CN205303956U - Automatic switching compensation cabinet mounting structure divides into groups - Google Patents

Abstract

The utility model discloses an automatic switching compensation cabinet mounting structure divides into groups, it does not set up electric capacity inlet wire cabinet to divide into groups automatic switching compensation cabinet, with its and capacitor box incorporation all the way, cable of high pressure is introduced after the capacitor box body from the cable pit, through high voltage sensor lug connection to the isolation switch, and then guide to on horizontal main female the arranging at top, the rethread phase separating is female arranges, the inlet wire end of bending and introducing capacitor box's vacuum contactor behind the overlap joint, come out to connect current transformer from vacuum contactor, directly guide to the lower extreme through the insulator, and through spout peck the formula fuse after, insert the one end of condenser, the other end of condenser draws copper strands and is connected to in the corresponding inlet wire phase sequence of series connection iron -core reactor, it is parallelly connected through the leading -out terminal of reactor at last, for the arrester copper strands connect in current transformer lower extreme, discharge coil then utilize copper strands to connect in parallel in the both ends of condenser. The utility model discloses practiced thrift the automatic switching compensation cabinet's that divides into groups installation space, overhauld simple and conveniently.

Description

A group automatic switching compensation cabinet installation structure

technical field

The utility model relates to the technical field of reactive power compensation, in particular to a grouping automatic switching compensation cabinet installation structure.

Background technique

At present, the reactive power compensation device has become an effective measure to improve the power supply situation and increase the utilization rate of electric energy. The national power department stipulates that all places where low-voltage transformers and large-scale electrical equipment are installed should be equipped with reactive power compensation devices. The mode and structure can be divided into outdoor, indoor, frame type, cabinet type, fixed switching, group automatic switching and other types. Among them, the group automatic switching type is widely used because it can adjust the compensation capacity according to the load change. However, because some factory facilities were built in the early years, there are space restrictions if they need to be rebuilt now, and there is not enough space in many places. Therefore, we can only carry out multiple capacity transformations according to the situation. This kind of repeated construction increases the input cost and causes waste.

Utility model content

The purpose of this utility model is to solve the problems mentioned in the above background technology part through a group automatic switching compensation cabinet installation structure.

For this purpose, the utility model adopts the following technical solutions:

A group automatic switching compensation cabinet installation structure, wherein, the group automatic switching compensation cabinet includes but not limited to isolating switch, current transformer, vacuum contactor, lightning arrester, discharge coil, pecking fuse, capacitor, Reactors, connecting busbars, high-voltage controllers, and microcomputer protection units installed in the secondary room; the group automatic switching compensation cabinet is not equipped with a capacitor incoming cabinet, which is combined with a capacitor cabinet. In the above-mentioned capacitor cabinet, after the high-voltage primary cable is introduced into the capacitor cabinet from the cable trench, it is directly connected to the isolation switch through the high-voltage sensor, and then led to the top horizontal main busbar, and then passed through the phase-splitting busbar. After being bent and overlapped, it is introduced into the inlet end of the vacuum contactor of the capacitor cabinet, and connected to the current transformer from the vacuum contactor, directly leading to the lower end through the insulator, and passing through the spray pecking type After the fuse, one end of the capacitor is connected, and the other end of the capacitor is connected to the corresponding phase sequence of the incoming line of the series iron core reactor through the copper stranded wire at the other end, and finally connected in parallel through the outlet end of the reactor to realize A , B, C three-phase star connection; the lightning arrester is connected to the lower end of the current transformer with a copper stranded wire, and the discharge coil is connected in parallel to the two ends of the capacitor with a copper stranded wire; similarly, other capacitor cabinets They are also introduced into the corresponding cabinets through the main busbars at the top with branch connection bars.

In particular, the inlet end of the vacuum contactor introduced into the capacitor cabinet after being bent and overlapped specifically includes: Incoming terminal.

The installation structure of the group automatic switching compensation cabinet proposed by the utility model not only reduces the overall size of the cabinet body, but also has all the necessary components for all the group automatic switching compensation cabinets. Unlike other existing solutions, in order to reduce the The small size directly removes the isolation knife gate, etc., thereby bringing safety hazards to the maintenance personnel; at the same time, most of the components in the utility model adopt the structural form of front and rear arrangement, so that the maintenance personnel can directly remove the damaged components from the front and rear doors. The device is taken out, and the maintenance is simple and convenient. The utility model saves the installation space of the group automatic switching compensation cabinet, and can install the group automatic compensation cabinet in a limited space.

Description of drawings

Fig. 1 is a schematic structural diagram of the group automatic switching compensation cabinet provided by the embodiment of the present invention;

Fig. 2 is a schematic diagram of the installation structure of the group automatic switching compensation cabinet provided by the embodiment of the present invention;

Fig. 3-1 is the left view of the group automatic switching compensation cabinet provided by the embodiment of the utility model;

Figure 3-2 is the front view of the group automatic switching compensation cabinet provided by the embodiment of the utility model;

Figure 3-3 is the front view of the group automatic switching compensation cabinet provided by the embodiment of the utility model;

Figure 4-1 is the front view of the group automatic switching compensation cabinet provided by the embodiment of the utility model;

Fig. 4-2 is the right side view of the group automatic switching compensation cabinet provided by the embodiment of the utility model.

detailed description

In order to facilitate the understanding of the utility model, the utility model will be described more fully below with reference to the relevant drawings. Preferred embodiments of the utility model are provided in the accompanying drawings. However, the invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present utility model more thorough and comprehensive. It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for purposes of illustration only and are not intended to represent the only embodiments. Unless otherwise defined, all techniques and terms used herein have the same meaning as commonly understood by those skilled in the technical field of the present invention. The terminology used in the description of the utility model herein is only for the purpose of describing specific embodiments, and is not intended to limit the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

In this embodiment, the installation structure of group automatic switching compensation cabinets specifically includes: the group automatic switching compensation cabinets include but not limited to isolation switches, current transformers, vacuum contactors, lightning arresters, discharge coils, pecking fuses, Capacitors, reactors, connecting busbars, high-voltage controllers and microcomputer protection units installed in the secondary room. The group automatic switching compensation cabinet is not equipped with a capacitor incoming cabinet, which is combined with a capacitor cabinet. In the incoming line and the capacitor cabinet, after the high-voltage primary cable is introduced into the capacitor cabinet from the cable trench, it is directly connected to the capacitor cabinet through the high-voltage sensor. Connect to the isolation switch, and then lead to the top horizontal main busbar, and then pass through the phase-splitting busbar, bend and overlap at 90 degrees, and lead to the incoming line of the vacuum contactor of the capacitor cabinet Connect to the current transformer from the vacuum contactor, lead directly to the lower end through the insulator, and connect to one end of the capacitor after passing through the pecking fuse, and the other end of the capacitor leads to copper The twisted wires are connected to the corresponding phase sequence of the incoming line of the series iron core reactor, and finally connected in parallel through the outlet terminals of the reactors to realize the star connection of the three phases A, B, and C; the lightning arrester is connected to the The lower end of the current transformer and the discharge coil are connected in parallel to both ends of the capacitor by using copper stranded wires; similarly, other capacitor cabinets are also introduced into the corresponding cabinets through the main busbar on the top with branch connection rows . The connecting busbars include the above-mentioned main busbars and phase-splitting busbars. For the specific installation positions of the components in the group automatic switching compensation cabinet provided in this embodiment, this embodiment provides Figure 1, Figure 2, Figure 3-1, Figure 3-2, Figure 3-3, Figure 4- 1. Figure 4-2 is further intuitively explained, among which, Figures 3-1 to 3-3 are the installation conditions of the capacitor cabinet 200Kvar, Figure 4-1 and Figure 4-2 are the installation conditions of the capacitor cabinet 300Kvar, QS in the figure KM is a vacuum contactor, TC is a current transformer, FV is a lightning arrester, FU is a spray fuse, C is a capacitor, TV is a discharge coil, L is a reactor, HPS is a high voltage sensor, DWK is High-voltage controller, DWB is the microcomputer protection unit, 201 is the incoming line and No. 1 capacitor cabinet, 202 is the No. 2 capacitor cabinet, 203 is the No. 3 capacitor cabinet, 204 is the incoming cable, 205 is the capacitor frame, 206 is the insulator, 1 , 2, 3 are the capacitor cabinet door, 207 is the door lock, 208 is the observation window, 209 is the electromagnetic lock, 210 is the operating handle of the isolation knife switch, 211 is the fan switch, 212 is the indicator light and button switch, 213 is installed on the second The high-voltage sensor display of the cabinet door of the secondary room, 301 is the connection busbar, 302 is the cable, 303 is the insulator, 401 is the connection busbar, and 402 is the insulator.

The technical solution of the utility model not only reduces the overall size of the cabinet, but also has all the components necessary for all group automatic switching compensation cabinets, unlike other existing solutions that directly remove the isolation knife in order to reduce the size Gates, etc., thereby bringing potential safety hazards to the maintenance personnel; at the same time, most of the components in the utility model are arranged in the front and rear structural forms, so that the maintenance personnel can directly take out the damaged components from the front and rear doors, and the maintenance is simple and convenient. The utility model saves the installation space of the group automatic switching compensation cabinet, and can install the group automatic compensation cabinet in a limited space.

Note that the above are only preferred embodiments of the present invention and the applied technical principles. Those skilled in the art will understand that the utility model is not limited to the specific embodiments described here, and various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the protection scope of the utility model. Therefore, although the utility model has been described in detail through the above embodiments, the utility model is not limited to the above embodiments, and can also include more other equivalent embodiments without departing from the concept of the utility model. The scope of the present invention is determined by the appended claims.

Claims (2)

1. a grouping automatic switching compensating tank installs structure, it is characterized in that, described grouping automatic switching compensating tank includes but not limited to that isolation knife lock, current transformer, vacuum contactor, thunder arrester, discharge coil, spray peck formula fusible cut-out, electrical condenser, reactor, connection busbar and the high pressure controller being installed in secondary chamber, microcomputer protection unit, described grouping automatic switching compensating tank does not arrange electric capacity incoming line cabinet, Qi Yu mono-road capacitor box is merged, in inlet wire and described capacitor box, high pressure cable is introduced after electric capacity cabinet from cable trench, it is directly connected on described isolation knife lock by high-voltage sensor, and then on the main busbar of the transverse direction guiding to top, again by phase-splitting busbar, bending is incorporated into the end of incoming cables of the described vacuum contactor of described capacitor box after overlapping, described current transformer is out connect from described vacuum contactor, lower end is directly guided to by insulator, and after pecking formula fusible cut-out by described spray, access one end of described electrical condenser, the other end of described electrical condenser draws copper stranded conductor and is connected in the series connection corresponding inlet wire phase sequence of iron core reactor, leading-out terminal finally by described reactor is in parallel, realize A, B, the star type of C three-phase connects, described thunder arrester copper stranded conductor is connected to the lower end of described current transformer, and discharge coil then utilizes copper stranded conductor to be parallel to the two ends of described electrical condenser, with reason, other capacitor box also connects row with branch road respectively by the main busbar at top to be introduced among corresponding cabinet.

2. grouping automatic switching compensating tank according to claim 1 installs structure, it is characterized in that, described bending is incorporated into the end of incoming cables of the described vacuum contactor of described capacitor box after overlapping, specifically comprise: 90 degree of bendings are incorporated into the end of incoming cables of the described vacuum contactor of described capacitor box after overlapping.