CN204706872U - A kind of temperature rise electric contact protective device of power high voltage switch cubicle fault - Google Patents

A kind of temperature rise electric contact protective device of power high voltage switch cubicle fault Download PDF

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Publication number
CN204706872U
CN204706872U CN201520411560.6U CN201520411560U CN204706872U CN 204706872 U CN204706872 U CN 204706872U CN 201520411560 U CN201520411560 U CN 201520411560U CN 204706872 U CN204706872 U CN 204706872U
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China
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breaker
circuit
high voltage
electric contact
voltage switch
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CN201520411560.6U
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林晓铭
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State Grid Corp of China SGCC
State Grid Fujian Electric Power Co Ltd
Nanping Power Supply Co of State Grid Fujian Electric Power Co Ltd
Shaowu Power Supply Co of State Grid Fujian Electric Power Co Ltd
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State Grid Corp of China SGCC
State Grid Fujian Electric Power Co Ltd
Nanping Power Supply Co of State Grid Fujian Electric Power Co Ltd
Shaowu Power Supply Co of State Grid Fujian Electric Power Co Ltd
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Abstract

The utility model relates to a kind of temperature rise electric contact protective device of power high voltage switch cubicle fault, comprises power high voltage switch cubicle, handcart circuit breaker, breaker outgoing line, instrument transformer, lightning arrester and breaker open operation coil, also comprise temperature rise electric contact controller and the connected infrared temperature measurement device 1 for measuring breaker outgoing line temperature, for measuring the infrared temperature measurement device 2 of instrument transformer external skin temperatures, for measuring the infrared temperature measurement device 3 of lightning arrester external skin temperatures, for controlling the A fault alarm loop that circuit breaker failure is reported to the police, for controlling the B fault alarm loop that mulual inductor malfunction is reported to the police, for controlling the C fault alarm loop that surge arrester failure is reported to the police, for controlling the D trip(ping) circuit of circuit breaker failure tripping operation, for controlling the E trip(ping) circuit of mulual inductor malfunction tripping operation, for controlling the F trip(ping) circuit of surge arrester failure tripping operation.The utility model achieves the on-line monitoring of power high voltage switch cubicle fault, has ensured the safe operation of power high voltage switch cubicle.

Description

A kind of temperature rise electric contact protective device of power high voltage switch cubicle fault
Technical field
The utility model relates to a kind of temperature rise electric contact protective device of power high voltage switch cubicle fault.
Background technology
Power high voltage switch cubicle inner high voltage circuit breaker, instrument transformer, the equipment such as lightning arrester and their outlet be energized run time, due to electricity, magnetic action can produce heat and heat up, and electric current is larger, and temperature is higher, works as primary cut-out, instrument transformer, when there is hot stall in lightning arrester, its heat also can conduct to rapidly its outlet and surface, when temperature is elevated to certain value, particularly at power switch cabinet inner high voltage circuit breaker, instrument transformer, lightning arrester transships at equipment, make moist or the situation such as loose contact time, equipment or outlet temperature anomaly can be caused to raise, now as reported to the police not in time, take measures, overheating fault can be caused to expand development, cause equipment, the catastrophe failure that circuit burns, and when occurring seriously to make moist at device interior, seriously during overheated or discharge fault, temperature will be made sharply to raise in short-term, now as do not cut off the electricity supply by circuit breaker trip in time, equipment in switch cubicle will be caused, outlet is badly damaged, even causes equipment explosion, causes the major accident of electrical network catastrophe failure.
Now to the primary cut-out in power high voltage switch cubicle, instrument transformer, the overheating fault monitoring method of the equipment such as lightning arrester, do D.C. resistance and other electrical test when having a power failure by testing crew, because power high voltage switch cubicle is in operation, for ensureing safety, its shell is closed, infrared measurement of temperature equipment cannot be carried by staff, emit the danger touching high-tension electricity open cabinet door every platform is run in power high voltage switch cubicle inner high voltage circuit breaker, instrument transformer, the equipment such as lightning arrester carry out thermometric, the on-line checkingi of real-time continuous cannot be realized, to report to the police and automatic trip when catastrophe failure is cut off the electricity supply protection, in view of so, all there is power high voltage switch cubicle fault in a lot of operation and be not detected in annual various places, and cannot trip in time when there is catastrophe failure and cut off the electricity supply and the serious accident that causes, serious threat is to the safe operation of electrical network.
Summary of the invention
The purpose of this utility model is the temperature rise electric contact protective device providing a kind of power high voltage switch cubicle fault, by on-line continuous monitoring power high voltage switch cubicle inner breaker, instrument transformer, lightning arrester outlet and surface temperature rise situation, to detect in operation apparatus overheat in power high voltage switch cubicle, make moist, discharge and the fault such as loose contact, these faults all will make its outlet temperature anomaly raise, and connect corresponding alarm circuit and report to the police; When occur at equipment seriously overheated, seriously make moist or seriously the fault such as electric discharge time, temperature rise will be made higher, and connection arranges the tripping operation electric contact loop of higher temperature rise, and control circuit breaker trip rapidly, deenergization, Accident prevention further develops and expands.
For achieving the above object, the technical solution of the utility model is: a kind of temperature rise electric contact protective device of power high voltage switch cubicle fault, comprise power high voltage switch cubicle, be arranged at the handcart circuit breaker in this power high voltage switch cubicle, the breaker outgoing line being connected to this handcart circuit breaker line outlet, instrument transformer, lightning arrester and breaker open operation coil, the infrared temperature measurement device 1 for measuring breaker outgoing line temperature also comprising a temperature rise electric contact controller and be connected with this temperature rise electric contact controller, for measuring the infrared temperature measurement device 2 of instrument transformer external skin temperatures, for measuring the infrared temperature measurement device 3 of lightning arrester external skin temperatures, for controlling the A fault alarm loop that circuit breaker failure is reported to the police, for controlling the B fault alarm loop that mulual inductor malfunction is reported to the police, for controlling the C fault alarm loop that surge arrester failure is reported to the police, for controlling the D trip(ping) circuit of circuit breaker failure tripping operation, for controlling the E trip(ping) circuit of mulual inductor malfunction tripping operation, for controlling the F trip(ping) circuit of surge arrester failure tripping operation, described D, E, F trip(ping) circuit is all for controlling the action of breaker open operation coil.
In the utility model one embodiment, described infrared temperature measurement device 1 is installed in power high voltage switch cubicle just to breaker outgoing line place, described infrared temperature measurement device 2 is installed in power high voltage switch cubicle just to instrument transformer appearance place, described infrared temperature measurement device 3 is installed on just to lightning arrester appearance place in power high voltage switch cubicle, and described infrared temperature measurement device 1 to 3 is all greater than the safe mounting distance of the high-tension electricity grade required by electric power safety code with the distance of paripheral zone electricity part in power high voltage switch cubicle.
In the utility model one embodiment, described infrared temperature measurement device 1 to 3 includes infrared temperature probe, and described infrared temperature probe outer wrap has insulating case; Described infrared temperature probe carries out noncontact on-line continuous thermometric by transmitting and receiving infrared ray to power high voltage switch cubicle inner breaker outlet in operation, instrument transformer appearance and lightning arrester appearance, and temperature measurement signal is transferred to described temperature rise electric contact controller.
In the utility model one embodiment, the operation principle of described A, B, C fault alarm loop and D, E, F trip(ping) circuit is: be provided with breaker outgoing line Faulty Temperature T1, breaker outgoing line trip temperature T2, mulual inductor malfunction temperature T3, instrument transformer trip temperature T4, surge arrester failure temperature T5 and lightning arrester trip temperature T6 in temperature rise electric contact controller, and T1 < T2, T3 < T4, T5 < T6; When breaker outgoing line temperature reaches T1, temperature rise electric contact controller sends circuit breaker failure alarm signal by described A fault alarm loop; When breaker outgoing line temperature continues to be increased to T2, temperature rise electric contact controller, by described D trip(ping) circuit, controls breaker open operation coil motion, makes rapidly moving contact separating brake in circuit breaker, cut off the electricity supply; In like manner, when instrument transformer external skin temperatures reaches T3, temperature rise electric contact controller sends mulual inductor malfunction alarm signal by described B fault alarm loop; When instrument transformer external skin temperatures continues to rise to T4, temperature rise electric contact controller, by described E trip(ping) circuit, controls breaker open operation coil motion, makes rapidly moving contact separating brake in circuit breaker, cut off the electricity supply; When lightning arrester external skin temperatures reaches T5, temperature rise electric contact controller sends surge arrester failure alarm signal by described C fault alarm loop; When lightning arrester external skin temperatures continues to rise to T6, temperature rise electric contact controller, by described F trip(ping) circuit, controls breaker open operation coil motion, makes rapidly moving contact separating brake in circuit breaker, cut off the electricity supply.
In the utility model one embodiment, the alarm that described A, B, C fault alarm loop adopts is one or more combinations of buzzer, loudspeaker or audible-visual annunciator, and the chimes of doom of the alarm in A, B, C fault alarm loop or acoustooptic form have obvious difference.
In the utility model one embodiment; described breaker open operation coil is arranged on the Protection secondary circuit of circuit breaker; and one end of described breaker open operation coil is electrically connected at D trip(ping) circuit, E trip(ping) circuit and F trip(ping) circuit respectively, the other end of breaker open operation coil is electrically connected at moving contact of breaker control loop.
Compared to prior art; the utility model has following beneficial effect: the utility model and tradition cannot carry out the mode of temperature measurement on-line, warning and protection to power high voltage switch cubicle inner high voltage equipment; and can only wait and do contact resistance during power failure and other electrical test is compared to find the mode of fault, there is huge advantage.
Accompanying drawing explanation
Fig. 1 is the temperature rise electric contact protective device fundamental diagram of the utility model power high voltage switch cubicle fault.
Fig. 2 is the temperature rise electric contact protective device of the utility model power high voltage switch cubicle fault, and auto-controlled circuit breaker tripping operation is cut off the electricity supply fundamental diagram.
Fig. 3 be the temperature rise electric contact protective device of the utility model power high voltage switch cubicle fault after power failure, wheelbarrow switch pull-out run location schematic diagram.
Fig. 4 is the temperature rise electric contact protective device of the utility model power high voltage switch cubicle fault, controls the temperature rise electric contact controller A alarm circuit figure that circuit breaker failure is reported to the police.
Fig. 5 is the temperature rise electric contact protective device of the utility model power high voltage switch cubicle fault, controls the temperature rise electric contact controller B alarm circuit figure that mulual inductor malfunction is reported to the police.
Fig. 6 is the temperature rise electric contact protective device of the utility model power high voltage switch cubicle fault, controls the temperature rise electric contact controller C alarm circuit figure that surge arrester failure is reported to the police.
Fig. 7 is the temperature rise electric contact protective device of the utility model power high voltage switch cubicle fault, controls the temperature rise electric contact controller D tripping operation control drawing of circuit breaker failure tripping operation.
Fig. 8 is the temperature rise electric contact protective device of the utility model power high voltage switch cubicle fault, controls the temperature rise electric contact controller E tripping operation control drawing of mulual inductor malfunction tripping operation.
Fig. 9 is the temperature rise electric contact protective device of the utility model power high voltage switch cubicle fault, controls the temperature rise electric contact controller F tripping operation control drawing of surge arrester failure tripping operation.
In figure: 1-power high voltage switch cubicle; 2-infrared temperature measurement device 1; 3-infrared-ray; 4-temperature measurement signal line; 5-infrared temperature measurement device 2; 6-breaker outgoing line; 7-instrument transformer; 8-infrared temperature measurement device 3; 9-lightning arrester; 10-handcart circuit breaker; 11-vacuum bubbles; 12,15-moving contact; 13,16-fixed contact; 14-high-voltage connection; K1-K12 is circuit switching; DJ1-DJ6 is control loop temperature relay; C1-C6 is for controlling major loop contactor.
Embodiment
Below in conjunction with accompanying drawing, the technical solution of the utility model is specifically described.
As shown in figs 1-9, the temperature rise electric contact protective device of a kind of power high voltage switch cubicle fault of the present utility model, comprise power high voltage switch cubicle (1), be arranged at the handcart circuit breaker (10) in this power high voltage switch cubicle, be connected to the breaker outgoing line (6) of this handcart circuit breaker (10) line outlet, instrument transformer (7), lightning arrester (9) and breaker open operation coil, the infrared temperature measurement device 1(2 for measuring breaker outgoing line temperature also comprising a temperature rise electric contact controller and be connected with this temperature rise electric contact controller), for measuring the infrared temperature measurement device 2(5 of instrument transformer external skin temperatures), for measuring the infrared temperature measurement device 3(8 of lightning arrester external skin temperatures), for controlling the A fault alarm loop that circuit breaker failure is reported to the police, for controlling the B fault alarm loop that mulual inductor malfunction is reported to the police, for controlling the C fault alarm loop that surge arrester failure is reported to the police, for controlling the D trip(ping) circuit of circuit breaker failure tripping operation, for controlling the E trip(ping) circuit of mulual inductor malfunction tripping operation, for controlling the F trip(ping) circuit of surge arrester failure tripping operation, described D, E, F trip(ping) circuit is all for controlling the action of breaker open operation coil.(infrared temperature measurement device 1(2), infrared temperature measurement device 2(5) and infrared temperature measurement device 3(8) be all connected to temperature rise electric contact controller by temperature measurement signal line 4, circuit breaker (10), instrument transformer (7), lightning arrester (9) are connected by high-voltage connection (14))
Described infrared temperature measurement device 1(2) be installed in power high voltage switch cubicle just to breaker outgoing line (6) place, described infrared temperature measurement device 2(5) be installed in power high voltage switch cubicle just to instrument transformer (7) appearance place, described infrared temperature measurement device 3(8) be installed on just to lightning arrester (9) appearance place in power high voltage switch cubicle, and described infrared temperature measurement device 1 to 3 is all greater than the safe mounting distance of the high-tension electricity grade required by electric power safety code with the distance of paripheral zone electricity part in power high voltage switch cubicle.
Described infrared temperature measurement device 1 to 3 includes infrared temperature probe, and described infrared temperature probe outer wrap has insulating case; Described infrared temperature probe carries out noncontact on-line continuous thermometric by transmitting and receiving infrared-ray (3) to power high voltage switch cubicle inner breaker outlet in operation, instrument transformer appearance and lightning arrester appearance, and temperature measurement signal is transferred to described temperature rise electric contact controller.
The operation principle of described A, B, C fault alarm loop and D, E, F trip(ping) circuit is: be provided with breaker outgoing line Faulty Temperature T1, breaker outgoing line trip temperature T2, mulual inductor malfunction temperature T3, instrument transformer trip temperature T4, surge arrester failure temperature T5 and lightning arrester trip temperature T6 in temperature rise electric contact controller, and T1 < T2, T3 < T4, T5 < T6; When breaker outgoing line temperature reaches T1, temperature rise electric contact controller sends circuit breaker failure alarm signal by described A fault alarm loop; When breaker outgoing line temperature continues to be increased to T2, temperature rise electric contact controller is by described D trip(ping) circuit, control breaker open operation coil motion, make rapidly moving contact separating brake in circuit breaker (namely making the moving contact (12,15) be arranged in vacuum bubbles (11) separate with fixed contact (13,16)), cut off the electricity supply; In like manner, when instrument transformer external skin temperatures reaches T3, temperature rise electric contact controller sends mulual inductor malfunction alarm signal by described B fault alarm loop; When instrument transformer external skin temperatures continues to rise to T4, temperature rise electric contact controller, by described E trip(ping) circuit, controls breaker open operation coil motion, makes rapidly moving contact separating brake in circuit breaker, cut off the electricity supply; When lightning arrester external skin temperatures reaches T5, temperature rise electric contact controller sends surge arrester failure alarm signal by described C fault alarm loop; When lightning arrester external skin temperatures continues to rise to T6, temperature rise electric contact controller, by described F trip(ping) circuit, controls breaker open operation coil motion, makes rapidly moving contact separating brake in circuit breaker, cut off the electricity supply.
The alarm that described A, B, C fault alarm loop adopts is one or more combinations of buzzer, loudspeaker or audible-visual annunciator, and the chimes of doom of the alarm in A, B, C fault alarm loop or acoustooptic form have obvious difference.
Described breaker open operation coil is arranged on the Protection secondary circuit of circuit breaker; and one end of described breaker open operation coil is electrically connected at D trip(ping) circuit, E trip(ping) circuit and F trip(ping) circuit respectively, the other end of breaker open operation coil is electrically connected at moving contact of breaker control loop.
Be more than preferred embodiment of the present utility model, all changes done according to technical solutions of the utility model, when the function produced does not exceed the scope of technical solutions of the utility model, all belong to protection range of the present utility model.

Claims (6)

1. the temperature rise electric contact protective device of a power high voltage switch cubicle fault, it is characterized in that: comprise power high voltage switch cubicle, be arranged at the handcart circuit breaker in this power high voltage switch cubicle, the breaker outgoing line being connected to this handcart circuit breaker line outlet, instrument transformer, lightning arrester and breaker open operation coil, the infrared temperature measurement device (1) for measuring breaker outgoing line temperature also comprising a temperature rise electric contact controller and be connected with this temperature rise electric contact controller, for measuring the infrared temperature measurement device (2) of instrument transformer external skin temperatures, for measuring the infrared temperature measurement device (3) of lightning arrester external skin temperatures, for controlling the A fault alarm loop that circuit breaker failure is reported to the police, for controlling the B fault alarm loop that mulual inductor malfunction is reported to the police, for controlling the C fault alarm loop that surge arrester failure is reported to the police, for controlling the D trip(ping) circuit of circuit breaker failure tripping operation, for controlling the E trip(ping) circuit of mulual inductor malfunction tripping operation, for controlling the F trip(ping) circuit of surge arrester failure tripping operation, described D, E, F trip(ping) circuit is all for controlling the action of breaker open operation coil.
2. the temperature rise electric contact protective device of a kind of power high voltage switch cubicle fault according to claim 1, it is characterized in that: described infrared temperature measurement device (1) is installed in power high voltage switch cubicle just to breaker outgoing line place, described infrared temperature measurement device (2) is installed in power high voltage switch cubicle just to instrument transformer appearance place, described infrared temperature measurement device (3) is installed in power high voltage switch cubicle just to lightning arrester appearance place, and described infrared temperature measurement device (1) to (3) is all greater than the safe mounting distance of the high-tension electricity grade required by electric power safety code with the distance of paripheral zone electricity part in power high voltage switch cubicle.
3. the temperature rise electric contact protective device of a kind of power high voltage switch cubicle fault according to claim 1 and 2, it is characterized in that: described infrared temperature measurement device (1) includes infrared temperature probe to (3), described infrared temperature probe outer wrap has insulating case; Described infrared temperature probe carries out noncontact on-line continuous thermometric by transmitting and receiving infrared ray to power high voltage switch cubicle inner breaker outlet in operation, instrument transformer appearance and lightning arrester appearance, and temperature measurement signal is transferred to described temperature rise electric contact controller.
4. the temperature rise electric contact protective device of a kind of power high voltage switch cubicle fault according to claim 1, it is characterized in that: the operation principle of described A, B, C fault alarm loop and D, E, F trip(ping) circuit is: in temperature rise electric contact controller, be provided with breaker outgoing line Faulty Temperature T1, breaker outgoing line trip temperature T2, mulual inductor malfunction temperature T3, instrument transformer trip temperature T4, surge arrester failure temperature T5 and lightning arrester trip temperature T6, and T1 < T2, T3 < T4, T5 < T6; When breaker outgoing line temperature reaches T1, temperature rise electric contact controller sends circuit breaker failure alarm signal by described A fault alarm loop; When breaker outgoing line temperature continues to be increased to T2, temperature rise electric contact controller, by described D trip(ping) circuit, controls breaker open operation coil motion, makes rapidly moving contact separating brake in circuit breaker, cut off the electricity supply; In like manner, when instrument transformer external skin temperatures reaches T3, temperature rise electric contact controller sends mulual inductor malfunction alarm signal by described B fault alarm loop; When instrument transformer external skin temperatures continues to rise to T4, temperature rise electric contact controller, by described E trip(ping) circuit, controls breaker open operation coil motion, makes rapidly moving contact separating brake in circuit breaker, cut off the electricity supply; When lightning arrester external skin temperatures reaches T5, temperature rise electric contact controller sends surge arrester failure alarm signal by described C fault alarm loop; When lightning arrester external skin temperatures continues to rise to T6, temperature rise electric contact controller, by described F trip(ping) circuit, controls breaker open operation coil motion, makes rapidly moving contact separating brake in circuit breaker, cut off the electricity supply.
5. the temperature rise electric contact protective device of a kind of power high voltage switch cubicle fault according to claim 1; it is characterized in that: the alarm that described A, B, C fault alarm loop adopts is one or more combinations of buzzer, loudspeaker or audible-visual annunciator, and the chimes of doom of the alarm in A, B, C fault alarm loop or acoustooptic form have obvious difference.
6. the temperature rise electric contact protective device of a kind of power high voltage switch cubicle fault according to claim 1; it is characterized in that: described breaker open operation coil is arranged on the Protection secondary circuit of circuit breaker; and one end of described breaker open operation coil is electrically connected at D trip(ping) circuit, E trip(ping) circuit and F trip(ping) circuit respectively, the other end of breaker open operation coil is electrically connected at moving contact of breaker control loop.
CN201520411560.6U 2015-06-16 2015-06-16 A kind of temperature rise electric contact protective device of power high voltage switch cubicle fault Active CN204706872U (en)

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CN201520411560.6U CN204706872U (en) 2015-06-16 2015-06-16 A kind of temperature rise electric contact protective device of power high voltage switch cubicle fault

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104882851A (en) * 2015-06-16 2015-09-02 国家电网公司 Temperature-rise electric contact protection device for power high-voltage switch cabinet fault, and control method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104882851A (en) * 2015-06-16 2015-09-02 国家电网公司 Temperature-rise electric contact protection device for power high-voltage switch cabinet fault, and control method

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