CN217034084U

CN217034084U - Residual current on-line monitoring device

Info

Publication number: CN217034084U
Application number: CN202123369367.5U
Authority: CN
Inventors: 丁尊龙; 崔卫卫; 李干臣; 席云彦
Original assignee: Xuchang Zhongheng Electric Co ltd
Current assignee: Xuchang Zhongheng Electric Co ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-07-22
Anticipated expiration: 2031-12-30

Abstract

The utility model relates to a residual current on-line monitoring device, which comprises a base, wherein a base is arranged on the base, an integrated controller is arranged on the base, a plurality of installation boxes are arranged in the base, a current transformer for monitoring residual current is arranged in each installation box, the electromagnetic influence of the plurality of current transformers which are arranged together is avoided through the electromagnetic shielding effect of the installation boxes, the precision of monitoring the residual current is improved, meanwhile, the current transformers are installed in a modularized mode and are convenient to replace, the residual current on-line monitoring device also comprises a protection mechanism, the protection mechanism is controlled by the integrated controller, when the residual current data are monitored to be abnormal, the protection mechanism acts to disconnect a loop, meanwhile, the integrated controller sends an alarm prompt to a monitoring software platform, and personnel can judge whether a leakage accident occurs according to the real-time data of the loop, and the residual current on-line monitoring device has the characteristics of safety, accuracy and high efficiency, is worthy of popularization.

Description

Residual current on-line monitoring device

Technical Field

The utility model belongs to the technical field of electrical devices, and particularly relates to a residual current online monitoring device.

Background

With the improvement of power consumption consciousness and service requirements, a power market puts forward higher management requirements on power consumption management units, a power supply company must be changed from a former after-treatment mode to a pre-defense mode, equipment leakage is one of common power accidents, mainly because current leakage is caused by damage or aging of an insulating skin layer, the number of life events caused by equipment leakage is not good every year, great economic loss is caused to a power department, and psychological shadow which cannot be worn out for the whole life is caused to a victim family;

in order to solve the problems, the installation of the residual current protector becomes a main measure for dealing with the current electric leakage accidents, but the existing residual current protector has a poor monitoring effect on the electric leakage condition, cannot inform maintenance personnel to maintain at the first time, and still has potential safety hazards.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model aims to provide an on-line residual current monitoring device, which solves the problems that the existing residual current protector has poor monitoring effect on the electric leakage condition, cannot inform maintenance personnel to maintain at the first time and still has potential safety hazards.

The technical purpose of the utility model is realized by the following technical scheme:

the utility model content part is as follows: residual current on-line monitoring device, including the subbase, its characterized in that, subbase top bolted connection has the base, install the controller on the base, be connected with two rows of first binding post on the subbase, two first binding post's wiring end one-to-one communicates through protection mechanism electricity, a plurality of horizontal arrangement's of fixedly connected with install bin side by side in the subbase, and is a plurality of install current transformer in the install bin respectively, it is a plurality of current transformer communicates with the second binding post electricity of installing on the base respectively.

The utility model has the beneficial effects that:

1. the utility model comprises a subbase, wherein a plurality of installation boxes are installed in the subbase, and a current transformer for monitoring residual current is arranged in each installation box;

2. the utility model also comprises a protection mechanism which is controlled by the integrated controller, when the abnormal residual current data is monitored, the protection mechanism acts to disconnect the loop, and meanwhile, the integrated controller sends an alarm prompt to the monitoring software platform, so that personnel can judge whether the leakage accident happens according to the real-time residual current data of the loop, and the utility model has the characteristics of safety, accuracy and high efficiency, and is worthy of popularization.

Drawings

Fig. 1 is a front view of the present invention.

Fig. 2 is a first perspective view of the present invention.

Fig. 3 is a second perspective view of the present invention.

Fig. 4 is a partial structural view one of the present invention.

Fig. 5 is a second partial structural view of the present invention.

Fig. 6 is a third partial structural view of the present invention.

Fig. 7 is a first structural view of the protection mechanism of the utility model.

Fig. 8 is a second structural view of the protection mechanism of the present invention.

In the figure, 1, a substrate; 2. a base; 3. a first connection terminal; 4. installing a box; 5. a current transformer; 6. a second connection terminal; 7. a supporting seat; 8. a first spring plate; 9. a second elastic sheet; 10. a slide sheet; 11. a spring; 12. an electromagnet; 13. a cover plate; 14. an alarm lamp; 15. a buzzer; 16. a heat dissipation fan.

Detailed Description

The following description of the present invention will be made in detail with reference to the accompanying drawings 1 to 8.

In the first embodiment, with reference to fig. 1-8, the online residual current monitoring device includes a base 1 made of insulating plastic, a base 2 is bolted on the base 1, and the device is preset, has a small volume, and can be freely suspended and installed in a meter box main switch or an electric meter box, so that the bolts connecting the base 1 and the base 2 are insulating bolts, the base 2 is made of insulating plastic, an integrated controller is installed on the base 2, the integrated controller is communicated with an additionally arranged switch power supply for supplying power, the integrated controller simultaneously drives an alarm lamp 14, a buzzer 15 and a cooling fan 16 installed on the base 2, when the device is operated, the environment is relatively sealed, heating components are all arranged around the device, the device can also heat, the cooling fan 16 is installed on the side of the integrated controller, so as to improve the service life of the device, when the integrated controller detects that electric leakage occurs, the alarm lamp 14 is lighted, the buzzer 15 also makes a sound, the integrated controller sends an electric leakage alarm to an online monitoring software platform connected with the integrated controller through a network, a maintainer can know the electric leakage alarm sent by the equipment through the monitoring software platform and repair a circuit where the equipment is located in time, two rows of first wiring terminals 3 are connected to the base 1, the base 1 is preset, the number of the first wiring terminals 3 in the embodiment is 13, the base can monitor residual current data and other 12-family residual current data at an incoming line at the same time, a plurality of installation boxes 4 which are transversely arranged in parallel are fixedly connected to the base 1, the preset number of the installation boxes 4 is the same as the number of the wiring terminals of the first wiring terminals 3, and the installation boxes 4 in the embodiment are 13, the installation box 4 is an iron metal box, a cover plate 13 is transversely hinged on the installation box 4, a torsional spring is arranged on a hinged shaft of the cover plate 13, the cover plate 13 is made of insulating plastics, an iron thin metal sheet is arranged on the lower end face of the cover plate 13, a plurality of current transformers 5 are respectively arranged in the installation boxes 4, the plurality of current transformers 5 are commonly and electrically communicated with a second wiring terminal 6 arranged on a base, namely, 13 current transformers 5 are shared in the embodiment, so that the number of wiring terminals of the second wiring terminal 6 is 13, one wiring terminal of the second wiring terminal 6 is connected with one current transformer 5, the other end of each wiring terminal of the second wiring terminal 6 is commonly connected with an integrated controller, the current transformers 5 can send signals to the integrated controller, and the preset current transformers 5 can upload data once at certain time intervals (for example, 3 minutes) according to a set value, when the residual current suddenly exceeds the set threshold value, the integrated controller sends an electric leakage alarm to the detection software platform, after the personnel confirm to receive the information, the personnel can also send an instruction to the integrated controller through the monitoring software platform, the real-time residual current data of the loop with the problem is called out, the personnel can conveniently verify and judge whether the error judgment is carried out by the integrated controller, and the detection effect of the existing residual current protector is not ideal, on one hand, because the current transformers 5 arranged in the existing residual current protector have electromagnetic influence, in the embodiment, each current transformer 5 is arranged in the installation box 4 made of iron and is separated, after the cover plate 13 is put down, the working ends of the current transformers 5 are completely included, and at the moment, the electromagnetic influence existing among the current transformers 5 is separated due to the electromagnetic shielding function of the iron shell, so that the working precision of the current transformers 5 is improved;

the wiring ends of the two first wiring terminals 3 are connected in series into a circuit to be connected in a one-to-one correspondence manner, the preset condition is that electric wires connected on the two first wiring terminals 3 penetrate through the installation box 4 and are positioned below the current transformer 5, the protection mechanism is connected between the wiring ends of the two wiring terminals and comprises a support seat 7 installed on the substrate 1, the support seat 7 is made of insulating plastics, a first elastic sheet 8 communicated with the wiring end of the first wiring terminal 3 and a second elastic sheet 9 communicated with the current transformer 5 are arranged on the support seat 7, the first elastic sheet 8 and the second elastic sheet 9 are matched for use, the two elastic sheets are both made of conducting wire metal sheets, the two elastic sheets have high elasticity, the first elastic sheet 8 and the second elastic sheet 9 cannot be in contact with each other in an initial state, namely the two first wiring terminals 3 are not communicated, the first elastic sheet 8 and the second elastic sheet 9 are matched with a plurality of groups of sliding sheets 10 which are connected on the supporting seat 7 in a sliding way, namely the sliding sheets 10 are arranged between the first elastic sheet 8 and the second elastic sheet 9, the sliding sheets 10 can be contacted with the two elastic sheets at the same time after sliding to a certain position, a spring 11 is arranged between the sliding sheets 10 and the supporting seat 7, under the action of the spring 11, the sliding sheets 10 can be contacted with the first elastic sheet 8 and the second elastic sheet 9 at the same time, the upper ends of the sliding sheets 10 are matched with an electromagnet 12 which is fixedly connected on the supporting seat 7, the electromagnet 12 is electrically connected with the integrated controller, the preset part where the lower ends of the sliding sheets 10 are matched with the first elastic sheet 8 and the second elastic sheet 9 is made of conductive metal, the wiring ends of the two first wiring terminals 3 are communicated when the sliding sheets 10 are contacted with the first elastic sheet 8 and the second elastic sheet 9 at the same time, the sliding sheet 10 is made of insulating plastics in the sliding connection part with the supporting seat 7, the part matched with the electromagnet 12 is made of metal capable of being attracted by a magnetic field, and after the electromagnet 12 is controlled by the integrated controller, the electromagnet 12 attracts the sliding sheet 10 to slide upwards to a position where the sliding sheet is not in contact with the first elastic sheet 8 and the second elastic sheet 9, namely, the two first wiring terminals 3 are disconnected.

When the utility model is used, firstly, a current transformer 5 is put into an installation box 4, an electromagnet 12 is fixedly installed at a set position, then a base 2 and a base 1 are fixedly connected through an insulating bolt, then the current transformer 5 is connected with a second connecting terminal 6, two first connecting terminals 3 are connected into a loop to be monitored, then a power supply is started, an integrated controller works, a cooling fan 6 is started to cool the device, then the current transformer 5 sends measured residual current data to the integrated controller at certain intervals, in the operation process of the device, if the residual current data transmitted by one current transformer 5 received by the integrated controller exceeds a set value, the integrated controller controls the electromagnet 12 on the loop to be electrified, thereby attracting a sliding sheet 10 to be lifted, disconnecting the loop and simultaneously illuminating an alarm lamp 14, the buzzer 15 sends out alarm sound, the integrated controller sends out leakage alarm to the monitoring software platform, after the personnel receives the alarm information, the personnel sends out instructions to the integrated controller to call out the real-time residual current information of the loop, when confirming that the integrated controller is false alarm, the instructions can be sent out to lead the integrated controller to reset aiming at the alarm response of the loop, the sliding sheet 10 slides downwards again to be communicated with the wiring ends of the two first wiring terminals 3, the signal which is sent out aiming at the loop and leads the alarm lamp 14 and the buzzer 15 to act disappears (any loop goes wrong, the integrated controller controls the action of the alarm lamp 14 and the buzzer 15, namely the alarm lamp 14 and the buzzer 15 stop acting when all the loops have no alarm instruction), if the leakage accident is judged to occur, the personnel can cancel the action of the alarm lamp 14 and the buzzer 15 after arriving at the site, when a certain current transformer 5 is seriously damaged and needs to be aged and replaced, only need to part the intercommunication between current transformer 5 and the second binding post 6, loosen insulating bolt, open apron 13 change this install bin 4 in current transformer 5 can, need not the outage, convenient change.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. Residual current on-line monitoring device, including subbase (1), its characterized in that, subbase (1) top bolted connection has base (2), install integrated control ware on base (2), be connected with two rows of first binding post (3) on subbase (1), two the wiring end one-to-one of first binding post (3) communicates through protection mechanism electricity, a plurality of installation box (4) that transversely arrange the setting side by side of fixedly connected with in subbase (1) are a plurality of install current transformer (5), a plurality of in installation box (4) install current transformer (5) respectively, it is a plurality of current transformer (5) jointly with install second binding post (6) electricity intercommunication on base (2).

2. The residual current online monitoring device according to claim 1, wherein the protection mechanism comprises a support base (7) installed on the base (1), a first elastic sheet (8) communicated with a terminal of the first terminal (3) and a second elastic sheet (9) communicated with the current transformer (5) are arranged on the support base (7), the first elastic sheet (8) and the second elastic sheet (9) are used in a matched mode, multiple groups of the first elastic sheet (8) and the second elastic sheet (9) are matched with a sliding sheet (10) connected to the support base (7) in a sliding mode, a spring (11) is arranged between the sliding sheet (10) and the support base (7), the upper end of the sliding sheet (10) is matched with an electromagnet (12) fixedly connected to the support base (7), and the electromagnet (12) is electrically connected with the integrated controller.

3. The on-line residual current monitoring device according to claim 2, wherein the first elastic sheet (8) and the second elastic sheet (9) are made of conductive metal sheets, and have high elasticity, the first elastic sheet (8) and the second elastic sheet (9) do not contact each other in an initial state, the lower end of the sliding sheet (10) is made of conductive metal at a position where the first elastic sheet (8) and the second elastic sheet (9) are matched, the part in sliding connection with the supporting seat (7) is made of insulating plastic, and the part in matching with the electromagnet (12) is made of metal capable of being attracted by a magnetic field.

4. The on-line residual current monitoring device according to claim 1, characterized in that the installation box (4) is an iron metal box, a cover plate (13) is hinged on the installation box (4) in the transverse direction, a torsion spring is arranged on a hinge shaft of the cover plate (13), and an iron metal sheet is arranged on the lower end surface of the cover plate (13).

5. The on-line residual current monitoring device according to claim 1, characterized in that the bolts connected between the base (1) and the base (2) are insulating bolts.

6. The on-line residual current monitoring device according to claim 1, characterized in that a warning lamp (14), a buzzer (15) and a cooling fan (16) which are electrically communicated with a controller are installed on the base (2).

7. The on-line residual current monitoring device according to claim 1, characterized in that wires connected to the two first terminals (3) pass through the installation box (4) and are located below the current transformer (5).