CN217360122U

CN217360122U - Simple type circuit breaker simulating device

Info

Publication number: CN217360122U
Application number: CN202220921020.2U
Authority: CN
Inventors: 叶青
Original assignee: Huaneng Fujian Energy Development Co Ltd Fuzhou Branch
Current assignee: Huaneng Fujian Energy Development Co Ltd Fuzhou Branch
Priority date: 2022-04-20
Filing date: 2022-04-20
Publication date: 2022-09-02
Anticipated expiration: 2032-04-20

Abstract

The utility model relates to a simple and easy type analogue circuit breaker device belongs to the automatic technical field that overhauls of station service equipment, include: a relay set: the circuit breaker comprises three double-position relays which are connected in parallel and are used as analog circuit breakers; terminal row: the relay group is electrically connected with the relay and used for connecting and transmitting the electric signal; a socket group: the socket is electrically connected with the terminal strip and comprises four strip plugs for plugging to a socket of the spare power automatic switching device; installing and replacing a switch: and the terminal strip is electrically connected with the terminal strip and is used for performing man-machine interaction with the spare power automatic switching device. The utility model discloses the actual action result of on-the-spot switch has been restoreed, has reduced artificial analog signal, has effectively improved work efficiency.

Description

Simple type circuit breaker simulating device

Technical Field

The utility model relates to a simple and easy type analogue circuit breaker device belongs to the automatic technical field that overhauls of station service equipment.

Background

The automatic standby power switching device is a device capable of automatically, rapidly and accurately switching a standby power supply into an electric device or switching the electric device to the standby power supply when a circuit or the electric device fails. When the automatic switching device for the auxiliary power supply is checked, the automatic switching device is often limited by the limitation of field conditions, and the actual action can not be carried out on the field with a switch, and the specific change is as follows:

1. in the 400V bus automatic switching process, a working power switch, a standby power switch and a contact switch are often involved, and a large amount of electrical operation is often required for operators to realize the actual action of a field switch, so that a large amount of time and energy are consumed;

2. when the single test of the automatic bus transfer device is carried out, various signals need to be simulated manually, energy is consumed, the working efficiency is low, and due to the fact that no simulation breaker is arranged, great inconvenience is brought to the check of the automatic bus transfer device.

Therefore, improvements are urgently needed.

SUMMERY OF THE UTILITY MODEL

In order to overcome the shortcoming among the above-mentioned prior art, the utility model designs a simple and easy type simulation circuit breaker device, its actual action result that has restoreed the field switch has reduced artificial analog signal, has effectively improved work efficiency.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a simplified type analog circuit breaker apparatus comprising:

a relay set: the circuit breaker comprises three double-position relays which are connected in parallel and are used as analog circuit breakers;

terminal row: the relay group is electrically connected with the relay and used for connecting and transmitting the electric signal;

a socket group: the socket is electrically connected with the terminal strip and comprises four strip plugs for being plugged into a socket of the spare power automatic switching device to transmit electric signals;

installing and replacing a switch: and the terminal strip is electrically connected with the terminal strip and is used for performing man-machine interaction with the spare power automatic switching device.

Furthermore, a plurality of test contact pins arranged along the length direction are arranged at the top end of the terminal row and used for connecting a calibration instrument.

Furthermore, the replacing switch comprises a first changeover switch and a second changeover switch, the first changeover switch is used for selecting the functions of the spare power automatic switching device, and the second changeover switch is used for sending instructions to the spare power automatic switching device.

Furthermore, each two-position relay comprises two groups of coils and ten pairs of butt joints, and the ten pairs of butt joints comprise five pairs of normally open joints and five pairs of normally closed joints.

Compared with the prior art the utility model discloses there are following characteristics and beneficial effect:

1. the economic efficiency is as follows: through the setting of relay group, terminal row, row's of inserting group and dress change over switch, realize self-control analog circuit breaker, it is with low costs.

2. Authenticity: the relay group is used as a simulated circuit breaker, the actual secondary wiring of a field is designed and restored, the actual action result of the field switch can be restored to the maximum extent, and meanwhile, the accuracy and the authenticity of the check of the automatic bus transfer device are ensured.

3. Convenience: artificial analog signals are reduced, a calibration method is simplified, the time for calibrating the spare power automatic switching device is greatly saved, and the working efficiency is effectively improved.

4. The practicability is as follows: besides being applied to the check of the spare power automatic switching device, the automatic switching device can also be used for the check of a protection device and other automatic devices, and has stronger practicability.

Drawings

Fig. 1 is a schematic connection diagram of the present invention;

fig. 2 is a circuit connection diagram of the relay unit of the present invention;

FIG. 3 is an electrical diagram of a dual bus concealed backup power supply;

fig. 4 is an electrical diagram of a single bus standby power supply.

Wherein the reference numbers are: 1. a relay group; 2. a terminal block; 21. testing the contact pin; 3. a socket group; 4. and (6) installing and replacing a switch.

Detailed Description

The present invention will be described in more detail with reference to the following examples.

As shown in fig. 1 to 2, the simple type analog circuit breaker apparatus of the present embodiment includes:

a relay group 1: including three two position relay one that connect in parallel each other, two position relay and two position relay three, be used for as simulation circuit breaker, each two position relay all includes two sets of coils and ten butt joint, and ten butt joint include five to normally opening the contact and five to normally closed contact, two position relay one is as 1DL circuit breaker, two position relay two are as 2DL circuit breakers, three position relay is as 3DL circuit breakers, during the use, two sets of coils of each two position relay are as simulation circuit breaker's separating brake coil and combined floodgate coil respectively, ten butt joint are as simulation circuit breaker's auxiliary contact.

Terminal block 2: the relay unit is electrically connected with the relay unit 1 and is used for connecting and transmitting an electric signal;

socket group 3: the automatic switching device is electrically connected with the terminal strip 2 and comprises a first socket, a second socket, a third socket and a fourth socket, wherein the first socket, the second socket, the third socket and the fourth socket are used for being plugged into a socket of the automatic switching device to transmit electric signals, and the fourth socket is directly plugged into the socket of the automatic switching device, so that the requirement of one wiring is avoided, the connection time is effectively saved, the working efficiency is improved, and the automatic switching device and the relay group 1 are connected;

as shown in fig. 3, a first extension socket and a second extension socket are a group, and are used for a spare power automatic switching device configured by a double-bus hidden standby power supply, wherein the specific model is MPN-404BZT, when the spare power automatic switching device of the MPN-404BZT model is verified, the first extension socket and the second extension socket can be used for connecting the spare power automatic switching device with a relay group 1, the first extension socket is used for accessing the switching-on amount (a circuit breaker auxiliary contact, a transfer switch contact) of the spare power automatic switching device, and the second extension socket is used for accessing the switching-on amount (a tripping instruction and a closing instruction) of the spare power automatic switching device;

as shown in fig. 4, a group of three pins and four pins is used for a spare power automatic switching device configured with a single bus standby power supply, and the specific model of the spare power automatic switching device is MPN-405BZT, when the type of the MPN-405BZT is verified, the spare power automatic switching device can be connected with the relay group 1 by using the three pins and the four pins, wherein the three pins are used for accessing the input amount (auxiliary contacts of the circuit breaker and contacts of the transfer switch) of the spare power automatic switching device, and the four pins are used for accessing the input amount (tripping instruction and closing instruction) of the spare power automatic switching device;

and (4) installing and replacing the switch: and the terminal strip 2 is electrically connected with the terminal strip and is used for performing man-machine interaction with the spare power automatic switching device.

Further, the top end of the terminal row 2 is provided with a plurality of test pins 21 arranged along the length direction for connecting a calibration instrument, the calibration instrument can send a closing instruction and an opening instruction to the relay group 1, the test pins 21 can also receive the feedback of the auxiliary contact points for closing and opening of the relay group 1, and the test pins 21 can also be connected to other protection and automatic devices through test wires for other protection and automatic device calibration.

Further, the change-over switch 4 comprises a first change-over switch and a second change-over switch;

the first change-over switch is used for selecting the functions of the spare power automatic switching device, and can select automatic switching of the spare power automatic switching device, automatic exiting of the spare power automatic switching device, and allowing the 1DL switch to be switched on and the 2DL switch to be switched on to trip the 1DL switch or allowing the 1DL switch to be switched on and the 3DL switch to be switched on and the 2DL switch to be tripped.

The second change-over switch is used for sending instructions to the spare power automatic switching device, and is used for allowing the 1DL switch to be closed and the 2DL switch to be closed and the 1DL switch to be opened or allowing the 1DL switch to be closed and the 3DL switch to be closed and the 2DL switch to be opened and the 3DL switch to be opened.

The utility model discloses a theory of operation:

taking the check of the MPN-404BZT model spare power automatic switching device as an example, the method comprises the following steps:

step 1: inserting the socket group 3 into a socket of an MPN-404BZT spare power automatic switching device;

and 2, step: connecting the test lead to a checking instrument through a test pin 21 on the terminal strip 2;

and step 3: connecting a direct-current control power supply DC110V into a direct-current air switch, and closing the direct-current air switch;

and 4, step 4: a brake closing (opening) instruction is sent to the relay unit 1 through a test contact pin 21, so that the position of the relay unit 1 is consistent with the site working condition;

and 5: sending a switching permission signal to the spare power automatic switching device through the switch;

step 6: sending a switching instruction to the spare power automatic switching device through the switch;

and 7: the relay group 1 receives a switching instruction of the backup power automatic switching device to complete a switching action.

In the description of the present invention, it should be noted that the terms "inside", "outside", "upper", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the term "connected" is to be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

It is to be understood that the disclosed embodiments are merely exemplary of the invention, and are not intended to limit the invention to the precise embodiments disclosed. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Claims

1. The utility model provides a simple and easy type simulation circuit breaker device which characterized in that: the method comprises the following steps:

relay group (1): the circuit breaker comprises three double-position relays which are connected in parallel and are used as analog circuit breakers;

terminal block (2): the relay is electrically connected with the relay group (1) and is used for connecting and transmitting electric signals;

socket group (3): the terminal strip (2) is electrically connected with the terminal strip and comprises four strip plugs which are used for being plugged into a socket of the spare power automatic switching device to carry out electric signal transmission;

change-over switch (4): and the terminal strip (2) is electrically connected and is used for man-machine interaction with the spare power automatic switching device.

2. A simple type pseudo circuit breaker apparatus according to claim 1, wherein: the top end of the terminal row (2) is provided with a plurality of test pins (21) arranged along the length direction and used for connecting a checking instrument.

3. A simple type pseudo circuit breaker apparatus according to claim 1, wherein: the change-over switch (4) comprises a first change-over switch and a second change-over switch, the first change-over switch is used for selecting the function of the spare power automatic switching device, and the second change-over switch is used for sending an instruction to the spare power automatic switching device.

4. A simple type pseudo circuit breaker apparatus according to claim 1, wherein: each two-position relay comprises two groups of coils and ten pairs of butt joints, and the ten pairs of butt joints comprise five pairs of normally open joints and five pairs of normally closed joints.