CN210898839U

CN210898839U - Mounting structure of current transformer for three-phase synchronous generator

Info

Publication number: CN210898839U
Application number: CN201922110137.3U
Authority: CN
Inventors: 赵伟生; 邱万成
Original assignee: WUXI FARADAY ALTERNATORS CO Ltd
Current assignee: WUXI FARADAY ALTERNATORS CO Ltd
Priority date: 2019-11-30
Filing date: 2019-11-30
Publication date: 2020-06-30
Anticipated expiration: 2029-11-30

Abstract

The utility model relates to a mounting structure for three-phase synchronous generator's current transformer, its characterized in that: including the generator housing, the wiring support is fixed to be set up on the generator housing, insulating connection terminal fixed connection wiring support, main line copper bar fixed mounting that goes out is on insulating connection terminal, the mutual-inductor support is fixed to be set up in main line copper bar below of going out, the mutual-inductor support includes the base plate, the box body of rectangle is fixed to be set up on the base plate, the box body comprises two end plates and 2 curb plates, 3 current transformer that have the rectangle mounting hole arrange in the box body of mutual-inductor support, 3 current transformer are fixed through the nylon ribbon each other, 2 current transformer of both sides pass through the nylon ribbon with the end plate and fix. The utility model discloses simple structure is compact, adopts mutual-inductor support fixed mounting current transformer, ensures that the mutual-inductor is firmly fixed, under the abominable operational environment of generator, avoids the not hard up landing of static part, guarantees equipment operation safety.

Description

Mounting structure of current transformer for three-phase synchronous generator

Technical Field

The utility model relates to a generator especially relates to a current transformer's mounting structure for three-phase synchronous generator.

Background

The current transformer has very important function in modern power generation equipment as a current conversion device, can realize current conversion and isolation, converts large current of a high-voltage or low-voltage loop into low-voltage small current, and supplies the low-voltage small current to an instrument and a relay protection device to realize the functions of measurement, protection and the like. Among the prior art, the installation of mutual-inductor on the generator is generally fastened on the generator owner's copper bar of being qualified for the next round of competitions with the help of installation accessory fastening screw and plastics pressure disk, and behind the generating set was installed to the generator, because the operational environment is abominable, the unit vibration is big, leads to fastening screw, the not hard up landing of plastics pressure disk, falls into the generator inside, and the not hard up unable fastening of mutual-inductor finally leads to equipment to damage, causes unnecessary economic loss.

SUMMERY OF THE UTILITY MODEL

The current transformer mounting structure for the three-phase synchronous generator is simple and compact in structure and convenient to mount, ensures that the transformer is firmly fixed, avoids fixed parts from loosening and sliding down under the severe operation environment of the generator, ensures the operation safety of equipment and avoids unnecessary economic loss.

In order to solve the technical problem, the utility model discloses a following technical scheme:

a mounting structure for a current transformer of a three-phase synchronous generator comprises a generator shell, wherein a wiring support is fixedly arranged on the generator shell, an insulating wiring base is fixedly connected with the wiring support, a main outgoing line copper bar is fixedly arranged on the insulating wiring base, the transformer support is fixedly arranged below the main outgoing line copper bar and comprises a base plate, a rectangular box body is fixedly arranged on the base plate and consists of two end plates and 2 side plates, the end plates are higher than the side plates, a heat-shrinkable sleeve is sleeved on the end plates in a heat-shrinkable manner, 2 supporting lug plates are arranged on one side of the base plate, folding lugs perpendicular to the base plate are arranged at two ends of the base plate, and screw holes are respectively arranged on the supporting lug plates and the folding lugs; the supporting lug plate of the mutual inductor support is fixedly connected with the wiring support, and the folding lug of the mutual inductor support is fixedly connected with an outlet box; 3 current transformer that has the rectangle mounting hole arranges in the box body of mutual-inductor support, 3 current transformer is fixed through the nylon ribbon each other, 2 of both sides current transformer with the end plate passes through the nylon ribbon fixed, 3 the main copper bar extension of being qualified for the next round of competitions current transformer's mounting hole.

Further:

3 the current transformer below be provided with corresponding mounting groove on the base plate of mutual-inductor support, the mounting groove sets up the edge of curb plate, the length of mounting groove with current transformer's rectangle mounting hole length is the same, and the nylon ribbon passes the mounting groove is with 3 current transformer with the curb plate is fixed.

And the base plate on the inner sides of the 2 end plates and the 2 side plates of the box body is provided with a foamed rubber sealing strip in an attached mode.

The technical effects of the utility model reside in that:

the utility model relates to a current transformer's mounting structure for three-phase synchronous generator, simple structure is compact, and simple to operate adopts mutual-inductor support fixed mounting current transformer, ensures that the mutual-inductor is firmly fixed, under the abominable operational environment of generator, avoids the not hard up landing of static part, guarantees equipment operation safety, avoids unnecessary economic loss.

Drawings

Fig. 1 is a schematic diagram of the three-dimensional structure of the present invention.

Fig. 2 is a schematic three-dimensional structure diagram of the transformer support.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

As shown in fig. 1, 2, the utility model discloses a generator housing 7, the fixed setting of wiring support 8 is on generator housing 7, insulating connection terminal support 9 fixed connection wiring support 8, the main copper bar 3 fixed mounting that is qualified for the next round of competitions is on insulating connection terminal 9, mutual-inductor support 1 is fixed to be set up in the main copper bar 3 below of being qualified for the next round of competitions, mutual-inductor support 1 includes base plate 11, the fixed setting on base plate 11 of box body 12 of rectangle, box body 12 comprises two

end plates

13 and 2 curb plates 14, end plate 13 is higher than curb plate 14, 5 pyrocondensation suit of pyrocondensation sleeve pipe are on end plate 13, one side of base plate 11 is equipped with 2 and supports otic placode 18, the both ends of base plate 11 are equipped with the ear of rolling over 16 of perpendicular to base plate. The support otic placode 18 of mutual-inductor support 1 passes through screw hole 19 and screw fixed connection wiring support 8, and the ear of book 16 of mutual-inductor support 1 passes through screw hole 17 and screw fixed connection outlet box (outlet box is not drawn in the picture, and outlet box fixes on the generator housing and can hold the utility model discloses an all components). 3 current transformer 2 that have the rectangle mounting hole are arranged in mutual-inductor support 1's box body 12, 3 current transformer 2 are fixed through nylon ribbon 6 each other, 2 current transformer 2 of both sides are fixed through nylon ribbon 6 with end plate 13, 3 main copper bar 3 extensions that are qualified for the next round of competitions extend the mounting hole of current transformer 2, such structure makes 3 current transformer 2 fix on mutual-inductor support 1 that has firmly fixed, and 3 fixed mounting of main copper bar 9 that are qualified for the next round of competitions, thereby make current transformer 2's fixed firm. In this implementation, be provided with corresponding mounting groove 15 on the base plate 11 of mutual-inductor support 1 of 3 current transformer 2 below, mounting groove 15 sets up the edge at curb plate 14, it is equipped with 6 mounting grooves 15 altogether to correspond 3 current transformer 2, the length of mounting groove 15 is the same with current transformer 2's rectangle mounting hole length, nylon ribbon 6 passes mounting groove 15 and fixes 3 current transformer 2 and curb plate 14, it is more firm to make 3 current transformer 2's fixed like this, under the abominable operational environment of generator, avoid fixed part not hard up landing, guarantee equipment operation safety, avoid unnecessary economic loss.

In addition, the foamed rubber sealing strip 4 is attached to the base plate 11 on the inner side of the 2 end plates 13 and the 2 side plates 14 of the box body 12, that is, a layer of foamed rubber sealing strip 4 is arranged between the current transformer 2 and the base plate 11 of the transformer bracket 1, so that the vibration reduction effect can be achieved.

Claims

1. The utility model provides a mounting structure for current transformer of three-phase synchronous generator which characterized in that: the transformer comprises a generator shell, wherein a wiring support is fixedly arranged on the generator shell, an insulating wiring base is fixedly connected with the wiring support, a main outgoing line copper bar is fixedly arranged on the insulating wiring base, a transformer support is fixedly arranged below the main outgoing line copper bar, the transformer support comprises a base plate, a rectangular box body is fixedly arranged on the base plate, the box body consists of two end plates and 2 side plates, the end plates are higher than the side plates, a heat-shrinkable sleeve is sleeved on the end plates in a heat-shrinkable manner, 2 supporting lug plates are arranged on one side of the base plate, folding lugs perpendicular to the base plate are arranged at two ends of the base plate, and screw holes are respectively arranged on the supporting lug plates and the folding lugs; the supporting lug plate of the mutual inductor support is fixedly connected with the wiring support, and the folding lug of the mutual inductor support is fixedly connected with an outlet box; 3 current transformer that has the rectangle mounting hole arranges in the box body of mutual-inductor support, 3 current transformer is fixed through the nylon ribbon each other, 2 of both sides current transformer with the end plate passes through the nylon ribbon fixed, 3 the main copper bar extension of being qualified for the next round of competitions current transformer's mounting hole.

2. The mounting structure of a current transformer for a three-phase synchronous generator according to claim 1, wherein: 3 the current transformer below be provided with corresponding mounting groove on the base plate of mutual-inductor support, the mounting groove sets up the edge of curb plate, the length of mounting groove with current transformer's rectangle mounting hole length is the same, and the nylon ribbon passes the mounting groove is with 3 current transformer with the curb plate is fixed.

3. The mounting structure of a current transformer for a three-phase synchronous generator according to claim 1, wherein: and the base plate on the inner sides of the 2 end plates and the 2 side plates of the box body is provided with a foamed rubber sealing strip in an attached mode.