CN204243586U - A kind of armored removable closed switchgear - Google Patents

Abstract

The utility model discloses a kind of armored withdraw type closed switch cabinet, comprise circuit breaker cart room, relay control room, bus-bar room, cable vault and pressure release exhaust passage, main bus bar is respectively equipped with in described bus-bar room, static contact head device, arc light protection system summation current transformer, described arc light protection system is located at the below of electrostatic contact apparatus, inside, described cable vault is respectively equipped with earthed switch, lightning arrester, cable and anti-explosion groove box, the right side of cable is located at by described anti-explosion groove box, the right side of described cable vault is provided with cooling pipe group, described circuit breaker cart indoor are provided with circuit breaker cart, heater and secondary plug, the top of described circuit breaker driver room is provided with relay control room, the inside of described relay control room is provided with rear reflector, described pressure release exhaust passage is positioned at the top of whole switch cubicle.The utility model improves the self-protection ability of switch cubicle, effectively carries out system cooling simultaneously, improves switch cubicle integral protection grade.

Description

A kind of armored removable closed switchgear

technical field

The utility model relates to a power supply and distribution equipment, in particular to an armored removable closed switch cabinet.

Background technique

In recent years, with the rapid growth of the national economy, the development of the power grid has also ushered in new historical opportunities. The 10-50KV AC metal-enclosed armored removable switchgear (hereinafter referred to as the switchgear) has a compact and reasonable structure, good protection performance, The advantages of reliable interlocking function, convenient maintenance, simple operation, and high operational reliability have been widely used in power systems. However, in practical applications, some shortcomings of the switchgear itself also appear, such as the switchgear is prone to overheating, lack of practical safety trip circuits and imperfect explosion-proof measures, etc., and these problems are often easily overlooked, resulting in irreparable damage loss.

For this reason, it is imperative to improve the process of the switchgear without adjusting the frame structure of the switchgear, so that it can better serve the society and reduce unnecessary personal and property losses.

Utility model content

The purpose of this utility model is to provide an armored removable closed switchgear to solve the problems raised in the above-mentioned background technology.

In order to achieve the above object, the utility model provides the following technical solutions:

An armored removable closed switchgear, including a circuit breaker handcart room, a relay instrument room, a busbar room, a cable room and a pressure relief exhaust channel, the busbar room is respectively equipped with a main busbar, a static contact device, an arc A light protection system and a current transformer, the main busbar is provided with a busbar casing around the main busbar, the main busbar is connected to the static contact device through a branch line, the arc light protection system is arranged under the static contact device, and the cable The interior of the room is equipped with a grounding switch, lightning arrester, cable and explosion-proof box respectively, and the grounding switch is respectively connected with the grounding end of the lightning arrester, cable and current transformer. The right side of the room is provided with a cooling tube group, and the circuit breaker handcart room is equipped with a circuit breaker handcart, a heating device and a secondary plug. Reflective glass is provided inside, and the pressure relief and exhaust channel is located above the entire device, and is respectively connected to the busbar room, cable room, circuit breaker handcart room and relay instrument room.

As a further solution of the utility model: the cooling tube group is a dry cooling device.

As a further solution of the present invention: the current transformer adopts a core-through structure current mutual induction device.

Compared with the prior art, the beneficial effect of the utility model is: through the safety protection of the arc light protection system and the laying of multiple cooling pipes, the whole switchgear can be well warned, and at the same time, the explosion-proof measures and the process improvement of the current transformer It can pave the way for efficient and safe production concepts, enhance the core value of products, and reduce unnecessary personal and property losses.

Description of drawings

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

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Fig. 1, in the embodiment of the utility model, an armored removable closed switch cabinet includes a cooling tube group 1, a circuit breaker handcart 2, a heating device 3, a circuit breaker handcart room 4, and a secondary plug 5 , reflective glass 6, relay instrument room 7, static contact device 8, arc protection system 9, pressure relief and exhaust passage 10, busbar room 11, main busbar 12, busbar bushing 13, current transformer 14, grounding switch 15 , lightning arrester 16, grounding main busbar 17, cable 18, cable chamber 19 and explosion-proof tank box 20, the main busbar 12, static contact device 8, arc light protection system 9 and current transformer 14 are respectively arranged in the said busbar chamber 11 , the periphery of the main bus 12 is provided with a bus bushing 13, the main bus 12 is connected to the static contact device 8 through a branch line, the arc protection system 9 is arranged below the static contact device 8, and the arc light The protection system 9 will issue a trip command only when it detects the arc and overcurrent of the electrostatic contact device 8 at the same time. The action time provided by the arc protection system 9 is 5-7ms, which is much faster than the traditional busbar protection scheme and can be effectively To shorten the fault elimination time, the current transformer 14 adopts a core-through structure current mutual induction device to improve the phenomenon of poor heat dissipation of the traditional primary winding and iron core.

The inside of the cable chamber 19 is respectively provided with a grounding switch 15, a lightning arrester 16, a cable 18 and an explosion-proof slot box 20, and the grounding switch 15 is connected with the grounding terminals of the lightning arrester 16, the cable 18 and the current transformer 14 respectively to provide grounding. Protective device, the explosion-proof groove box 20 is located on the right side of the cable 18, the explosion-proof groove box 20 can provide the necessary explosion-proof protection when the cable 18 is densely laid, so as to reduce unnecessary property loss, the cable room 19 The right side is provided with cooling tube group 1, and described cooling tube group 1 is a dry cooling device, which can prevent indoor moisture problems from causing circuit aging, and can also provide a stable environment for the entire cable room 19.

The circuit breaker handcart room 4 is provided with a circuit breaker handcart 2, a heating device 3 and a secondary plug 5, and a relay meter room 7 is arranged above the circuit breaker driver room 4, and the inside of the relay meter room 7 Reflective glass 6 is provided to reduce the thermal effect of direct sunlight, especially in summer when the indoor temperature is high, and the heat emitted by the switchgear itself is relatively large. Reflective glass 6 can replace the traditional exhaust fan. Reduce the external heat absorbed by the switchgear.

The pressure relief exhaust passage 10 is located above the entire switchgear, and is respectively connected to the busbar chamber 11, the cable chamber 19, the circuit breaker handcart chamber 4 and the relay instrument chamber 7. The pressure relief exhaust passage 10 can be connected to the The entire switchgear is cooled and dissipated, and at the same time, the switchgear can be dust-removed for real-time protection.

The working principle of the utility model is: the arc light protection system 9 uses arc light sensors as light sensing elements and is distributed and installed in the switch interval. The signal is converted into a current signal to act on the power circuit breaker (not shown in the figure), and the switchgear is protected in real time. At the same time, the cooling tube group 1 and the pressure relief exhaust channel 10 are used to cool down and remove dust for the equipment, which is explosion-proof. The arrangement of the tank box 20 and the core-type current transformer 14 can improve the safety factor of the switchgear from the source.

It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, no matter from all points of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, so it is intended to fall within the scope of the claims All changes within the meaning and range of equivalents of the required elements are included in the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned. the

In addition, it should be understood that although this specification is described according to implementation modes, not each implementation mode only contains an independent technical solution, and this description in the specification is only for clarity, and those skilled in the art should take the specification as a whole , the technical solutions in the various embodiments can also be properly combined to form other implementations that can be understood by those skilled in the art.

Claims (3)

1. an armored withdraw type closed switch cabinet, comprise circuit breaker cart room, relay control room, bus-bar room, cable vault and pressure release exhaust passage, it is characterized in that, main bus bar is respectively equipped with in described bus-bar room, static contact head device, arc light protection system summation current transformer, bus casing is arranged with outside described main bus bar, main bus bar is connected on static contact head device by branch line, described arc light protection system is located at the below of electrostatic contact apparatus, inside, described cable vault is respectively equipped with earthed switch, lightning arrester, cable and anti-explosion groove box, described earthed switch respectively with lightning arrester, the earth terminal of cable summation current transformer is connected, the right side of cable is located at by described anti-explosion groove box, the right side of described cable vault is provided with cooling pipe group, described circuit breaker cart indoor are provided with circuit breaker cart, heater and secondary plug, the top of described circuit breaker driver room is provided with relay control room, the inside of described relay control room is provided with rear reflector, described pressure release exhaust passage is positioned at the top of whole device, respectively with bus-bar room, cable vault, circuit breaker cart room is connected with the conducting of relay control room.

2. armored withdraw type closed switch cabinet according to claim 1, is characterized in that, described cooling Guan Zuwei drying type heat sink.

3. armored withdraw type closed switch cabinet according to claim 1, is characterized in that, described current transformer adopts core-theaded type structure current mutual-inductance apparatus.