CN214314222U - Switching drawer device for debugging high-temperature gas cooled reactor nuclear island low-voltage switch cabinet - Google Patents

Abstract

The utility model relates to a switching drawer device is used in debugging of high temperature gas cooled reactor nuclear island low-voltage switchgear, including switching drawer body, switching drawer body has preceding curb plate, posterior lateral plate, left side board, right side board, bottom plate, and the posterior lateral plate rear end is provided with secondary contact pin and secondary binding post, and the two electricity is connected, and secondary binding post is used for connecting the one end of secondary lead wire, and secondary socket is connected to the other end of secondary lead wire, and secondary socket is used for and treats experimental drawer plug connection. The tester can carry out operations such as fault simulation on elements such as a thermal relay, a contactor and the like very intuitively, conveniently and accurately, so that the condition that the drawer to be tested is not limited to carry out debugging tests such as fault simulation, protection verification, switch transmission and the like on the elements such as the thermal relay and the like is not limited to the condition that the drawer is pushed into the switch cabinet any more.

Description

Switching drawer device for debugging high-temperature gas cooled reactor nuclear island low-voltage switch cabinet

Technical Field

The utility model belongs to the technical field of electrician's electrical, concretely relates to switching drawer device is used in debugging of high temperature gas cooled reactor nuclear island low-voltage switch cabinet.

Background

The low-voltage switch cabinet is suitable for a 380V rated voltage and AC three-phase four-wire and three-phase five-wire system, and is used for centralized control of loads such as power receiving, power feeding and motors of a power plant.

The nuclear island low-voltage switch cabinet of the high-temperature gas cooled reactor is divided into a safety-level MZS type low-voltage switch cabinet and a non-safety-level GCS type low-voltage switch cabinet, the nuclear island low-voltage switch cabinet is divided into three mutually isolated sections of a functional unit chamber, a bus chamber and a cable outlet chamber according to regional functions, the functional unit chamber is a drawer switch part, a drawer switch is mainly installed, and the nuclear island low-voltage switch cabinet is generally divided into 1/2 units, 1 unit, 2 units, 3 units, 4 units, 5 units and other drawer units according to the drawer unit height modulus of 160 mm. And components such as a circuit breaker, a contactor, a thermal relay and the like are arranged in each drawer unit according to design requirements. The same drawer units are easily interchangeable. The main loop and the auxiliary loop of the drawer are connected and conducted through a primary connector and a secondary connector at the rear part of the drawer and special primary and secondary sockets on the cabinet body, so as to achieve the power supply function.

According to the GB 50150-2016 electrical device installation engineering electrical equipment handover test standard and the sixth debugging engineering specification of the electric power construction engineering budget quota, the contactors, the thermal relays and other protection units of the low-voltage switch cabinet need to be debugged and checked, the fault action of the thermal relays and other protection components needs to be realized by manually pressing fault buttons, but because the contactors, the thermal relays and other components are all installed inside the low-voltage drawer unit of the low-voltage switch cabinet, the space is narrow, the arrangement is staggered and compact, and because of the manufacturing structural characteristics of the switch cabinet, the front panel of the drawer cannot be opened, so that after the drawer is pushed into the switch cabinet, the front panel of the drawer cannot be opened under the condition that a drawer secondary circuit is connected with a control power supply and is electrified, and because the drawer is pushed into the switch cabinet, the thermal relays are arranged at the rear positions in the drawer, the thermal relay action cannot be simulated by manually pressing the fault buttons, therefore, the function of tripping of the contactor due to control power loss after the action of the thermal relay cannot be verified, namely, the protection verification, switch transmission and other debugging tests cannot be carried out by pressing a fault button of related components of the thermal relay and other methods.

Therefore, how to conveniently debug the drawer switch is a technical problem to be solved in the field.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a switching drawer device is used in debugging of high temperature gas cooled reactor nuclear island low-voltage switchgear, and the debugging personnel of being convenient for carry out debugging test to the cubical switchboard, can improve work efficiency, and operate safety.

For the high temperature gas cooled reactor nuclear island low-voltage switchgear drawer in solving the background art in protect components and parts can't carry out debugging test's problem under the drawer pushes away the state, the utility model provides a following technical scheme:

the utility model provides a switching drawer device for debugging of nuclear island low-voltage switch cabinet is piled to high temperature gas cooling, the device includes switching drawer body, and switching drawer body has preceding curb plate, posterior lateral plate, left side board, right side board, bottom plate, and the posterior lateral plate rear end is provided with secondary contact pin and secondary binding post, and the two electricity is connected, and secondary binding post is used for connecting the one end of secondary lead wire, and secondary socket is connected to the other end of secondary lead wire, and secondary socket is used for with treating experimental drawer plug connection.

Further, secondary contact pin and secondary binding post are integrative to be set up.

Furthermore, the secondary contact pin is perpendicular to the rear side plate and faces outwards.

Furthermore, a hole is formed in the front side plate of the switching drawer body, and a secondary lead can penetrate through the hole.

Furthermore, the switching drawer body is made of insulating materials.

Further, the insulating material is plastic.

Further, the switching drawer device also comprises a push-pull handle.

Further, the utility model discloses low-voltage switch cabinet switching drawer, switching drawer overall dimension, model are unanimous with the cubical switchboard drawer, but inside no components and parts, only secondary connector and lead wire socket.

Furthermore, the secondary wiring terminal is a plurality of, and the jack of secondary socket is a plurality of.

During testing, the adapter drawer is pushed into the switch cabinet, the adapter drawer secondary plug is inserted into the drawer internal secondary socket, and the lead socket of the adapter drawer (of the same type as the drawer internal secondary socket to be tested) is connected with the drawer secondary plug to be tested, so that the secondary circuit of the drawer to be tested is connected with the switch cabinet body secondary circuit, the drawer control circuit to be tested, which is placed outside the switch cabinet, is electrified, and debugging tests such as protection checking, switch transmission and the like are facilitated.

The utility model has the advantages that:

through the switching drawer, the drawer to be tested outside the switch cabinet realizes the connection of a secondary plug and a secondary socket of the switch cabinet, and because the drawer to be tested is outside the switch cabinet, a tester can very intuitively, conveniently and accurately carry out operations such as fault simulation on elements such as a thermal relay and a contactor, so that the drawer to be tested is not limited by conditions which can be carried out by pushing the drawer into the switch cabinet any more during the fault simulation, protection verification, switch transmission and other debugging tests of the elements such as the thermal relay and the like. And the switching drawer only connects the secondary loop, thereby ensuring the disconnection of the primary loop and ensuring the safety of the debugging test.

Drawings

Fig. 1 is a schematic view of the adapting drawer of the present invention.

Fig. 2 is a flow chart of the work flow of the switching drawer of the present invention when the switch cabinet is debugged.

Reference numerals: 1. secondary pin inserting; 2. A secondary wiring terminal; 3. A secondary lead; 4. A secondary socket; 5. The switching drawer body;

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The following description of the embodiments is made with reference to the accompanying drawings 1 and 2:

as described in the background, the drawer switch is divided into a plurality of drawer units, and the details are described below by taking the unit drawer of the nuclear island non-safety low-voltage switch cabinet 1 as an example.

The utility model provides a switching drawer device that nuclear island low-voltage switchgear debugging test used is piled to high temperature gas cooling, this switching drawer outward appearance size, the model is unanimous with 1 unit drawer of above-mentioned low-voltage switchgear, the inside no components and parts of drawer, this switching drawer device is including switching drawer body 5, the push-and-pull handle, switching drawer body 5 has the preceding curb plate, the posterior lateral plate, the left side board, the right side board, the bottom plate, 5 posterior lateral plates of switching drawer body are provided with secondary contact pin 1 and secondary binding post 2, the two electricity is connected, secondary binding post 2 is used for connecting the one end of secondary lead wire 3, secondary socket 4 is connected to the other end of secondary lead wire 3.

Preferably, secondary contact pin 1 and secondary binding post 2 are integrative to be set up, and the perpendicular posterior lateral plate of secondary contact pin 1 is outwards.

Preferably, the front end of the adapting drawer body 5 is provided with a hole for the secondary lead 3 to pass through.

Preferably, the adapter drawer body 5 is made of an insulating material.

Preferably, the insulating material is plastic.

Before debugging, the drawer to be tested is arranged outside the switch cabinet, 4 lead wires of the secondary socket of the switching drawer of the unit of the non-safety level 1 are connected to a secondary plug of the drawer to be tested, then the switching drawer of the unit of the non-safety level 1 is pushed into the switch cabinet, a secondary circuit is connected, a contactor is closed, a thermal relay fault button in the drawer to be tested is manually pressed, the action of a thermal relay is simulated, and the contactor trips, so that the thermal relay fault circuit verification can be completed.

The utility model is used for high temperature gas cooled piles the concrete using-way of switching drawer device of nuclear island low-voltage switchgear debugging test usefulness:

1) selecting a switching drawer with the same model as the drawer to be tested;

2) the drawer to be tested is pulled out of the low-voltage switch cabinet and is arranged outside the switch cabinet;

3) reliably connecting the adapter drawer secondary lead socket with a drawer secondary plug to be tested;

4) pushing the adapter drawer into a drawer cabin of the switch cabinet, reliably connecting a secondary lead plug of the adapter drawer with a secondary socket in the switch cabinet, checking whether the drawer to be tested is on or not, and controlling a power indicator to be on to confirm that a secondary loop of the drawer to be tested is connected;

5) and carrying out fault simulation, protection verification and switch transmission test on related elements such as a thermal relay, a contactor and the like.

It should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.

Claims (10)

1. The utility model provides a switching drawer device for debugging of high temperature gas cooled reactor nuclear island low-voltage switch cabinet which characterized in that: the device includes switching drawer body, and switching drawer body has preceding curb plate, posterior lateral plate, left side board, right side board, bottom plate, and the posterior lateral plate rear end is provided with secondary contact pin and secondary binding post, and the two electricity is connected, and secondary binding post is used for connecting the one end of secondary lead wire, and secondary socket is connected to the other end of secondary lead wire, and secondary socket is used for with waiting to test drawer plug connection.

2. The adaptor drawer device of claim 1, wherein: the secondary contact pin and the secondary wiring terminal are integrally arranged.

3. The adaptor drawer device of claim 1, wherein: the secondary pin is perpendicular to the rear side plate and faces outwards.

4. The adaptor drawer device of claim 1, wherein: the front side plate of the switching drawer body is provided with a hole for the secondary lead to pass through.

5. The adaptor drawer device of claim 1, wherein: the switching drawer body (5) is made of insulating materials.

6. The adapted drawer arrangement of claim 5, wherein: the insulating material is plastic.

7. The adapted drawer arrangement of claim 6, wherein: the adapting drawer device also comprises a push-pull handle.

8. The adaptor drawer device of claim 7, wherein: the switching drawer has the same appearance size and model with the drawer of the switch cabinet to be tested, and has no components inside.

9. The transitioning drawer apparatus of any of claims 1-8, wherein: the secondary binding post is a plurality of.

10. The adapted drawer arrangement of claim 9, wherein: the secondary socket has a plurality of jacks.

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