CN111327106A - Dual-power automatic switching power supply system - Google Patents
Dual-power automatic switching power supply system Download PDFInfo
- Publication number
- CN111327106A CN111327106A CN202010121552.3A CN202010121552A CN111327106A CN 111327106 A CN111327106 A CN 111327106A CN 202010121552 A CN202010121552 A CN 202010121552A CN 111327106 A CN111327106 A CN 111327106A
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- Prior art keywords
- power supply
- power
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- transformer
- key equipment
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/066—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems characterised by the use of dynamo-electric machines
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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
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- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Stand-By Power Supply Arrangements (AREA)
Abstract
The invention provides a double-power-supply automatic switching power supply system, which comprises a high-voltage-side power supply line and a low-voltage-side power supply line, wherein the low-voltage-side power supply line comprises a company power load line and a key equipment power load line, and the company power load line is connected with the high-voltage-side power supply line through a transformer; the power utilization load circuit of the company is connected to the transformer through the change-over switch, and the change-over switch is also connected with the standby generator; after detecting the transformer power-off signal, the change-over switch controls the generator to start to supply power to the power utilization load circuit of the key equipment; the current situation that the key equipment cannot be quickly switched to the standby motor line in the power-off state is improved.
Description
Technical Field
The invention relates to the technical field of power supply, in particular to a dual-power automatic switching power supply system.
Background
The electricity consumption of key equipment used in the bio-pharmaceutical enterprise needs to be supplied continuously to ensure the normal operation of the key equipment, and at present, the electricity consumption of the key equipment is mainly ensured by the power supply of a special high-voltage line and provides electricity for the whole enterprise; need artifical start-up stand-by motor to guarantee key equipment power consumption after being in the power failure state, but whole process reaction rate is slower to can not satisfy quick response's requirement, lead to easily appearing losing the electric fault in the key equipment use.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a dual-power automatic switching power supply system, which solves the problem that key equipment cannot be quickly switched to a standby motor circuit in a power-off state.
In order to achieve the purpose, the invention adopts the following technical scheme:
a dual-power automatic switching power supply system comprises a high-voltage side power supply line and a low-voltage side power supply line, wherein the low-voltage side power supply line comprises a company power load line and a key equipment power load line, and the company power load line is connected with the high-voltage side power supply line through a transformer; the power utilization load circuit of the company is connected with the transformer through a change-over switch, and the change-over switch is also connected with a standby generator; and the change-over switch controls the generator to start to supply power to the power utilization load circuit of the key equipment after detecting the transformer power-off signal.
Preferably, the high-voltage side power supply line comprises a dedicated high-voltage line for Huasheng and a bridge high-voltage line which are connected in parallel and connected with the transformer.
Preferably, the change-over switch comprises an underground pillar and a protective shell fixedly connected to the underground pillar, a support frame is mounted at the bottom of the protective shell, a power supply detection controller is mounted on the support frame, and a lithium battery connected with the power supply detection controller is mounted in the underground pillar; the power supply detection controller is provided with a detection cable connected with the transformer and a starting cable connected with a starter of the standby generator; the protection shell is provided with a normally closed connector for connecting the transformer and an electric load circuit of key equipment; the protective shell is also provided with a normally open connector for connecting the standby generator with an electric load circuit for key equipment; the support frame is provided with a control unit for controlling the normally open connector to be connected or disconnected, and the control unit is connected with the power supply detection controller.
Preferably, normally open the connector including the input that is connected with reserve generator to reach the output that is connected with key equipment power consumption load, the input is connected and is located the one end interval setting in the protective housing with the output.
Preferably, the control unit comprises a reciprocating telescopic motor fixedly mounted on the support frame, an insulating plate is fixedly mounted on a telescopic shaft of the reciprocating telescopic motor, and a conductive connecting plate used for connecting the input connector and the output connector is mounted on the insulating plate.
Preferably, a pushing mechanism for pushing the conductive connecting plate to move downwards is mounted in the protective shell, the pushing mechanism comprises a support sleeve fixedly connected to the protective shell, a telescopic rod is slidably mounted in the support sleeve, and a limiting shell for abutting against the conductive connecting plate is fixedly connected to the lower end of the telescopic rod; and the supporting sleeve is provided with a pushing spring with one end abutting against the limiting shell.
Preferably, the limiting shell is made of an insulating material.
Preferably, the lithium battery is a rechargeable battery.
Compared with the prior art, the invention has the following beneficial effects:
detecting a normal power supply line through a change-over switch, and directly guiding power to an electric load line for key equipment when detecting that the power supply is normal so as to ensure the normal operation of the key equipment; controlling the standby generator to start and direct standby power to the critical equipment when a power outage condition is detected; therefore, the fast switching process is realized, and the slow rhythm that the standby motor needs to be manually started in the existing state is improved.
Drawings
FIG. 1 is a schematic diagram of the operation of one embodiment of the present invention;
FIG. 2 is a schematic diagram of the structure of the transfer switch;
FIG. 3 is a schematic structural view of a pushing mechanism;
in the figure, an underground pillar 1, a protective shell 2, a support frame 3, a power supply detection controller 4, a lithium battery 5, a detection cable 6, a starting cable 7, a normally closed connector 8, a normally open connector 9, an input connector 91, an output connector 92, a control unit 10, a reciprocating telescopic motor 101, an insulating plate 102, a conductive connecting plate 103, a pushing mechanism 11, a support sleeve 111, a telescopic rod 112, a limit shell 113 and a pushing spring 114.
Detailed Description
The present invention is further described below in conjunction with the following figures and specific examples so that those skilled in the art may better understand the present invention and practice it, but the examples are not intended to limit the present invention.
As shown in fig. 1, the invention provides a dual power supply automatic switching power supply system, which includes a high-voltage side power supply line and a low-voltage side power supply line, where the low-voltage side power supply line includes a company power load line and a key device power load line, and the company power load line is connected to the high-voltage side power supply line through a transformer; the power utilization load circuit of the company is connected with the transformer through a change-over switch, and the change-over switch is also connected with a standby generator; and the change-over switch controls the generator to start to supply power to the power utilization load circuit of the key equipment after detecting the transformer power-off signal. Under normal power supply state, provide electric power for the low pressure side power supply line after handling high-tension electricity through the transformer with the high pressure side power supply line, mainly supply power for company's power consumption load circuit and key equipment power consumption load circuit, wherein key equipment power consumption load circuit switches on through change over switch to change over switch detects main power supply line outage back, controls the start-up of reserve generator and conducts reserve power to key equipment power consumption load circuit, thereby guarantees that key equipment can last normal operating.
In order to ensure that the power supply of the high-voltage side is relatively stable and can continuously supply power under the non-special condition, the high-voltage side power supply line comprises a Huasheng special high-voltage line and a bridge high-voltage line which are connected in parallel and connected with a transformer, so that the probability of simultaneous failure or power failure is low.
When power failure or fault occurs, the standby power is switched and controlled mainly through the change-over switch so as to ensure the normal state of the electric load circuit for the key equipment; as shown in fig. 2 to fig. 3, the change-over switch includes a buried support 1 and a protective casing 2 fixedly connected to the buried support 1, a support frame 3 is installed at the bottom of the protective casing 2, a power detection controller 4 is installed on the support frame 3, a lithium battery 5 connected to the power detection controller 4 is installed in the buried support 1, the lithium battery 5 supplies power to the power detection controller 4, and in order to keep the power of the lithium battery 5 sufficient, the lithium battery 5 is a rechargeable battery and the lithium battery 5 is charged by the power detection controller 4 in a normal working state, and the normal working of the power detection controller 4 can be supported under the condition that the main line is powered off. The power supply detection controller 4 is provided with a detection cable 6 connected with the transformer and a starting cable 7 connected with a starter of the standby generator, when the power supply detection controller 4 detects that the main power supply line is powered off or has a fault, the power supply detection controller transmits a control signal and drives the power supply to the starter of the standby generator through the starting cable so as to drive the standby generator to operate, after the standby generator operates, the standby power is transmitted to an electric load circuit of key equipment, the whole starting process consumes about 15s, and the method is quicker compared with a manual starting process.
A normally closed connector 8 for connecting a transformer and an electric load circuit of key equipment is arranged on the protective shell 2, and the normally closed connector 8 mainly plays a role of continuous conduction in a normal operation state; meanwhile, a normally open connector 9 for connecting the standby generator and an electric load circuit for key equipment is also arranged on the protective shell 2, and in a normal power supply state, the normally open connector 9 is completely disconnected so as to ensure the normal use of the normally closed connector 8; install the control unit 10 that is used for controlling normally open connector 9 and connects or break off on support frame 3, control unit 10 is connected with power detection controller 4, and when the power supply was unusual, make normally open connector 9 switch-on through the action of control unit 10, the power transmission who sends standby generator to key equipment power consumption load circuit to switch two power supply, and guarantee the normal operating of key equipment.
Specifically, the normally open connector 9 includes an input connector 91 connected to the standby generator and an output connector 92 connected to the electrical load of the key device, and the input connector 91 and the output connector 92 are disposed at an interval at one end inside the protective housing 2; the control unit 10 comprises a reciprocating telescopic motor 101 fixedly mounted on the support frame 3, an insulating plate 102 is fixedly mounted on a telescopic shaft of the reciprocating telescopic motor 101, and a conductive connecting plate 103 used for connecting the input connector 91 and the output connector 92 is mounted on the insulating plate 102; after the power-off state, the power detection controller 4 controls the reciprocating telescoping motor 101 to act, pushes the conductive connection plate 103 to move upwards so that the input connector 91 is communicated with the output connector 92, and avoids the condition that the reciprocating telescoping motor 101 is electrified through the insulation plate 102.
When the normally open state is kept, in order to avoid the contact of the conductive connecting plate 103 with the normally open connector 9, a pushing mechanism 11 for pushing the conductive connecting plate 103 to move downwards is installed in the protective shell 2, the pushing mechanism 11 comprises a support sleeve 111 fixedly connected to the protective shell 2, a telescopic rod 112 is installed in the support sleeve 111 in a sliding manner, a limit shell 113 for abutting against the conductive connecting plate 103 is fixedly connected to the lower end of the telescopic rod 112, and a pushing spring 114 with one end abutting against the limit shell 113 is arranged on the support sleeve 111; under normally opening connector 9 off-state, thereby promote spacing shell 113 downstream through the effect that promotes spring 114 and promote electrically conductive fishplate bar 103 principle normally open connector 9 to avoid appearing the unexpected condition of switching on, wherein spacing shell 113 adopts insulating material.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (8)
1. The utility model provides a dual supply automatic switch power supply system, includes high pressure side power supply line and low pressure side power supply line, its characterized in that: the low-voltage side power supply circuit comprises a company power load circuit and a key equipment power load circuit, and the company power load circuit is connected with the high-voltage side power supply circuit through a transformer; the power utilization load circuit of the company is connected with the transformer through a change-over switch, and the change-over switch is also connected with a standby generator;
and the change-over switch controls the generator to start to supply power to the power utilization load circuit of the key equipment after detecting the transformer power-off signal.
2. The dual-power automatic switching power supply system according to claim 1, wherein: the high-voltage side power supply line comprises a Huasheng special high-voltage line and a bridge high-voltage line which are connected in parallel and connected with a transformer.
3. The dual power supply automatic switching power supply system according to claim 1 or 2, characterized in that: the change-over switch comprises an underground pillar and a protective shell fixedly connected to the underground pillar, a support frame is mounted at the bottom of the protective shell, a power supply detection controller is mounted on the support frame, and a lithium battery connected with the power supply detection controller is mounted in the underground pillar;
the power supply detection controller is provided with a detection cable connected with the transformer and a starting cable connected with a starter of the standby generator;
the protection shell is provided with a normally closed connector for connecting the transformer and an electric load circuit of key equipment;
the protective shell is also provided with a normally open connector for connecting the standby generator with an electric load circuit for key equipment;
the support frame is provided with a control unit for controlling the normally open connector to be connected or disconnected, and the control unit is connected with the power supply detection controller.
4. The dual power supply automatic switching power supply system according to claim 3, characterized in that: normally open the connector and include the input joint of being connected with reserve generator to and the output joint of being connected with key equipment electrical load, the input joint sets up with the one end interval that output joint is located protective housing.
5. The dual-power automatic switching power supply system according to claim 4, wherein: the control unit comprises a reciprocating telescopic motor fixedly mounted on the support frame, an insulating plate is fixedly mounted on a telescopic shaft of the reciprocating telescopic motor, and an electric conduction connecting plate used for connecting the input connector and the output connector is mounted on the insulating plate.
6. The dual-power automatic switching power supply system according to claim 4, wherein: a pushing mechanism used for pushing the conductive connecting plate to move downwards is arranged in the protective shell and comprises a supporting sleeve fixedly connected to the protective shell, a telescopic rod is slidably arranged in the supporting sleeve, and a limiting shell used for abutting against the conductive connecting plate is fixedly connected to the lower end of the telescopic rod;
and the supporting sleeve is provided with a pushing spring with one end abutting against the limiting shell.
7. The dual-power automatic switching power supply system according to claim 6, wherein: the limiting shell is made of insulating materials.
8. The dual power supply automatic switching power supply system according to claim 3, characterized in that: the lithium battery is a rechargeable battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010121552.3A CN111327106B (en) | 2020-02-26 | 2020-02-26 | Dual-power automatic switching power supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010121552.3A CN111327106B (en) | 2020-02-26 | 2020-02-26 | Dual-power automatic switching power supply system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111327106A true CN111327106A (en) | 2020-06-23 |
| CN111327106B CN111327106B (en) | 2023-09-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010121552.3A Active CN111327106B (en) | 2020-02-26 | 2020-02-26 | Dual-power automatic switching power supply system |
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| CN (1) | CN111327106B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113314361A (en) * | 2021-06-11 | 2021-08-27 | 中煤科工集团信息技术有限公司 | Cable rapid alternate power supply replacing device and method suitable for multi-equipment group |
| CN115065146A (en) * | 2022-08-15 | 2022-09-16 | 广东电网有限责任公司云浮供电局 | Power-protection conversion device for overhead line and control method |
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| CN201238200Y (en) * | 2008-03-25 | 2009-05-13 | 颜怀略 | Intelligent generator set for uninterrupted power supply |
| CN201369602Y (en) * | 2009-03-13 | 2009-12-23 | 温州市创力电子有限公司 | Alternating-current distribution unit |
| CN104917288A (en) * | 2015-06-30 | 2015-09-16 | 遵义市产品质量检验检测院 | Laboratory uninterrupted power supply system |
| CN106230098A (en) * | 2016-07-30 | 2016-12-14 | 孟玲 | The high-tension switch cabinet system that a kind of security performance is high |
| CN206759143U (en) * | 2017-06-01 | 2017-12-15 | 中国神华能源股份有限公司 | Plant standby power supply system |
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2020
- 2020-02-26 CN CN202010121552.3A patent/CN111327106B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201238200Y (en) * | 2008-03-25 | 2009-05-13 | 颜怀略 | Intelligent generator set for uninterrupted power supply |
| CN201369602Y (en) * | 2009-03-13 | 2009-12-23 | 温州市创力电子有限公司 | Alternating-current distribution unit |
| CN104917288A (en) * | 2015-06-30 | 2015-09-16 | 遵义市产品质量检验检测院 | Laboratory uninterrupted power supply system |
| CN106230098A (en) * | 2016-07-30 | 2016-12-14 | 孟玲 | The high-tension switch cabinet system that a kind of security performance is high |
| CN206759143U (en) * | 2017-06-01 | 2017-12-15 | 中国神华能源股份有限公司 | Plant standby power supply system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113314361A (en) * | 2021-06-11 | 2021-08-27 | 中煤科工集团信息技术有限公司 | Cable rapid alternate power supply replacing device and method suitable for multi-equipment group |
| CN113314361B (en) * | 2021-06-11 | 2023-07-25 | 中煤科工集团信息技术有限公司 | Cable rapid alternating power supply replacement device and method suitable for multiple equipment groups |
| CN115065146A (en) * | 2022-08-15 | 2022-09-16 | 广东电网有限责任公司云浮供电局 | Power-protection conversion device for overhead line and control method |
| CN115065146B (en) * | 2022-08-15 | 2022-12-13 | 广东电网有限责任公司云浮供电局 | Power-protection conversion device for overhead line and control method |
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| Publication number | Publication date |
|---|---|
| CN111327106B (en) | 2023-09-08 |
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