CN210743152U - Offshore monitoring system for secondary power supply fault of medium-voltage switch cabinet - Google Patents
Offshore monitoring system for secondary power supply fault of medium-voltage switch cabinet Download PDFInfo
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- CN210743152U CN210743152U CN201922421002.9U CN201922421002U CN210743152U CN 210743152 U CN210743152 U CN 210743152U CN 201922421002 U CN201922421002 U CN 201922421002U CN 210743152 U CN210743152 U CN 210743152U
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- circuit breaker
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Abstract
A secondary power supply fault offshore monitoring system for a medium-voltage switch cabinet belongs to the technical field of medium-voltage switch cabinets. The utility model discloses a computer integrated protection ware and the circuit breaker that is used for medium voltage switchgear secondary power supply protection, circuit breaker are equipped with the fault alarm contact, and the fault alarm contact inserts computer integrated protection ware, and backstage monitored control system is connected in the computer integrated protection ware communication, and backstage monitored control system passes through the state of fault alarm contact real time monitoring circuit breaker. The utility model discloses an add the fault-alarm contact on the circuit breaker, the fault-alarm contact passes through the computer integrated protection ware and links to each other with backstage monitored control system, and when the circuit breaker broke down the tripping operation, backstage monitored control system accessible fault-alarm contact looked for the circuit breaker that broke down the tripping operation fast, and the maintenance personal of being convenient for eliminates trouble and hidden danger fast.
Description
Technical Field
The utility model belongs to the technical field of the medium voltage switchgear, specifically be relate to a secondary power source trouble offshore monitoring system of medium voltage switchgear.
Background
Along with the technical progress and the increasing demand of power supply and utilization quality, the requirements of users on the product performance and the function of the switch cabinet are higher and higher, and the energy utilization rate has more and more important influence on the competitiveness of enterprises. Since a power failure reduces production and causes a stoppage of certain functions, such as lighting, heating, elevators, etc., the electrical installation must be designed to minimize the loss of failure and adverse effects. The secondary power supply protection is used as a core source of a secondary control loop, and in order to ensure the operation reliability, the control loop design tends to be intelligent, and hidden dangers need to be found out and eliminated in time so as to ensure the safe and normal operation of the switch cabinet and improve the product performance of the switch cabinet.
The secondary power protection is generally protected by a fuse or a small circuit breaker. Because the circuit breaker can be switched on again after the fault tripping, and the circuit breaker does not need to be replaced, a small circuit breaker can be adopted as a secondary power supply for protection in the secondary circuit design of many switch cabinets. For a secondary power supply of a relatively complex and high-requirement medium-voltage switch cabinet, various control and signal power supplies are designed separately, each power utilization element is provided with a power supply branch separately, and the design can be used for a plurality of small circuit breakers. Due to the design of fault-free monitoring of the secondary loop, when a fault occurs, maintenance personnel cannot quickly find out the fault position, and the fault and the hidden danger cannot be eliminated quickly.
Disclosure of Invention
The utility model mainly solves the technical problem existing in the prior art and provides a secondary power failure offshore monitoring system for a medium-voltage switch cabinet.
The above technical problem of the present invention can be solved by the following technical solutions: the utility model provides a secondary power supply trouble offshore monitoring system of medium voltage switchgear, includes the circuit breaker that the protector was synthesized to the computer and was used for the protection of medium voltage switchgear secondary power supply, the circuit breaker is equipped with the fault alarm contact, the fault alarm contact inserts the protector is synthesized to the computer, backstage monitored control system is synthesized to the computer communication, backstage monitored control system passes through the state of fault alarm contact real time monitoring circuit breaker.
Preferably, the circuit breaker includes air switch 1DK1, air switch 1DK2, air switch 1DK3, air switch 1DK4, air switch 1DK5, air switch 1ZKK and air switch 1JK that have the fault alarm contact, air switch 1DK3 has two joints, computer integrated protection ware includes line protection measurement and control device 1n, line protection measurement and control device 1n is equipped with circuit breaker control power state end, instrument device power state end, circuit breaker energy storage control power state end and lighting power supply and alternating voltage state end according to the protection object of medium voltage switch cabinet secondary power supply, circuit breaker control power state end passes through air switch 1DK 1's fault alarm contact and one of them joint of air switch 1DK3 and links to each other, instrument device power state end passes through air switch 1DK 2's fault alarm contact respectively, The air switch 1DK 3's fault alarm contact and air switch 1DK 4's fault alarm contact link to each other with one of them joint of air switch 1DK3, the fault alarm contact that circuit breaker energy storage control power state end passes through air switch 1DK5 links to each other with one of them joint of air switch 1DK3, lighting source and alternating voltage state end link to each other with one of them joint of air switch 1DK3 through air switch 1 JK's fault alarm contact and air switch 1 ZKK's fault alarm contact respectively, line protection measurement and control device 1n still is equipped with the difference GPS who is connected with backstage monitoring system communication, two joints of air switch 1DK3 have connect the little generating line of direct current control.
The utility model discloses beneficial effect who has: the utility model discloses an add the fault-alarm contact on the circuit breaker, the fault-alarm contact passes through the computer integrated protection ware and links to each other with backstage monitored control system, and when the circuit breaker broke down the tripping operation, backstage monitored control system accessible fault-alarm contact looked for the circuit breaker that broke down the tripping operation fast, and the maintenance personal of being convenient for eliminates trouble and hidden danger fast.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural view of the air switch 1DK3 according to the present invention;
fig. 3 is a schematic structural diagram of the air switch 1JK of the present invention;
fig. 4 is a schematic structural diagram of the air switch 1ZKK of the present invention;
fig. 5 is a schematic structural diagram of the line protection measurement and control device 1n of the present invention.
In the figure: 1. a circuit breaker; 2. a fault alarm contact; 3. a microcomputer integrated protector; 4. a background monitoring system; 5. a line protection measurement and control device 1 n; 6. and D, controlling the small bus by direct current.
Detailed Description
The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.
Example (b): a secondary power supply fault offshore monitoring system of a medium-voltage switch cabinet is shown in figures 1-5 and comprises a microcomputer comprehensive protector and a circuit breaker used for secondary power supply protection of the medium-voltage switch cabinet, wherein the circuit breaker is provided with a fault alarm contact, the fault alarm contact is connected into the microcomputer comprehensive protector, the microcomputer comprehensive protector is in communication connection with a background monitoring system, and the background monitoring system monitors the state of the circuit breaker in real time through the fault alarm contact.
The circuit breaker comprises an air switch 1DK1, an air switch 1DK2, an air switch 1DK3, an air switch 1DK4, an air switch 1DK5, an air switch 1ZKK and an air switch 1JK, wherein the switch 1DK1, the air switch 1DK2, the air switch 1DK3, the air switch 1DK4 and the air switch 1DK5 are respectively provided with two connectors and fault alarm connection points, the types of the switch 1DK1, the air switch 1DK2, the air switch 1DK3, the air switch 1DK4 and the air switch 1DK5 are C65H-DC-B6A/2P +0F, the air switch 1JK is provided with two connectors and fault alarm connection points, the type is iC65N-B6A/2P +0F, the type of the air switch 1DK 1ZKK is provided with three connectors and the fault alarm connection points, and the type of the air switch 1DK 65N is iC 6-B6P +0F 3/6A.
The microcomputer integrated protector comprises a line protection measurement and control device 1n, the model of the line protection measurement and control device 1n is PSL641UX DC220V, a circuit breaker control power supply state end, an instrument device power supply state end, a circuit breaker energy storage control power supply state end, a lighting power supply and an alternating voltage state end are arranged on a protection object of a secondary power supply of a medium-voltage switch cabinet, the circuit breaker control power supply state end is connected with one of the joints of the air switch 1DK3 through a fault alarm contact of the air switch 1DK1, the instrument device power supply state end is connected with one of the joints of the air switch 1DK3 through the fault alarm contact of the air switch 1DK2, the fault alarm contact of the air switch 1DK3 and the fault alarm contact of the air switch 1DK4, the circuit breaker energy storage control power supply state end is connected with one of the joints of the air switch 1DK3 through the fault alarm contact of the air switch 1DK5, the lighting power supply and the alternating voltage state end are respectively connected with one joint of the air switch 1DK3 through a fault alarm contact of the air switch 1JK and a fault alarm contact of the air switch 1 ZKK.
The line protection measurement and control device 1n is further provided with a device power end, a public negative end and a differential GPS connected with a background monitoring system in a communication mode, the device power end and the public negative end are connected with the other joint of the air switch 1DK3, two joints of the air switch 1DK3 are connected with a small direct-current control bus, and the small direct-current control bus is connected with a small bus on the top of a medium-voltage switch cabinet.
When any one of the air switch 1DK1, the air switch 1DK2, the air switch 1DK3, the air switch 1DK4, the air switch 1DK5, the air switch 1ZKK and the air switch 1JK is tripped due to a fault, a fault alarm contact of the air switch acts, the line protection measurement and control device 1n receives information and transmits the information to the background monitoring system, the background monitoring system displays a protection object corresponding to the air switch, a maintenance worker can quickly search a fault reason according to the content displayed by the background monitoring system, and faults and hidden dangers are eliminated.
To sum up, the utility model discloses an add the fault-alarm contact on the circuit breaker, the fault-alarm contact passes through the computer integrated protection ware and links to each other with backstage monitored control system, and when the circuit breaker broke down the tripping operation, backstage monitored control system accessible fault-alarm contact looked for the circuit breaker that broke down the tripping operation fast, the maintenance personal of being convenient for eliminate trouble and hidden danger fast.
Finally, it should be noted that the above embodiments are merely representative examples of the present invention. Obviously, the present invention is not limited to the above-described embodiments, and many modifications are possible. Any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should be considered as belonging to the protection scope of the present invention.
Claims (2)
1. The offshore monitoring system for the secondary power supply fault of the medium-voltage switch cabinet comprises a microcomputer comprehensive protector and a circuit breaker used for protecting the secondary power supply of the medium-voltage switch cabinet, and is characterized in that the circuit breaker is provided with a fault alarm contact, the fault alarm contact is connected into the microcomputer comprehensive protector, the microcomputer comprehensive protector is in communication connection with a background monitoring system, and the background monitoring system monitors the state of the circuit breaker in real time through the fault alarm contact.
2. The secondary power supply failure offshore monitoring system of the medium voltage switchgear as claimed in claim 1, wherein the circuit breaker comprises an air switch 1DK1 having a failure alarm contact, an air switch 1DK2, an air switch 1DK3, an air switch 1DK4, an air switch 1DK5, an air switch 1ZKK, and an air switch 1JK, the air switch 1DK3 has two contacts, the microcomputer integrated protector comprises a line protection measurement and control device 1n, the line protection measurement and control device 1n is provided with a circuit breaker control power supply status terminal, an instrument device power supply status terminal, a circuit breaker energy storage control power supply status terminal, and a lighting power supply and ac voltage status terminal according to a protection object of the secondary power supply of the medium voltage switchgear, the circuit breaker control power supply status terminal is connected to one of the air switch 1DK3 through the failure alarm contact of the air switch 1DK1, the instrument power supply state end is connected with one of the joints of the air switch 1DK3 through a fault alarm contact of the air switch 1DK2, a fault alarm contact of the air switch 1DK3 and a fault alarm contact of the air switch 1DK4 respectively, the circuit breaker energy storage control power supply state end is connected with one of the joints of the air switch 1DK3 through a fault alarm contact of the air switch 1DK5, the lighting power supply and the alternating voltage state end are connected with one of the joints of the air switch 1DK3 through a fault alarm contact of the air switch 1JK and a fault alarm contact of the air switch 1ZKK respectively, the line protection measurement and control device 1n is further provided with a differential GPS connected with a background monitoring system in a communication mode, and two joints of the air switch 1DK3 are connected with a small direct current control bus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922421002.9U CN210743152U (en) | 2019-12-26 | 2019-12-26 | Offshore monitoring system for secondary power supply fault of medium-voltage switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922421002.9U CN210743152U (en) | 2019-12-26 | 2019-12-26 | Offshore monitoring system for secondary power supply fault of medium-voltage switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210743152U true CN210743152U (en) | 2020-06-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922421002.9U Active CN210743152U (en) | 2019-12-26 | 2019-12-26 | Offshore monitoring system for secondary power supply fault of medium-voltage switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210743152U (en) |
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2019
- 2019-12-26 CN CN201922421002.9U patent/CN210743152U/en active Active
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