CN215528600U

CN215528600U - 35kV automatic bypass type high-voltage PCS structure

Info

Publication number: CN215528600U
Application number: CN202121547371.3U
Authority: CN
Inventors: 高海星; 李志刚; 房科科; 姚海嘉; 梁开来; 刘继新; 苏刘军
Original assignee: Windsun Science and Technology Co Ltd
Current assignee: Windsun Science and Technology Co Ltd
Priority date: 2021-07-08
Filing date: 2021-07-08
Publication date: 2022-01-14
Anticipated expiration: 2031-07-08

Abstract

A35 kV automatic bypass type high-voltage PCS structure relates to the technical field of high-voltage PCS devices and solves the problem that sudden shutdown of high-voltage PCS equipment can affect normal use of a client to cause the client to be examined by a power grid due to the sudden shutdown; the equipment continues normal operation without stopping, and sudden stop of the high-voltage PCS device due to power unit failure is avoided.

Description

35kV automatic bypass type high-voltage PCS structure

Technical Field

The utility model relates to a 35kV high-voltage PCS device, in particular to a 35kV automatic bypass type high-voltage PCS structure.

Background

At present, when a power unit of a 35kV high-voltage PCS device fails, the device reports that the device is suddenly stopped due to failure. In order not to affect the normal operation of the equipment, the failed unit needs to be short-circuited by a copper bar or a cable, and then the power-on operation is continued. Under the condition, the device needs to be shut down firstly after the fault occurs, then the main power supply of the device is cut off, and then the fault unit is manually short-circuited, so that the device can be powered on again to operate. The normal use of a customer can be influenced by the sudden stop of the high-voltage PCS equipment, so that the customer is examined by a power grid due to the sudden stop.

Disclosure of Invention

In order to solve the problems, the utility model provides a 35kV automatic bypass type high-voltage PCS structure, and provides a scheme for solving the problem that a 35kV high-voltage PCS device is suddenly stopped due to a power unit fault. In order to achieve the purpose, the utility model adopts the technical scheme that: the utility model provides an automatic bypass formula high pressure PCS structure of 35kV, includes automatic bypass subassembly of unit and one-level voltage isolation subassembly, one-level voltage isolation subassembly include signal transfer board and 35kV isolation transformer, the automatic bypass subassembly of unit include power unit, bypass copper bar, bypass contactor, bypass control panel and 10kV isolation transformer, 35kV isolation transformer be connected with 10kV isolation transformer, 10kV isolation transformer is connected with bypass contactor, bypass contactor is connected with power unit through the bypass copper bar, the bypass control panel be connected with bypass contactor, control bypass contactor, the signal transfer board be connected with the bypass control panel, the opening and shutting of control bypass contactor makes power unit automatic disconnection and connection, reaches the purpose of the automatic bypass of power unit.

Further, the bypass control board and the bypass contactor are fixed by a bypass assembly fixing box.

Furthermore, the 35kV isolation transformer is fixed on a channel steel base of the primary isolation frame, and the signal transfer plate is fixed through SMC insulation transverse and vertical supports in the primary isolation frame.

Further, the signal transfer board is connected with the bypass control board through an optical fiber, and the optical fiber is fixed through an SMC 40-40L-shaped bracket.

Furthermore, the primary side of the 35kV isolation transformer is supplied with power by 380V, the secondary side of the 35kV isolation transformer is connected with the primary side of the 10kV isolation transformer through a cable, and the cable is fixed through SMC insulation transverse and vertical supports in the primary isolation frame, so that the safe insulation distance of the cable to the ground is achieved.

Compared with the prior art, the utility model has the following beneficial effects: when the power unit needs to be short-circuited in field debugging of equipment, the automatic bypass of the power unit can be completed only by clicking the control panel, the high-voltage electricity does not need to be cut off, and then the power unit short-circuit copper bar and the fixing bolt are manually connected, so that the power unit short-circuit efficiency is improved. When a plurality of power units of the equipment are in fault during operation, the program set fault unit is automatically bypassed, the equipment continues to operate normally without stopping, sudden stop of the high-voltage PCS device due to fault of the power units is avoided, and a customer is prevented from being examined by a power grid due to sudden stop of the power units due to fault of the power units.

Drawings

The present invention is described in further detail below with reference to the attached drawings.

FIG. 1 is a schematic structural view of a unit automatic bypass assembly of the present invention;

FIG. 2 is a schematic structural diagram of a primary voltage isolation assembly of the present invention;

FIG. 3 is a rear view of the present invention;

in the drawings: 1. the power unit, 2, bypass copper bar, 3, bypass contactor, 4, bypass control panel, 5, 10kV isolation transformer, 6, the fixed box of bypass subassembly, 7, one-level isolation frame, 8, signal transfer board, 9, 35kV isolation transformer, 10, SMC40 × 40L type support.

Detailed Description

In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be further described with reference to fig. 1, fig. 2, and fig. 3, and specific embodiments.

As shown in attached figures 1, 2 and 3, the 35kV automatic bypass type high-voltage PCS structure comprises a unit automatic bypass assembly and a primary voltage isolation assembly, wherein the primary voltage isolation assembly comprises a signal transfer plate 8 and a 35kV isolation transformer 9, the unit automatic bypass assembly comprises a power unit 1, a bypass copper bar 2, a bypass contactor 3, a bypass control plate 4 and a 10kV isolation transformer 5, the 35kV isolation transformer 9 is connected with the 10kV isolation transformer 5, the 10kV isolation transformer 5 is connected with the bypass contactor 3, the bypass contactor 3 is connected with the power unit 1 through the bypass copper bar 2, the bypass control plate 4 is connected with the bypass contactor 3 to control the bypass contactor 3, the signal transfer plate 8 is connected with the bypass control plate 4 to control the opening and closing of the bypass contactor 3 to automatically disconnect and connect the power unit, the purpose of automatic bypass of the power unit is achieved.

Further, the bypass control board 4 and the bypass contactor 3 are fixed by a bypass assembly fixing case 6.

Furthermore, a 35kV isolation transformer 9 is fixed on a channel steel base of the primary isolation frame 7, and the signal transfer plate 8 is fixed through SMC insulation transverse and vertical supports in the primary isolation frame 7.

Further, the signal transfer plate 8 is connected to the bypass control plate 4 by an optical fiber, which is fixed by an SMC40 × 40L-shaped bracket 10.

Furthermore, the primary side of the 35kV isolation transformer 9 is supplied with power by 380V, the secondary side of the 35kV isolation transformer 9 is connected with the primary side of the 10kV isolation transformer 5 through a cable, and the cable is fixed through SMC insulation transverse and vertical supports in the primary isolation frame 7, so that the safe insulation distance of the cable to the ground is achieved.

The working principle and the working process of the utility model are as follows: when the on-site equipment debugging needs short circuit power unit 1, only need click control panel, signal transfer board 8 sends the instruction for bypass control board 4, and bypass control board 4 control bypass contactor 3 can accomplish the automatic bypass of power unit 1, need not disconnected high-voltage electricity reuse manual connection power unit short circuit copper bar and fixing bolt, has improved the efficiency of power unit short circuit.

The technical solutions of the present invention or similar technical solutions designed by those skilled in the art based on the teachings of the technical solutions of the present invention are all within the scope of the present invention.

Claims

1. A35 kV automatic bypass type high-voltage PCS structure comprises a unit automatic bypass assembly and a first-level voltage isolation assembly, and is characterized in that the first-level voltage isolation assembly comprises a signal transfer plate (8) and a 35kV isolation transformer (9), the unit automatic bypass assembly comprises a power unit (1), a bypass copper bar (2), a bypass contactor (3), a bypass control plate (4) and a 10kV isolation transformer (5), the 35kV isolation transformer (9) is connected with the 10kV isolation transformer (5), the 10kV isolation transformer (5) is connected with the bypass contactor (3), the bypass contactor (3) is connected with the power unit (1) through the bypass copper bar (2), the bypass control plate (4) is connected with the bypass contactor (3) to control the bypass contactor (3), the signal transfer plate (8) is connected with the bypass control plate (4), the opening and closing of the bypass contactor (3) are controlled to automatically disconnect and connect the power unit.

2. The 35kV automatic bypass high-voltage PCS structure of claim 1, wherein the bypass control board (4) and the bypass contactor (3) are fixed by a bypass module fixing box (6).

3. The 35kV automatic bypass type high-voltage PCS structure according to claim 1, characterized in that the 35kV isolation transformer (9) is fixed on a channel steel base of the primary isolation frame (7), and the signal transfer plate (8) is fixed through SMC insulation cross braces in the primary isolation frame (7).

4. The 35kV automatic bypass high-voltage PCS structure of claim 1, wherein the signal transfer plate (8) is connected to the bypass control plate (4) by means of an optical fiber, said optical fiber being fixed by means of SMC40 x 40L-shaped bracket (10).

5. The 35kV automatic bypass type high-voltage PCS structure according to claim 1 is characterized in that a primary side of a 5kV isolation transformer (9) is supplied with 380V, a secondary side of the 35kV isolation transformer (9) is connected with a primary side of a 10kV isolation transformer (5) through a cable, and the cable is fixed through SMC insulating transverse and vertical supports in a primary isolation frame (7) to achieve a safe insulation distance between the cable and the ground.