CN210577797U - Intelligent arc suppression coil and small resistor comprehensive control device - Google Patents

Abstract

The utility model belongs to the technical field of the distribution network technique and specifically relates to intelligent arc suppression coil and little resistance integrated control device, which comprises a frame, be equipped with controlling means, transformer device protecting sheathing and little resistance adjusting device shell and arc suppression coil from a left side to the right side in proper order in the frame, transformer device protecting sheathing's the inside grounding transformer that is equipped with of shell, be equipped with a plurality of support columns on the transformer device protecting sheathing, and the inside bilateral symmetry of little resistance adjusting device shell is equipped with first spout, and the inside both sides diagonal symmetry of shell of little resistance adjusting device shell is equipped with two electrical property jacks, and the device reasonable in design simple structure has realized the resistance that can adjust the little resistance, has protected distribution network circuit system, is fit for promoting.

Description

Intelligent arc suppression coil and small resistor comprehensive control device

Technical Field

The utility model relates to a distribution network technical field especially relates to intelligent arc suppression coil and small resistance integrated control device.

Background

Along with the increase of the scale of a power grid and the heavy use of cables in a power distribution network, the capacitance current of the system shows a trend of increasing continuously, about 80% of the faults of the power distribution network are unidirectional grounding faults, in order to improve the reliability of power supply, most of the power distribution networks adopt a mode of grounding arc suppression coils, along with the heavy use of cables in recent years, the power supply system increasingly faces the problem of insufficient compensation capacity of the arc suppression coils, therefore, new arc suppression coils are added continuously, which is a main reason for forming the parallel operation of a plurality of arc suppression coils in the same network, in a power grid with a voltage level of 10-66 kV, most of the system adopts a neutral point ungrounded mode, namely a small current grounding system, when the system is grounded in a single phase, the power grid can still operate with faults, the operation cost is greatly reduced, the reliability of the power supply system is improved, when the system, can automatically compensate the power frequency component of the single-phase grounding capacitance current of the system in a short time and reduce the rising speed of the recovery voltage after the arc quenching of the fault point, so as to be beneficial to the extinguishing of the grounding electric arc and reduce the probability of the occurrence of high-amplitude intermittent electric arc grounding overvoltage, if the grounding fault does not disappear within the set compensation time (which can be selected within 1-10 s), a small resistor is put into the device to be connected with the arc suppression coil in parallel, a fault circuit is cut off by the action of a zero sequence protection device, if the device does not need to be matched with the automatic reclosing of a power distribution network, the small resistor is required to be immediately withdrawn from operation after the fault line is cut off, and if the small resistor is required to be matched with the automatic reclosing switch of the distribution network, the small resistor is withdrawn after the distribution network automatically realizes the corresponding function (generally within 60 s), but the system has the problem that the resistance value of the small resistor cannot be automatically adjusted, and therefore, the intelligent arc suppression coil and small resistor comprehensive control device is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that the resistance of having the small resistor among the prior art can't automatically regulated, and the intelligent arc suppression coil and small resistor integrated control device who provides.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an intelligent arc suppression coil and small resistor comprehensive control device is designed, and comprises a rack, wherein a control device, a transformer device protective shell, a small resistor resistance value adjusting device shell and an arc suppression coil are sequentially arranged on the rack from left to right, a grounding transformer is arranged inside the transformer device protective shell, a plurality of supporting columns are arranged on the transformer device protective shell, first sliding grooves are symmetrically arranged on two sides inside the small resistor resistance value adjusting device shell, two electrical jacks are symmetrically arranged on two sides inside the small resistor resistance value adjusting device shell in a diagonal manner, a rubber insulating column is arranged inside the small resistor resistance value adjusting device shell, a resistance value induction coil is arranged on the outer side of the circumference of the rubber insulating column, two electric motors are symmetrically arranged on two sides inside the small resistor resistance value adjusting device shell in a diagonal manner, every the output of electric telescopic handle machine all is equipped with the telescopic link, every the one end of telescopic link all is equipped with first slider, one side that is close to resistance induction coil of first slider is equipped with the protection device shell, the inside of protection device shell is equipped with the second spout, be equipped with the second slider on the second spout, the inside of protection device shell is equipped with leads electrical pillar, the one end of leading electrical pillar is passed the second slider and is stretched out, the one end of leading electrical pillar is equipped with electrical contact, the inside of first slider is equipped with L nature through-hole, it stretches into in the through-hole in the first slider and its tip is equipped with the wire to lead electrical contact's one end, the inside of protection device shell is equipped with rubber spring, the one end of wire with the electrical property jack is connected.

Preferably, the control device, the arc suppression coil, the grounding transformer, the electric telescopic rod machine and the electric jack are electrically connected with each other through a conducting wire.

Preferably, first slider is equipped with first spout assorted T type slider, rubber spring both ends respectively with second slider and first slider fixed connection, and rubber spring's diameter is greater than the conductive post diameter of cladding.

The utility model provides an intelligent arc suppression coil and little resistance integrated control device, beneficial effect lies in: when the device is used, the control device can automatically detect whether an external power distribution network has a fault or not, and when the device does not have the fault, the electric telescopic rod machine in the shell of the small-resistance adjusting device can be controlled to move the first sliding blocks at two sides of the resistance induction coil to parallel symmetrical positions, the electric contacts, the conductive posts and the resistance induction coil at two sides transmit current to the arc suppression coil so as to avoid an operating circuit system, when the external power distribution network has the fault, the electric telescopic rod machine can be automatically controlled to move the first sliding blocks so that the resistance of the resistance induction coil contacted with the electric contacts and the conductive posts is increased and is connected into the arc suppression coil to protect the power distribution network circuit system, and when the fault is eliminated, the control device can control the electric telescopic rod machine to reset so that the small resistance exits the circuit operation to realize intelligent adjustment of the resistance of the small resistance, and the device has reasonable, the resistance value of the small resistor can be adjusted, a power distribution network circuit system is protected, and the method is suitable for popularization.

Drawings

Fig. 1 is a schematic three-dimensional structure diagram of an intelligent arc suppression coil and small resistance comprehensive control device provided by the utility model;

fig. 2 is a schematic view of a cross-sectional structure of the intelligent arc suppression coil and small resistance comprehensive control device provided by the utility model;

fig. 3 is the utility model provides an intelligent arc suppression coil and small resistance integrated control device's local section structure sketch map.

In the figure: the device comprises a rack 1, a control device 2, a grounding transformer 3, a transformer device protective shell 4, a support column 5, a small resistance value adjusting device shell 6, an arc suppression coil 7, a rubber insulation column 8, a resistance value induction coil 9, an electrical jack 10, a lead 11, a telescopic rod 12, an electric telescopic rod machine 13, a first sliding groove 14, a first sliding block 15, a rubber spring 16, a second sliding block 17, an electrical contact 18, a conductive column 19, a second sliding groove 20 and a protective device shell 21.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, the intelligent arc suppression coil and small resistance comprehensive control device comprises a frame 1, a control device 2, a transformer device protection shell 4, a small resistance value adjusting device shell 6 and an arc suppression coil 7 are sequentially arranged on the frame 1 from left to right, a grounding transformer 3 is arranged inside the transformer device protection shell 4, a plurality of support columns 5 are arranged on the transformer device protection shell 4, first chutes 14 are symmetrically arranged on two sides inside the small resistance value adjusting device shell 6, two electrical jacks 10 are symmetrically arranged on two sides inside the small resistance value adjusting device shell 6 in diagonal, a rubber insulating column 8 is arranged inside the small resistance value adjusting device shell 6, a resistance value induction coil 9 is arranged on the outer side of the circumference of the rubber insulating column 8, and two electric telescopic rods 13 are symmetrically arranged on two sides inside the small resistance value adjusting device shell 6 in diagonal, the output end of each electric telescopic rod machine 13 is provided with a telescopic rod 12, one end of each telescopic rod 12 is provided with a first slider 15, one side of each first slider 15, which is close to the resistance value induction coil 9, is provided with a protection device shell 21, the inside of the protection device shell 21 is provided with a second chute 20, the second chute 20 is provided with a second slider 17, the inside of the protection device shell 21 is provided with a conductive column 19, one end of the conductive column 19 penetrates through the second slider 17 and extends out, one end of the conductive column 19 is provided with an electric contact 18, the inside of the first slider 15 is provided with an L-shaped through hole, one end, which is far away from the electric contact 18, of the conductive column 19 extends into the through hole in the first slider 15, the end part of the conductive column is provided with a wire 11, the inside of the protection device shell 21.

The control device 2, the arc suppression coil 7, the grounding transformer 3, the electric telescopic rod 13 and the electric jack 10 are electrically connected with each other through a conducting wire, the first sliding block 15 is provided with a T-shaped sliding block matched with the first sliding chute 14, two ends of the rubber spring 16 are respectively fixedly connected with the second sliding block 17 and the first sliding block 15, the diameter of the rubber spring 16 is larger than that of the covered conducting post 19, the control device 2 can automatically detect whether an external power distribution network fails or not when in use, and when the external power distribution network fails, the electric telescopic rod 13 in the shell 6 of the small resistance value adjusting device can be controlled to move the first sliding blocks 15 at two sides of the resistance value induction coil 9 to a parallel symmetrical position, the current is transmitted to the arc suppression coil 7 through the electric contacts 18 at two sides, the conducting post 19 and the resistance value induction coil 9, so that the circuit system can avoid operation, the automatic control electric telescopic rod machine 13 moves the first sliding block 15, so that the resistance of the resistance induction coil 9, which is in contact with the electric contact 18 and the conductive column 19, is increased, the resistance induction coil 7 is connected into the resistance induction coil, a power distribution network circuit system is protected, the control device 2 can control the electric telescopic rod machine 13 to reset after the fault is eliminated, the small resistor quits the circuit operation, the resistance of the intelligent adjustment small resistor is realized, and the power distribution network circuit system is protected.

Above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the design of the present invention, equivalent replacement or change should be covered within the protection scope of the present invention.

Claims (3)

1. The intelligent arc suppression coil and small resistor integrated control device comprises a rack (1) and is characterized in that a control device (2), a transformer device protective shell (4), a small resistor resistance value adjusting device shell (6) and an arc suppression coil (7) are sequentially arranged on the rack (1) from left to right, a grounding transformer (3) is arranged inside the transformer device protective shell (4), a plurality of support columns (5) are arranged on the transformer device protective shell (4), first sliding grooves (14) are symmetrically arranged on two sides inside the small resistor resistance value adjusting device shell (6), two electrical jacks (10) are symmetrically arranged on two sides of the inside of the small resistor resistance value adjusting device shell (6) in a diagonal manner, and rubber insulating columns (8) are arranged inside the small resistor resistance value adjusting device shell (6), a resistance value induction coil (9) is arranged on the outer side of the circumference of the rubber insulating column (8), two electric telescopic rod machines (13) are symmetrically arranged on two sides of the inner portion of the small resistance value adjusting device shell (6) in a diagonal manner, an output end of each electric telescopic rod machine (13) is provided with a telescopic rod (12), one end of each telescopic rod (12) is provided with a first sliding block (15), one side, close to the resistance value induction coil (9), of each first sliding block (15) is provided with a protection device shell (21), a second sliding groove (20) is arranged in each protection device shell (21), a second sliding block (17) is arranged on each second sliding groove (20), a conductive column (19) is arranged in each protection device shell (21), one end of each conductive column (19) penetrates through the second sliding block (17) and extends out, one end of each conductive column (19) is provided with an electric contact (18), the inside of first slider (15) is equipped with L nature through-hole, the one end of leading electrical pillar (19) to keep away from electrical contact (18) stretches into in the through-hole in first slider (15) and its tip is equipped with wire (11), the inside of protection device shell (21) is equipped with rubber spring (16), the one end of wire (11) with electrical property jack (10) are connected.

2. An intelligent arc suppression coil and small resistance comprehensive control device according to claim 1, wherein the control device (2), the arc suppression coil (7), the grounding transformer (3), the electric telescopic rod machine (13) and the electric jack (10) are electrically connected with each other through a lead.

3. An intelligent arc suppression coil and small resistance comprehensive control device according to claim 1, wherein the first sliding block (15) is provided with a T-shaped sliding block matched with the first sliding groove (14), two ends of the rubber spring (16) are respectively fixedly connected with the second sliding block (17) and the first sliding block (15), and the diameter of the rubber spring (16) is larger than that of the wrapped conductive column (19).

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