CN211981565U - Dual-power redundancy equipment - Google Patents
Dual-power redundancy equipment Download PDFInfo
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- CN211981565U CN211981565U CN202020782608.5U CN202020782608U CN211981565U CN 211981565 U CN211981565 U CN 211981565U CN 202020782608 U CN202020782608 U CN 202020782608U CN 211981565 U CN211981565 U CN 211981565U
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- power supply
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- switch normally
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
Abstract
The utility model relates to a dual supply redundancy equipment, its structure is symmetrical double loop parallel connection DDC power of first UPS power and second UPS power through the contact switch that has switching state mutually independent. The utility model has the advantages that: (1) the dual power supplies supply, after one power supply fails, the other power supply serves as a standby power supply, so that normal power supply of the control loop is guaranteed, and the reliability of the power supplies is greatly improved; (2) the power supply double-loop design does not influence the normal power supply of the control circuit when one point fails; (3) when one of the two power supplies fails, the other power supply is automatically switched to; (4) the two power supplies are mutually standby, when one power supply supplies power, the other power supply is in a non-power supply state, and the service life of the power supplies is prolonged.
Description
Technical Field
The utility model relates to a dual-power redundancy equipment, concretely relates to dual-power redundancy power supply control system device belongs to controller power supply technical field.
Background
In the power supply system, some emergency loads and important loads, such as fire-fighting electric equipment, communication equipment, management systems and the like, if power is suddenly cut off in the using process, losses and influences are caused to different degrees in economic, and even more serious adverse consequences such as personal safety accidents can be caused.
The automatic change-over switch in the dual power supply system can automatically switch the load circuit from one path of fault power supply to the other path of normal power supply, and the normal operation of the power supply system is safely and reliably ensured. Therefore, with the development of economy and the continuous improvement of the industrial automation degree in China, the dual-power redundancy device is widely applied to various important occasions such as an automatic system, an industrial power supply system, a data center, a remote communication center, building automation, a safety system and the like in the power industry.
However, the dual-power redundancy equipment in the prior art still has some problems, such as insufficient safety and stability, complex structure, high input cost, complex post-maintenance and the like.
SUMMERY OF THE UTILITY MODEL
The utility model provides a dual supply redundancy equipment, its purpose aim at be the DDC controller power supply through two way UPS power supply units, realize two way power automatic switch-over, but a power automatic switch-over is to another mains operated because the trouble has a power failure after, and guarantee server, production facility stabilize safe operation, simplify structure and later maintenance, reduce cost.
The technical solution of the utility model is as follows: a dual power redundancy apparatus is configured such that a first UPS and a second UPS are connected in parallel to a DDC power supply through symmetrical dual loops having contact switches whose open and closed states are independent of each other.
Preferably, a first intermediate relay 1KA and a first contactor 1KM are respectively arranged in parallel on a loop between the first UPS power supply and the DDC power supply, and a second intermediate relay 2KA and a second contactor 2KM are respectively arranged in parallel on a loop between the second UPS power supply and the DDC power supply.
Preferably, a 1KA switch normally open contact and a 2KM switch normally closed contact are arranged on a load loop between a loop between the first contactor 1KM and the first UPS power supply and the DDC power supply, two ends of the 1KA switch normally open contact are connected in parallel with the 2KA switch normally closed contact, and a 1KM switch normally open contact is further arranged on the loop between the first UPS power supply and the DDC power supply; and a 1KA switch normally closed contact and a 1KM switch normally closed contact are arranged on a load loop between the second contactor 2KM and the loop between the second UPS power supply and the DDC power supply, 2KA switch normally open contacts are connected at two ends of the 1KA switch normally closed contact in parallel, and a 2KM switch normally open contact is further arranged on the loop between the second UPS power supply and the DDC power supply.
The utility model has the advantages that: (1) the dual power supplies supply, after one power supply fails, the other power supply serves as a standby power supply, so that normal power supply of the control loop is guaranteed, and the reliability of the power supplies is greatly improved;
(2) the power supply double-loop design does not influence the normal power supply of the control circuit when one point fails;
(3) when one of the two power supplies fails, the other power supply is automatically switched to;
(4) the two power supplies are mutually standby, when one power supply supplies power, the other power supply is in a non-power supply state, and the service life of the power supplies is prolonged.
Drawings
Fig. 1 is a schematic diagram of a dual power supply redundancy device of the present invention.
Detailed Description
The present invention will be described in further detail with reference to examples and embodiments.
As shown in fig. 1, a dual power redundancy apparatus has a structure in which a first UPS power supply 1 and a second UPS power supply 2 are connected in parallel to a DDC power supply through symmetrical double loops with contact switches whose open and closed states are independent of each other.
The direct-current power supply system is characterized in that a first intermediate relay 1KA and a first contactor 1KM are respectively arranged on a loop between a first UPS power supply 1 and a DDC power supply in parallel, and a second intermediate relay 2KA and a second contactor 2KM are respectively arranged on a loop between a second UPS power supply 2 and the DDC power supply in parallel.
A 1KA switch normally open contact and a 2KM switch normally closed contact are arranged on a load loop between a loop between the first contactor 1KM and the first UPS power supply 1 and the DDC power supply, 2KA switch normally closed contacts are connected at two ends of the 1KA switch normally open contact in parallel, and a 1KM switch normally open contact is further arranged on the loop between the first UPS power supply 1 and the DDC power supply; and a 1KA switch normally closed contact and a 1KM switch normally closed contact are arranged on a load loop between the second contactor 2KM and the loop between the second UPS power supply 2 and the DDC power supply, two ends of the 1KA switch normally closed contact are connected with a 2KA switch normally open contact in parallel, and a 2KM switch normally open contact is further arranged on the loop between the second UPS power supply 2 and the DDC power supply.
According to the structure, when in work, the two UPS power supply devices supply power to the DDC controller, the two power supplies are automatically switched, one power supply is automatically switched to the other power supply to supply power after power failure due to failure, in particular,
(1) when first UPS power 1 circular telegram earlier, first auxiliary relay 1KA actuation, 1KA switch normally open contact is closed, 2KM switch normally closed contact keeps closed, first contactor 1KM circular telegram switches on, 1KM switch normally open contact actuation, second UPS power 2 circular telegram back this moment, although second auxiliary relay 2KA actuation, but in the load return circuit 1KM switch normally closed contact becomes normally open contact, second contactor 2KM does not switch on, 2KM switch normally open contact still is normally open state, the DDC power is by supplying power when first UPS power 1 this moment, second UPS power 2 is reserve.
(2) When second UPS power 2 circular telegram earlier, the actuation of second auxiliary relay 2KA, 2KA switch normally open contact is closed, 1KM switch normally closed contact keeps closed, the circular telegram of second contactor 2KM switches on, the actuation of 2KM switch normally open contact, first UPS power 1 circular telegram back this moment, although first auxiliary relay 1KA actuation, but switch 2KM normally closed contact becomes normally open contact in load return circuit, first contactor 1KM does not switch on, 1KM switch normally open contact still is normally open state, the DDC power is supplied power by second UPS power 2 this moment, first UPS power 1 is reserve.
(3) When the first UPS power supply 1 breaks down, the first contactor 1KM is powered off, the load loop 1KM switch normally closed contact of the second UPS power supply 2 is conducted, the second contactor 2KM is electrified and pulled in, the 2KM switch normally open contact is switched to be in a closed state, and the system is powered by the second UPS power supply 2 at the moment.
(4) When the second UPS power supply 2 breaks down, the second contactor 2KM is powered off, the load loop 2KM switch normally-closed contact of the first UPS power supply 1 is conducted, the first contactor 1KM is electrified and pulled in, the 1KM switch normally-open contact is switched to be in a closed state, and the system is powered by the first UPS power supply 1 at the moment.
All the above components are prior art, and those skilled in the art can use any model and existing design that can implement their corresponding functions.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many modifications and improvements can be made without departing from the inventive concept, and all of them belong to the protection scope of the present invention.
Claims (3)
1. A dual-power redundancy device is characterized in that a first UPS power supply and a second UPS power supply are connected in parallel with a DDC power supply through symmetrical double loops with contact switches with mutually independent opening and closing states.
2. The dual-power redundancy apparatus of claim 1, wherein a first intermediate relay 1KA and a first contactor 1KM are respectively disposed in parallel on the loop between the first UPS power source and the DDC power source, and a second intermediate relay 2KA and a second contactor 2KM are respectively disposed in parallel on the loop between the second UPS power source and the DDC power source.
3. The dual-power redundancy device of claim 2, wherein a 1KA switch normally open contact and a 2KM switch normally closed contact are arranged on a load loop between the first contactor 1KM and the loop between the first UPS power supply and the DDC power supply, a 2KA switch normally closed contact is connected in parallel to two ends of the 1KA switch normally open contact, and a 1KM switch normally open contact is further arranged on the loop between the first UPS power supply and the DDC power supply; and a 1KA switch normally closed contact and a 1KM switch normally closed contact are arranged on a load loop between the second contactor 2KM and the loop between the second UPS power supply and the DDC power supply, 2KA switch normally open contacts are connected at two ends of the 1KA switch normally closed contact in parallel, and a 2KM switch normally open contact is further arranged on the loop between the second UPS power supply and the DDC power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020782608.5U CN211981565U (en) | 2020-05-13 | 2020-05-13 | Dual-power redundancy equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020782608.5U CN211981565U (en) | 2020-05-13 | 2020-05-13 | Dual-power redundancy equipment |
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| Publication Number | Publication Date |
|---|---|
| CN211981565U true CN211981565U (en) | 2020-11-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020782608.5U Active CN211981565U (en) | 2020-05-13 | 2020-05-13 | Dual-power redundancy equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211981565U (en) |
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2020
- 2020-05-13 CN CN202020782608.5U patent/CN211981565U/en active Active
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