a feeder cabinet

Abstract

The invention discloses a feeder cabinet. The feeder cabinet comprises a cabinet body and a plurality of drawers which are arranged inside the cabinet body, wherein one side of each drawer is provided with a handle, a plastic-shell circuit breaker is arranged inside each drawer, the drawers are vertically arranged in parallel, and the feeder cabinet also comprises static plug-ins which are arranged inside the cabinet body and correspond to the drawers one by one, six or eight connecting copper bars and three to four vertical bus-bars, one side, opposite to the handle, of the drawer is provided with a movable plug-in, and the quantity of the static plug-ins is identical to that of the movable plug-ins. Each movable plug-in comprises a movable plug-in outgoing block and a movable plug-in incoming block, and the movable plug-in outgoing block and the movable plug-in incoming block are respectively provided with copper bar connecting pieces in the same number. The feeder cabinet has the beneficial effects that a safety distance between every two phases is increased, the unfavorable situation in plug connection can be discovered in time, and the safety is improved. The safety potential danger is reduced. When one drawer loop needs to be replaced, the drawer loop can be replaced without powering off the entire feeder cabinet.

Description

technical field [0001] The invention relates to a power feeding cabinet. Background technique [0002] The feeder cabinet is mainly used for distributing the charge. At present, there are two kinds of MNS and GCK low-voltage switchgears that are commonly used. But there have always been the following disadvantages: [0003] 1. For the drawer feeder cabinet GCK or MNS of the original low-voltage distribution cabinet (the drawer feeder cabinet GCK or MNS of the low-voltage switchgear), the drawer moving plug-in and the vertical busbar (line) are inserted and connected to the cabinet once. It cannot be seen from the outside whether the connection of the main circuit static plug-in copper bar connector is good or not. In actual use, accidents often occur due to poor connection. [0004] 2. Three-phase (A, B, C) or The four phases (A, B, C, N) are arranged horizontally without dislocation. The disadvantage is that the distance between three phases (A, B, C) or four phases (A,...

AI Technical Summary

Problems solved by technology

The disadvantage is that the distance between three phases (A, B, C) or four phases (A, B, C, N) has reached a safe distance during installation, which meets the national standard.

However, in actual use, the safety distance is often too short, which is not safe, and it is inconvenient to install, especially for high-current cables.

Even if an insulating partition is used between opposite phases, it is possible that the insulating partition will fall off, creating an unsafe factor

There are higher requirements for the safety distance of three-phase A, B, C, or four-phase A, B, C, N of large current, and at the same time, it brings great inconvenience to the installation

[0005] 3. The connection between the vertical busbar and the busbar (line) in the multi-function board of the drawer feeder cabinet MNS installed in the low-voltage power distribution cabinet (drawer feeder cabinet MNS of the low-voltage switchgear) must be in the cabinet behind the multi-function board. The middle position between the cabinet and the vertical busbar (line) is drawn from the middle position of each cabinet, and then the cabinets are connected to each other, leading to the top of the cabinet and the busbar (line) of the cabinet. Connection, because the capacitor of the capacitor cabinet is installed in the middle of the capacitor cabinet, it is blocked by the busbar (line) between the cabinet and the cabinet, which is not convenient for the maintenance and replacement of the capacitor

However, this kind of connecting copper bar is exposed, and it is easy to touch it accidentally, causing accidents. The artificially added transparent insulating board is not very beautiful.

[0006] 4. For the original low-voltage power distribution cabinet drawer feeder cabinet GCK (low-voltage switchgear drawer feeder cabinet GCK), although the connection between the drawer moving plug-in and the vertical busbar (line) is visible, the vertical busbar (line) is exposed. Although the transparent insulation board is artificially added, it is not very beautiful and is easy to be damaged when the outgoing cable is installed. The transparent insulation board

If people are not careful, it is easy to bump into it, which is easy to cause accidents. It is impossible to see from the outside whether the connecting parts of the drawer moving plug-in and the copper bar connector of the main circuit of the primary outlet of the cabinet are in good contact.

In actual use, accidents occur from time to time due to poor connection

[0007] 5. The secondary circuit plug-in of the cabinet drawer is installed on the upper part of the outgoing copper bar of the cabinet, which brings inconvenience to the maintenance and replacement of the secondary circuit

It affects the connection of the secondary line and also affects the appearance

[0009] 7. After using the drawer feeder cabinet GCK or MNS of the low-voltage distribution cabinet (the drawer feeder cabinet GCK or MNS of the low-voltage switchgear) for a period of time, due to the change of the production process, the customer needs to change the size and size of the cabinet drawer circuit. function, it is often necessary to power off the entire row of low-voltage power distribution cabinets (or low-voltage switchgear), and it takes a considerable amount of time to move the structure of the cabinet.

It is impossible to connect with copper bars. When encountering a high-current circuit breaker, the cables may have to be doubled or even tripled, which will cause inconvenience to the installation of transformers.

It is also inconvenient for one-time cable installation, especially for a 4-pole circuit breaker with three cables per phase, a total of 184 large cables are required to enter and exit the circuit breaker. For a narrow drawer, it is difficult to install these 24 large cables. Well, if you use it for a long time, the temperature rise is very problematic, and there are endless hidden dangers

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