3a and remote control circuit line 13 are drawn by main casing 1 side opening.

By above-mentioned application example as can be seen, the utility model in its structure, can have outer driving lever and interior driving lever simultaneously, also can have only an outer driving lever or an interior driving lever.Electromagnet can be a clapper-type, also can be suction-type.Functor can be accepted or rejected as required, can satisfy the needs of various occasions neatly.

Claims

1, a kind of multifunctional electric leakage release, in insulation shell, zero sequence current mutual inductor, leakage control circuit, electronic switch, electromagnet, STATEMENT OF FEDERALLY SPONSORED, experimental rig, termination assembling and electrical connection, it is characterized in that: one group of change over contact, the one end is fixed and is had lead to connect and draws, and moving contact is driven by STATEMENT OF FEDERALLY SPONSORED; A pair of remote control circuit line is drawn by the dynamic and static contact of experimental rig; Overvoltage, under voltage or phase shortage control circuit, they are made of resistor voltage divider circuit and trigger, are connected in parallel on the direct current pressure side after the divider resistance series connection, and the trigger input is connected with divider resistance, and output is connected with the electronic switch control utmost point.

2, multifunctional electric leakage release according to claim 1 is characterized in that: change over contact is one group of normally closed, normally open contact, and contact is made up of contact and conductive reed, and conductive reed is inlaid in the narrow groove of housing, and the oblique normally closed interlock of moving contact electrically contacts.

3, multifunctional electric leakage release according to claim 1 is characterized in that: STATEMENT OF FEDERALLY SPONSORED can have an outer driving lever and an interior driving lever simultaneously, also can have only an outer driving lever or an interior driving lever.

4, multifunctional electric leakage release according to claim 1 is characterized in that: the outer driving lever movable span place at housing, a cover cap is arranged, and there is small boss at its edge, is installed on the housing bore place.

5, multifunctional electric leakage release according to claim 1 is characterized in that: electromagnet can be a clapper-type, also can be suction-type.