CN201166934Y

CN201166934Y - Control demonstration machine for circuit breakers

Info

Publication number: CN201166934Y
Application number: CNU2007201598713U
Authority: CN
Inventors: 孟瑞祥; 鲁鹏; 刘明明; 李福斌; 许红燕; 徐西德; 董梅
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-12-29
Filing date: 2007-12-29
Publication date: 2008-12-17
Anticipated expiration: 2017-12-29

Abstract

The utility model relates to a circuit breaker control presenter in the teaching field of simulation experiment. The technical proposal mainly comprises a box body and electrical components. The electrical components are arranged in the box body and comprise two power supplies, that is, a 220V AC power supply and a 220V DC power supply; the wire connecting terminals of the two power supplies are in parallel connection; a bridge rectifier is arranged on the circuit of the AC power supply; a plurality of presentation circuits are connected to the output loop of the bridge rectifier and pass by safety fuses; and presentation switches corresponding to the presentation circuits are connected to the box body. The circuit breaker control presenter has the advantages of simple structure principle, easy learning, durability, reliable action and low manufacturing cost, can simulate each action process between a high voltage circuit breaker and relay protection, and has the same presentation device of acoustic, photo, etc. signal indication as the actual operation field.

Description

Isolating switch control demonstration device

One, technical field:

The utility model relates to a kind of primary cut-out l-G simulation test instructional device, particularly relates to the isolating switch control demonstration device of functions such as a kind of tripping operation of adopting signal imitation primary cut-outs such as sound, light, combined floodgate, accident alarming.

Two, background technology:

At present; domestic all kinds of electric power professional universities and colleges is in carrying out problem teaching such as primary cut-out and substation relay protection; what mainly carry out is telling about of Specialized Theory aspect; seldom have ready conditions and carry out on the spot field practice; practise even have ready conditions; also because reasons such as high-tension apparatus is bulky, of a great variety, complex structures; can't move the primary cut-out of on-the-spot actual motion and the various control operation functions of relay protection to classroom, more can't in the laboratory, carry out the simulated maneuver of exercises process between isolating switch and the relay protection.Domestic some power equipment manufacturer is in product introduction; carry out the demonstration equipment of course of action between isolating switch and the relay protection; the technology manufacturings of using such as single chip microcomputer, integrated circuit of mostly adopting form; its complex structure; the volume heaviness, consistency operation is loaded down with trivial details, poor anti jamming capability; and the high difficulty of repairing of cost, its price is often more than ten thousand yuan.By retrieval, do not see on the domestic electric power professional teaching teaching aid market that a kind of principle is arranged is simple, with low cost, and antijamming capability is strong, control of high-voltage circuit breaker function presentation device is easily repaired in debugging, does not also find this series products on the market.

Three, summary of the invention:

The purpose of this utility model is exactly the above-mentioned defective that exists at prior art; provide a kind of theory structure simple, cheap; can the simulated high-pressure isolating switch and relay protection between exercises process and have with the isolating switch of signals indications such as the on-the-spot identical sound of actual motion, light and control demonstration device; fill up the above-mentioned blank in the present electric power professional teaching, be implemented in and carry out the field practice teaching in the classroom, classroom.

Its technical scheme is: mainly be made up of casing and electric component, electric component is arranged in the casing, electric component comprises: two power supplys are 220V AC power and 220V direct supply, two power supply terminal parallel connections, on the circuit of AC power, be provided with rectifier bridge, on the output loop of rectifier bridge through insurance and be connected to a plurality of illustrative circuitry; On casing, be connected to respectively and the corresponding demonstration switch of each illustrative circuitry.

Optimized technical scheme is that described illustrative circuitry is through insurance and be connected to auxiliary reclay on the output loop of rectifier bridge, hummer and flashing relay, be connected to tripping relay, closing relay and auxiliary reclay by each contact of gauge tap, export a plurality of external circuits terminals;

Demonstration switch on described casing comprises red, green pilot lamp, involution button, test button and gauge tap; The normally closed contact of auxiliary reclay and the coil circuit of closing relay are connected in series, and the coil circuit of normal opened contact and tripping relay is connected in series; The normal opened contact of closing relay is connected in series with constituting with the coil of the normally closed contact of tripping relay and auxiliary reclay after the normal opened contact of auxiliary reclay is in parallel; The normal opened contact of tripping relay is connected with the gauge tap contact afterwards and the normal opened contact and the test button of auxiliary reclay form parallel circuit jointly.

The beneficial effects of the utility model are: its structural principle is simple, easily learn durable, reliable in action, low cost of manufacture, the action indicator signal meets on-the-spot actual operating state fully, and AC/DC may be used on each possible electric adjustment place; Can the simulated high-pressure isolating switch and relay protection between exercises process and the apparatus for demonstrating of indicating with signals such as the on-the-spot identical sound of actual motion, light is arranged; fill up the above-mentioned blank in the present electric power professional teaching, be implemented in and carry out the field practice teaching in the classroom, classroom.

Four, description of drawings:

Accompanying drawing 1 is circuit theory diagrams of the present utility model;

K-gauge tap among the figure, J41, J40, J42,7,33,100 external loop connection terminals, 1J, 2J-auxiliary reclay, 3J-tripping relay, the 4J-closing relay, 5J-flashing relay, the red pilot lamp of R3-, the green pilot lamp of R4-, the F-hummer, N1-involution button, N2-test button, R1, R2-power safety, 2,4,21,23,5,8,11,10,9,12,14,15,16,13,6,7,1,3,19, the connection terminal of 17-gauge tap K.

Five, embodiment:

For further disclosing the technical solution of the utility model, below in conjunction with accompanying drawing 1, the utility model is described in further detail:

The utility model is made up of casing and electric component, the circuit of this device is arranged in the casing, it is 220V AC power and 220V direct supply that its circuit is provided with two power supplys, two power supply terminal parallel connections, on the circuit of AC power, be provided with rectifier bridge, on the output loop of rectifier bridge through R1, the R2 insurance also is connected to auxiliary reclay 1J, hummer F, flashing relay 5J etc., each contact by gauge tap K is connected to tripping relay 3J, closing relay 4J and auxiliary reclay 2J, export six external circuits terminal J41, J40, J42,7,33,100, be connected to red on the casing respectively, green pilot lamp, involution button N1, test button N2, gauge tap K etc.; The normally closed contact 1J of auxiliary reclay 1J ₁Be connected in series normal opened contact 1J with the coil circuit of closing relay 4J ₂Be connected in series with the coil circuit of tripping relay 3J; Closing relay 4J normal opened contact 4J ₁With auxiliary reclay 1J normal opened contact 1J ₃The normally closed contact 3J of back in parallel and tripping relay 3J ₁And the coil of auxiliary reclay 1J formation is connected in series; The normal opened contact 3J of tripping relay 3J ₂Connect afterwards and the normal opened contact 2J of auxiliary reclay 2J with gauge tap K contact ₁And the N2 test button forms parallel circuit jointly.

Principle of work is: after the device energising, closing relay 4J coil and green light R4 constitute the loop by gauge tap K11,10 contacts, owing to making closing relay 4J not reach operation voltage, the dividing potential drop of green light R4 resistance is in not operating state, at this moment, green light sends out a warning and does not work, and simulates state behind circuit breaker trip.

When device prepared combined floodgate, gauge tap K11,10 contacts disconnected, and 9,10 contacts are connected, and flashing power source 100 is connected green light R4 loops, so green light begins flash of light.

When device mimic-disconnecting switch closing by hand, K5,8 connects, and the 220V rated voltage is added on the 4J coil, closing relay 4J action, its contact 4J ₁Closure starts auxiliary reclay 1J, wherein a pair of normal opened contact 1J after the auxiliary reclay 1J action ₃Play the self-sustaining effect, a pair of normally closed contact 1J ₁Disconnected the loop of closing relay 4J coil and green light R4, another is to normal opened contact 1J ₂Connect the wire loop of tripping relay 3J, the coil of tripping relay 3J and red light constitute the loop by K16,13 contacts, because the dividing potential drop effect of red light R3 resistance makes tripping relay 3J be in not operating state, at this moment, red light gives a green light and goes out, device has been finished the simulation "on" position, is in the back state that closes a floodgate.

When device prepared tripping operation, gauge tap K16,13 contacts disconnected, and 13,14 contacts are connected, and flashing power source 100 is connected red light R3 loop, so red light begins flash of light.

When the hand trip(ping) of device mimic-disconnecting switch, gauge tap K6,7 connects, and rated voltage is added in coil 3J and goes up (previous because 1J is in the self-sustaining operating state, its contact 1J always ₂Closed), 3J moves its normally closed contact 3J ₁Disconnected the wire loop of 1J, auxiliary reclay 1J returns, its normal opened

contact

1J ₂, 1J ₃Disconnect normally closed 1J ₁Closure, so tripping relay 3J returns, green light sends out a warning and goes out, device has been finished the simulation tripped condition, has got back to the virgin state after the tripping operation again.

When device mimic-disconnecting switch emergency stop valve trip, 33 terminals are connected "+" power supply, the 3J actuating of relay, and simultaneously owing to gauge tap K1,3,19,17, contact is closed behind combined floodgate, and this moment is through the normal opened contact 3J of tripping relay 3J ₂Connected the wire loop of auxiliary reclay 2J, wherein a pair of normal opened contact 2J after the auxiliary reclay 2J action ₁Play the self-sustaining effect, another is to normal opened contact 2J ₂Connected hummer F loop, so device is spoken, visual alarm, after manually pressing the self-holding circuit that involution button N1 disconnects auxiliary reclay 2J, just hummer return, for the quality of testing hummer has at any time been set up test button N2 as shown in FIG..

Shown in figure: will protect or control loop is gone to the closing loop 7 of isolating switch and 33 correspondences and met in the drawings connection terminal place; the tripping operation of analogue means outside or the order of closing a floodgate; its tripping operation feed motion process as mentioned above; simultaneously because the position of gauge tap K is not corresponding; can make red, green light provide corresponding flashing signal and buzzer warning signal, conform to fully with actual field ruuning situation.J41, J40 among the figure, J42 connection terminal for offer the outer protection starting recloser respectively, discharge loop is used, the user can select for use according to the actual learning situation.

QF (isolating switch) the demonstration device structural principle that constitutes by technique scheme is simple, Yi Xue is durable, reliable in action, low cost of manufacture, the action indicator signal meets on-the-spot actual operating state fully, and AC/DC may be used on each possible electric adjustment place.

Claims

1, a kind of isolating switch control demonstration device, it is characterized in that: mainly form by casing and electric component, electric component is arranged in the casing, electric component comprises: two power supplys are 220V AC power and 220V direct supply, two power supply terminal parallel connections, on the circuit of AC power, be provided with rectifier bridge, on the output loop of rectifier bridge through insurance and be connected to a plurality of illustrative circuitry; On casing, be connected to respectively and the corresponding demonstration switch of each illustrative circuitry.

2, isolating switch control demonstration device according to claim 1, it is characterized in that: described illustrative circuitry is through insurance and be connected to auxiliary reclay on the output loop of rectifier bridge, hummer and flashing relay, be connected to tripping relay, closing relay and auxiliary reclay by each contact of gauge tap, export a plurality of external circuits terminals;