CN210349513U

CN210349513U - Isolation transformer box with water seepage detection device

Info

Publication number: CN210349513U
Application number: CN201921801002.5U
Authority: CN
Inventors: 唐平; 刘清康
Original assignee: SICHUAN HUAXI INSTALLATION ENGINEERING CO LTD
Current assignee: SICHUAN HUAXI INSTALLATION ENGINEERING CO LTD
Priority date: 2019-10-24
Filing date: 2019-10-24
Publication date: 2020-04-17
Anticipated expiration: 2029-10-24

Abstract

The utility model discloses an electrical engineering technical field's isolation transformer case of area water logging detection device, including isolation transformer case apron, isolation transformer case box, infiltration detection device, isolation transformer case apron embedding sets up and installs in isolation transformer case box, isolation transformer case apron passes through bolted connection and is provided with the silicon rubber sealing washer with isolation transformer case box, isolation transformer case box is provided with cable inlet and outlet holes, cable inlet and outlet wire hole includes nylon water joint, nylon water joint one, nylon water joint two, and nylon water joint, nylon water joint one, nylon water joint two are fixed and the shutoff cable inlet and outlet hole, have prolonged sealing washer life, have reduced the probability of intaking, have reduced maintenance work volume, have saved maintenance time greatly.

Description

Isolation transformer box with water seepage detection device

Technical Field

The utility model relates to an electrical engineering technical field specifically is area infiltration detection device's isolation transformer case.

Background

The isolation transformer box is a device for facilitating the installation and fixation of the isolation transformer and protecting the isolation transformer. The transformer box can be divided into a buried isolation transformer box and an exposed isolation transformer box according to the installation position; the transformer can be divided into a glass fiber reinforced plastic isolation transformer box, a cast iron isolation transformer box and a stainless steel isolation transformer box according to different materials.

However, the common isolation transformer box is installed by being buried outdoors, the working environment is severe, the sealing ring is fast aged, water is easy to accumulate, and the maintenance is very inconvenient.

Therefore, how to design a novel isolation transformer box becomes a problem which needs to be solved urgently.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a take infiltration detection device's isolation transformer case to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: an isolation transformer box with a water seepage detection device comprises an isolation transformer box cover plate, an isolation transformer box body and a water seepage detection device, wherein the isolation transformer box cover plate is embedded and arranged in the isolation transformer box body, the isolation transformer box cover plate is connected with the isolation transformer box body through a bolt and is provided with a sealing ring, the isolation transformer box body is provided with a cable inlet and outlet hole, the cable inlet and outlet hole comprises a nylon waterproof joint, a nylon waterproof joint I and a nylon waterproof joint II, the nylon waterproof joint I and the nylon waterproof joint II are fixed and block the cable inlet and outlet hole, the top of the isolation transformer box body is provided with the water seepage detection device, the inner side wall of the water seepage detection device is provided with a detection cable, the detection cable passes through a bent pipe to enter the isolation transformer box body, and the detection cable is fixed on the inner wall of the isolation transformer box body through a cable, the outer wall fixed connection return bend of isolation transformer case box, isolation transformer case box inner wall is equipped with the ground connection row, ground connection row and isolation transformer case box welded connection.

Further, infiltration detection device is including the fixed connecting pipe that sets up at isolation transformer box top, metal core subassembly is connected at the top of connecting pipe, metal core subassembly's top sets up the insulation resistance tester, connecting pipe and return bend threaded connection.

Further, the sealing ring is a silicon rubber sealing ring.

Further, the grounding bar is a hole M grounding bar.

Compared with the prior art, the beneficial effects of the utility model are that: the isolating transformer box sealing ring with the water seepage detection device is changed into silicon rubber, the service life of the sealing ring is prolonged, the nylon waterproof joint is arranged at the cable inlet and outlet wire holes, the water inflow probability is reduced, the original tradition of epoxy resin water plugging is broken, the installation and construction time is saved, meanwhile, the water seepage detection device is arranged, whether accumulated water exists in the isolating transformer box can be detected through the insulation resistance tester under the condition that the cover plate of the isolating transformer box is not opened, the maintenance workload is reduced, and the maintenance time is greatly saved; in addition, the grounding bar is arranged on the inner wall of the box body of the isolation transformer box, the cable in the box body and the grounding wire of the isolation transformer can be respectively connected to the grounding bar through bolts, the embarrassment that all grounding wires of the original isolation transformer box are connected to one grounding pile is eliminated, the grounding wires are neat and attractive, meanwhile, all grounding wires do not need to be removed during maintenance, and only the corresponding grounding wires need to be removed as required.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a top view of the present invention;

fig. 3 is the utility model discloses infiltration detection device structure cross-sectional view.

In the figure: 1. a bolt; 2. a water seepage detection device; 21. a connecting pipe; 22. a metal core component; 23. an insulation resistance tester; 3. an isolation transformer tank cover plate; 4. a probing cable; 5. a seal ring; 6. bending the pipe; 7. isolating the transformer tank body; 8. a nylon waterproof joint; 9. a first nylon waterproof joint; 10. a nylon waterproof connector II; 11. wire clamps; 12. a cable inlet and outlet hole; 13. and (4) a ground bar.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: an isolation transformer box with a water seepage detection device comprises an isolation transformer box cover plate 3, an isolation transformer box body 7 and a water seepage detection device 2, wherein the isolation transformer box cover plate 3 is embedded and arranged in the isolation transformer box body 7, the isolation transformer box cover plate 3 is connected with the isolation transformer box body 7 through a bolt 1 and is provided with a sealing ring 5, the isolation transformer box body 7 is provided with a cable inlet and outlet wire hole 12, the cable inlet and outlet wire hole 12 comprises a nylon waterproof joint 8, a nylon waterproof joint I9 and a nylon waterproof joint II 10, the nylon waterproof joint 8, the nylon waterproof joint I9 and the nylon waterproof joint II 10 are fixed and block the cable inlet and outlet wire hole 12, the top of the isolation transformer box body 7 is provided with the water seepage detection device 2, the inner side wall of the water seepage detection device 2 is provided with a detection cable 4, and the detection cable 4 passes through a bent pipe 6 to enter the isolation transformer, the detection cable 4 is fixed on the inner wall of the isolation transformer box body 7 through a wire clamp 11, the outer wall of the isolation transformer box body 7 is fixedly connected with the bent pipe 6, the inner wall of the isolation transformer box body 7 is provided with a grounding bar 13, and the grounding bar 13 is welded with the isolation transformer box body 7.

The water seepage detection device 2 comprises a connecting pipe 21 fixedly arranged at the top of the isolation transformer box body 7, the top of the connecting pipe 21 is connected with a metal core assembly 22, an insulation resistance tester 23 is arranged at the top of the metal core assembly 22, the connecting pipe 21 is in threaded connection with the elbow 6, and the water seepage detection device 2 can be used for conveniently detecting whether the isolation transformer box body 7 is filled with water or not, so that the time for opening the isolation transformer box is saved;

the sealing ring 5 is a silicon rubber sealing ring, so that the service life of the sealing ring is prolonged;

the grounding bar 13 is a 4-hole M5 grounding bar;

example (b): firstly, installing and fixing an isolation transformer box body 7, laying a cable into the isolation transformer box body 7, respectively penetrating a nylon waterproof connector 8, a nylon waterproof connector 9, a nylon waterproof connector 10 and a cable head on the cable and locking the nylon waterproof connector on the isolation transformer box body 7, then manufacturing a cable head, installing an isolation transformer, respectively connecting a cable head grounding wire and an isolation transformer grounding wire on a grounding bar 13, then installing a sealing ring 5, fixing an isolation transformer box cover plate 3 on the isolation transformer box body 7 by using a bolt 1, during the system work, respectively lapping on a metal core assembly 22 of a water seepage detection device 2 and the isolation transformer box body 7 by using two pen points of an insulation resistance tester, when water in the isolation transformer box does not pass through a test head on the insulation resistance tester 23 in the water seepage detection device 2, the resistance value of an ohm meter is small, when no water exists in the isolation transformer box, the resistance value of the ohmmeter is infinite, and the time for opening the isolation transformer box in maintenance is greatly saved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Take infiltration detection device's isolation transformer case, including isolation transformer case apron (3), isolation transformer case box (7), infiltration detection device (2), its characterized in that: isolation transformer case apron (3) embedding setting is installed in isolation transformer case box (7), isolation transformer case apron (3) is connected and is provided with sealing washer (5) through bolt (1) with isolation transformer case box (7), isolation transformer case box (7) are provided with cable and advance wire hole (12), wire hole (12) are advanced to the cable includes nylon water joint (8), nylon water joint (9), nylon water joint two (10), and nylon water joint (8), nylon water joint one (9), nylon water joint two (10) are fixed and shutoff cable advances wire hole (12), the top of isolation transformer case box (7) is provided with infiltration detection device (2), the inside wall of infiltration detection device (2) is equipped with detection cable (4), detection cable (4) pass return bend (6) and get into isolation transformer case box (7), the detection cable (4) is fixed on the inner wall of the isolation transformer box body (7) through a wire clamp (11), the outer wall of the isolation transformer box body (7) is fixedly connected with the bent pipe (6), and the inner wall of the isolation transformer box body (7) is provided with a grounding bar (13).

2. The isolation transformer tank with water seepage detection device according to claim 1, characterized in that: infiltration detection device (2) are including fixed connecting pipe (21) that set up at isolation transformer box (7) top, metal core subassembly (22) is connected at the top of connecting pipe (21), the top of metal core subassembly (22) sets up insulation resistance tester (23), connecting pipe (21) and return bend (6) threaded connection.

3. The isolation transformer tank with water seepage detection device according to claim 1, characterized in that: the sealing ring (5) is a silicon rubber sealing ring.

4. The isolation transformer tank with water seepage detection device according to claim 1, characterized in that: the grounding bar (13) is a 4-hole M5 grounding bar.