CN204668169U - A kind of shunting switch controller for main transformer pressure regulation - Google Patents

Abstract

The utility model discloses a tap changer controller used for voltage regulation of a main transformer, which comprises a controller base and a PCB control board. The controller base is fixed with a V-shaped card slot, and the V-shaped card slot is composed of oppositely arranged The bottom is composed of two arc-shaped shrapnels. There are multiple connected copper-clad contacts corresponding to the bottom ends of the front and back of the PCB control board. The two shrapnels of the V-shaped card slot are respectively connected to the front and back of the PCB control board. The copper contacts on the back make contact. The utility model has the advantages of reasonable structure and convenient use. The V-shaped card slot clamps the PCB control board in the middle, which reduces the probability of oxidation, and can ensure that the contact between the copper-clad contact of the PCB control board and the V-shaped card slot is easier. It is firm and has better contact performance, which makes the output voltage regulation command of the voltage regulation controller more stable, which can greatly reduce the phenomenon of "rejection" of voltage regulation, avoid the occurrence of power events (accidents), and ensure the qualified rate of power system voltage .

Description

A tap changer controller for voltage regulation of main transformer

technical field

The utility model relates to a main transformer voltage regulating controller, in particular to a tap switch controller used for main transformer voltage regulating.

Background technique

The main transformer is the most important electrical equipment in the power system. It plays the role of transmitting electric energy and regulating voltage. It is one of the important factors that determine whether the power system can safely supply power; and the voltage regulation controller is the key to determine the voltage regulation performance of the main transformer. The performance of components will directly affect the voltage regulation function of the main transformer.

The voltage regulating controller of the main transformer is the control center of the main transformer, and the contact performance between the control panel of the voltage regulating controller and the card slot on the base will directly affect the normal operation of the main transformer, and even directly affect the safety and stability of the power system. The card slot will inevitably oxidize under long-term use, so the design of the card slot is very important. The poor contact between the control board and the card slot will cause the main transformer to "refuse to move" during operation. Therefore, the development of a tap changer controller with excellent performance is conducive to the safe operation of the main transformer and ensures the reliability of power supply.

Contents of the invention

The purpose of this utility model is to provide an improved tap changer controller for voltage regulation of the main transformer in view of the deficiencies of the prior art. It greatly reduces the phenomenon of "rejection" of voltage regulation, avoids the occurrence of power events (accidents), and thus ensures the qualified rate of power system voltage.

The technical scheme that realizes the utility model purpose is:

A tap changer controller for voltage regulation of a main transformer, including a controller base and a PCB control board, which is different from the prior art in that a plurality of V-shaped card slots are fixed on the controller base, and the V-shaped card slots It is composed of two downward arc-shaped shrapnels oppositely arranged. There are a plurality of connected copper-clad contacts at the bottom of the front and back of the PCB control board. The two shrapnels of the V-shaped card slot are respectively connected to the PCB. The copper-clad contacts on the front and back of the control board are in contact, and the PCB control board is firmly sandwiched in the middle.

The base of the controller is provided with a terminal groove, and the bottom surface of the V-shaped card groove is provided with a through hole overlapping with the through hole in the terminal groove, and a screw rod is set to pass through the through hole to fix the V-shaped card groove and the terminal groove. The height of the V-shaped card slot is greater than the height of the terminal slot.

The number of the V-shaped card slots is the same as the number of the terminal slots.

The switch controller of the utility model is connected with the external circuit through the copper-clad contacts on the PCB control board. 220V.

The utility model has the advantages of reasonable structure and convenient use. The V-shaped card slot clamps the PCB control board in the middle, which reduces the probability of oxidation, and can ensure that the contact between the copper-clad contact of the PCB control board and the V-shaped card slot is more accurate. It is firm and has better contact performance, which makes the output voltage regulation command of the voltage regulation controller more stable, which can greatly reduce the phenomenon of "rejection" of voltage regulation, avoid the occurrence of power events (accidents), and ensure the qualified rate of power system voltage .

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a structural schematic diagram of the controller base of the present invention.

In the figure: 1. V-shaped card slot 1-1. First shrapnel 1-2. Second shrapnel 1-3. Through hole 2. PCB control board 2-1. Copper-clad contacts 3. Controller base 4. Terminals groove.

Detailed ways

The content of the utility model will be further described below in conjunction with the accompanying drawings and embodiments, but the utility model is not limited thereto.

Example

Referring to Figure 1-2, a tap changer controller for main transformer voltage regulation, including a controller base 3 and a PCB control board 2, the controller base 3 is fixed with a plurality of V-shaped card slots 1, V-shaped The card slot 1 is composed of a downward arc-shaped first elastic piece 1-1 and a second elastic piece 1-2 which are oppositely arranged, and a plurality of connected copper clad plates are arranged on the bottom ends of the front and back of the PCB control board 2 correspondingly. The contact 2-1, the first elastic piece 1-1 and the second elastic piece 1-2 of the V-shaped card slot 1 are respectively in contact with the copper-clad contacts 2-1 on the front and back of the PCB control board 2, so that the PCB control board 2 is tightly clamped in the middle of the V-shaped card slot 1, the contact between the two is firmer, the contact performance is better, and the chance of oxidation is reduced.

The base 3 of the controller is provided with a terminal groove 4, and the bottom surface of the V-shaped card groove 1 is provided with through holes 1-3 overlapping with the through holes in the terminal groove 4, and the V The V-shaped card slot 1 is fixedly connected with the terminal slot 4, and the height of the V-shaped card slot 1 is greater than that of the terminal slot 4.

The number of V-shaped card slots 1 is the same as the number of terminal slots 4, which is 28 in this example.

In this example, there are 14 copper-clad contacts 2-1 on the front and back of the PCB control board 2 respectively.

The central processing unit (CPU) of the controller is fixed on the PCB control board 2, and the "voltage regulation" command of the main transformer is issued by the CPU, which is the processing core of the entire controller.

When the voltage in the power system is low and needs to be "downshifted" through the main transformer, the central processing unit (CPU) issues a downshift command, which is transmitted to the copper-clad contact 2-1, and then passes through the shrapnel of the V-shaped card slot 1 Send it to the external circuit until the main transformer shifting mechanism box, and the drive motor will "downshift" the main transformer.

Claims (3)

1. the shunting switch controller for main transformer pressure regulation, comprise controller base and PCB control board, it is characterized in that: controller base is fixed with multiple V-type draw-in groove, V-type draw-in groove is made up of two the curved downwards shell fragments be oppositely arranged, correspondingly in the bottom of PCB control board front and back be provided with multiple deposited copper contact be connected, two shell fragments of V-type draw-in groove contact with the deposited copper contact at front, the back side on PCB control board respectively.

2. the shunting switch controller for main transformer pressure regulation according to claim 1, it is characterized in that: the base of described controller is provided with terminal groove, the through hole that the bottom surface of V-type draw-in groove is provided with in through hole and terminal groove overlaps, arrange screw mandrel to be fixedly connected with terminal groove by V-type draw-in groove through through hole, the height of V-type draw-in groove is greater than the height of terminal groove.

3. the shunting switch controller for main transformer pressure regulation according to claim 1, is characterized in that: the quantity of described V-type draw-in groove is identical with the quantity of controller base upper end pilot trench.