CN201717543U - Improved switch cabinet - Google Patents

Abstract

The utility model discloses an improved switch cabinet, which comprises a switch cabinet body. The switch cabinet body includes a secondary room, a switch handcart room, a bus room and a cable room, and the bus room and the cable room are separated. set, and the busbar room is equipped with a busbar room door, and the cable room is equipped with a cable room door. It can be seen that the utility model abandons the rear sealing plate set on the back door of the switchgear commonly used in the prior art, which will switch the switchgear The cable room and the bus room are set separately, and the door of the cable room and the door of the bus room are separately equipped respectively. Therefore, only the door of the cable room is opened during the maintenance of the equipment in the cable room to eliminate the hidden danger of touching the live bus in the bus room. When the cabinet door needs to be opened urgently, the cabinet door can be opened in a short time.

Description

An improved switchgear

technical field

The utility model relates to a switch cabinet, in particular to a switch cabinet which improves the rear cabinet door of the existing ZSS-10 type switch cabinet. the

Background technique

The ZSS-10 handcart switchgear used in the 110kV Sihong and Sanli substations in our county consists of two parts: a fixed cabinet and a movable part (handcart for short). After nearly 8 years of use, we found that there were potential safety hazards in the original design of the switchgear. the

The ZSS-10 handcart switchgear used in the prior art includes a cabinet with an open rear and a rear sealing plate sealed with the rear open end of the cabinet, and the gap between the rear sealing plate and the cabinet is The room is fixed and installed with 12 screws, that is, the rear sealing plate is not the actual rear cabinet door, and the following problems exist during use:

(1) When the high-voltage equipment is overhauled, the rear sealing plate needs to be folded off. At this time, the busbars in the busbar room are still in the normal electrified running state. According to regulations, it is strictly forbidden to open the cabinet door during operation. Removing the rear sealing plate not only violates the regulations, but also poses a threat to the personal safety of the staff. the

(2) The operation of the grounding switch of the high-voltage switchgear is stipulated in the relevant regulations of the cable electric inspection problem: after confirming that the line has no voltage, close the grounding switch. Due to the closedness of the ZSS-10 high-voltage switchgear, the line The electrical inspection operation must be carried out after the switchgear is opened and sealed. Therefore, when the equipment is switched from operation to maintenance operation, the operating personnel cannot directly use the electric test pen to conduct electric test on the outgoing cable head. Therefore, the current way for operators to judge that the line side is not live before performing the grounding knife operation is that the handcart is in the test position or inspection position, and the indicator light of the line live display is not on. If these two conditions are met at the same time, it is considered that the line has no power, and the grounding switch can be closed. It can be seen that this method of indirect detection of the power status of the line has a relatively large potential safety hazard. If the live display is damaged, if the operation is carried out in this way, there may be a danger of charging and closing the grounding switch. In addition, this indirect electrical inspection method is only used for electrical inspection of 330kV and above electrical equipment. For 10kV electrical equipment, the electric test pen should be used to directly test the electricity, and the charged display can only be used as a suggestive measure. the

(3) It is difficult to remove the rear sealing plate installed with 12 screws for positioning. Three people are required to carry out the disassembly and assembly at the same time. For the current situation that only two people operate, the electric inspection and grounding operations are all indirect electric inspections. the

Utility model content

The utility model aims at the deficiencies of the prior art, and provides an improved switchgear, which separates the ZSS-10 type switchgear cable chamber and the busbar chamber which are integrally arranged in the prior art, and respectively correspondingly arranges them. The door of the cable room and the door of the busbar room, when the equipment in the cable room is being maintained, only needs to open the door of the cable room, which effectively eliminates the potential safety hazard caused by touching the live busbar in the busbar room. the

For realizing above technical purpose, the utility model will take following technical scheme:

An improved switchgear, comprising a switchgear body, the switchgear body comprising a secondary chamber, a switch handcart chamber, a busbar chamber and a cable chamber, the busbar chamber and the cable chamber are separately arranged, and the busbar chamber Equipped with a busbar compartment door, while the cable compartment is equipped with a cable compartment door. the

Further, one side of the cable room door is hinged to the cable room, and a mechanical lock is installed between the inner surface of the other side of the cable room door and the cable room, and the mechanical lock includes an unlocking pull rod 1. The base and the lock body used to install the unlocking pull rod, the base is installed on the inner surface of the cable room door, and the lock body is installed on the cable room, and the outer surface of the cable room door is equipped with an operating handle, which is passed through The lock core of five anti-electromagnetic locks is connected with the pull bar of unblanking. the

Further, the base is installed longitudinally on the door of the cable room, and the lock body is correspondingly installed on the bottom of the cable room. the

Further, the five-anti-electromagnetic lock is powered by an AC power supply, and the AC power circuit of the five-anti-electromagnetic lock is connected in series with a live display normally open switch. When the operating handle is in the shake-out position and the live display normally open switch is closed, The AC power circuit of the five-proof electromagnetic lock is connected. the

According to the above technical scheme, the following beneficial effects can be achieved:

(1) The rear sealing plate is discarded, the cable room and the busbar room of the switchgear are set separately, and the door of the cable room and the busbar room are separately equipped respectively. The hidden danger of the live bus in the bus room can be opened in a short time when the cabinet door needs to be opened urgently. the

(2) Add a five-proof electromagnetic lock between the cable room door and the operating handle. The power supply of the five-proof electromagnetic lock is powered by AC power supply, and the normally open switch of the live display is connected in series in its power circuit, that is, the door of the cable room can only be opened when the operating handle is in the shake-out position and the normally open switch of the live display is closed. Abandoning the previous operation method that could not be directly inspected, and preventing the possibility of closing the grounding switch with electricity, that is, the electrical inspection of the cable outlet in the cabinet can be performed directly, and the position of the grounding switch can be checked clearly and intuitively. At the same time It also prevents the misoperation of the electrified and grounded knife switch. the

(3) The locking of the door of the busbar room and the door of the cable room adopts mechanical locking, that is, the busbar door can only be opened when the grounding switch is in the closing position. In order to prevent the door of the busbar room from being opened under power, the door of the busbar room adopts a special electromagnetic lock. the

Description of drawings

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

Among them, the secondary room 1 switch handcart room 2 bus room 3 cable room 4. the

Detailed ways

The technical solution of the utility model will be described in detail below in conjunction with the accompanying drawings. the

As shown in Figure 1, the improved switchgear of the utility model includes a switchgear cabinet body, and the switchgear cabinet body includes a secondary chamber 1, a switch handcart chamber 2, a busbar chamber 3 and a cable chamber 4. The busbar room 3 and the cable room 4 are set separately, and the busbar room 3 is equipped with the busbar room 3 door, and the cable room 4 is equipped with the cable room 4 door, therefore, only the cable room 4 is opened when the equipment of the cable room 4 is overhauled. The door can eliminate the hidden danger of touching the live busbar in the busbar room 3. When the cabinet door needs to be opened urgently, the cabinet door can be opened in a short time. the

One side of the door of the cable room 4 is hinged to the cable room 4, and a mechanical lock is installed between the inner surface of the other side of the door of the cable room 4 and the cable room 4, and the mechanical lock includes unlocking Pull rod, the base for installing the unlocking pull rod and the lock body, the base is installed on the inner surface of the cable room 4 door, and the lock body is installed on the cable room 4, while the outer surface of the cable room 4 door is equipped with an operating handle, This operating handle is connected with the pull bar of unlocking by the lock core of five anti-electromagnetic locks, and in addition, the base of the utility model is vertically installed on the 4 doors of the cable chamber, and the lock body is correspondingly installed on the bottom of the cable chamber 4. The five-proof electromagnetic lock is powered by an AC power supply, and the AC power circuit of the five-proof electromagnetic lock is connected in series with a live display normally open switch. The AC power circuit of the lock is connected. Therefore, the utility model prevents the possibility of closing the grounding knife switch when it is charged, that is, it can directly test the electricity of the cable outlet in the cabinet, and can also clearly and intuitively check the position of the grounding knife switch. Misoperation of the gate. the

In addition, the locking of the third door of the busbar room and the fourth door of the cable room of the utility model adopts mechanical locking, that is, the busbar door can only be opened when the grounding knife switch is in the closing position. In order to prevent the 3 doors of the busbar room from being opened with electricity, the 3 doors of the busbar room adopt special electromagnetic locks. the

Claims (4)

1. an improved switch cubicle comprises switch cabinet body, and described switch cabinet body comprises secondary chamber, switch handcart chamber, bus-bar room and cable vault, it is characterized in that, described bus-bar room and cable vault's split are provided with, and bus-bar room is equipped with the bus-bar room door, and the cable vault then is equipped with cable vault's door.

2. according to the described improved switch cubicle of claim 1, it is characterized in that, be connected through the hinge between one side of described cable vault door and the cable vault, and mechanical lock is installed between the inner surface of another side of this cable vault's door and the cable vault, this mechanical lock comprises the pull bar of unblanking, be used to install the unblank base and the lock body of pull bar, described base is installed in the inner surface of cable vault's door, lock body then is installed in the cable vault, the outer surface of cable vault's door is equipped with operating grip simultaneously, and this operating grip is connected with the pull bar of unblanking by the lock core of five anti-electromagnetic locks.

3. according to the described improved switch cubicle of claim 2, it is characterized in that described base longitudinally is installed on cable vault's door, lock body then is installed in the bottom, cable vault accordingly.

4. according to the described improved switch cubicle of claim 2, it is characterized in that, described five anti-electromagnetic locks adopt ac power supply, and be connected in series with the electrification display normal open switch in the ac power supply circuit of these five anti-electromagnetic locks, when operating grip is shaking out position, electrification display normal open switch when closed, the ac power supply circuit of five anti-electromagnetic locks is connected.

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