CN208874351U - A kind of nuclear safe level uninterruptible power system and its bypass voltage monitor warning circuit - Google Patents
A kind of nuclear safe level uninterruptible power system and its bypass voltage monitor warning circuit Download PDFInfo
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- CN208874351U CN208874351U CN201821601800.9U CN201821601800U CN208874351U CN 208874351 U CN208874351 U CN 208874351U CN 201821601800 U CN201821601800 U CN 201821601800U CN 208874351 U CN208874351 U CN 208874351U
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- voltage
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- uninterruptible power
- relay
- power system
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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
- 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
- Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02B90/20—Smart grids as enabling technology in buildings sector
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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
- Y04S20/12—Energy storage units, uninterruptible power supply [UPS] systems or standby or emergency generators, e.g. in the last power distribution stages
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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
- Y04S20/248—UPS systems or standby or emergency generators
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- Stand-By Power Supply Arrangements (AREA)
Abstract
The utility model discloses a kind of nuclear safe level uninterruptible power system bypass voltages to monitor warning circuit, setting is in uninterruptible power system bypass, it include: voltage relay, two input terminal be connected to the bypass cathode power supply line and negative electricity crimping on, the bypass voltage over-voltage or it is under-voltage when output control signal；Inverter switch unit is connected with the output end of the voltage relay, for carrying out locking switching to the inverter of the uninterruptible power system when receiving the control signal；First alarm is connected to the output end of the voltage relay；Second alarm is connected by a time-delay relay with the output end of the voltage relay.The invention also discloses corresponding nuclear safe level uninterruptible power systems.Implement the utility model, have many advantages, such as be easy implement, it is highly-safe.
Description
Technical field
The utility model relates to this in nuclear safe level uninterruptible power system field, not more particularly to a kind of nuclear safe level
Uninterruptible power system and its bypass voltage monitor warning circuit.
Background technique
Due to the importance of npp safety operation, important instrument, important valve and control load all it is required a kind of not between
Disconnected, highly reliable, high performance power supply, therefore importance of the ac uninterrupted power supply system in nuclear power station is self-evident.Core peace
For full grade uninterruptible power system mainly by two independent power supply power supplies of inverter and transformer, transformer is the standby of inverter
Power supply.As shown in Figure 1, being a kind of existing structural schematic diagram of uninterruptible power system.220V ac bus under normal circumstances
By inverter power supply.It is unsatisfactory in the condition of output or input voltage or in the case of inverter c maintenance, power supply is logical
It crosses static switch and automatically switches into bypass circuit, load power supply is not interrupted when switching.
As the important component of uninterruptible power supply, the normal operation of bypass circuit is also most important, it is necessary to side
Road carries out voltage monitoring, but still without bypassing monitoring, alarming circuit well in existing technology, in existing technology,
More system can be latched inverter to auto by pass switching to bypass voltage in time in limited time, but bypass since no normal direction master control is sent
Electric voltage exception alarm, operations staff can not know this signal at the first time, can not intervene handling failure in time.There is also sides simultaneously
Operations staff's manual switching to bypass causes whole disk power loss, downstream important load that will lose the wind of power supply supply under the fault condition of road
Danger.
Utility model content
Technical problem to be solved by the utility model is to provide a kind of nuclear safe level uninterruptible power system and its sides
Road voltage monitoring warning circuit, it is easy to implement, is highly-safe.
In order to solve the above technical problems, the utility model embodiment provides a kind of nuclear safe level uninterruptible power system bypass
Voltage monitoring warning circuit, setting is in uninterruptible power system bypass, comprising:
Voltage relay, two input terminal are connected on the cathode power supply line and negative electricity crimping of the bypass,
The bypass voltage over-voltage or it is under-voltage when output control signal；
Inverter switch unit is connected with the output end of the voltage relay, for receiving the control letter
Number when, locking switching is carried out to the inverter of the uninterruptible power system；
First alarm is connected to the output end of the voltage relay；
Second alarm is connected by a time-delay relay with the output end of the voltage relay.
Wherein, passing through a fusible resistance break and the bypass respectively just in two input terminals of the voltage relay
Pole power supply line is connected with negative electricity crimping.
Wherein, first alarm is set on or near the uninterruptible power system, and second alarm is set
It is placed in master control room, is connected by cable with the time-delay relay.
Wherein, the inverter switch unit connects bypass changeover switch.
Wherein, the voltage relay detects output control signal when bypass voltage is more than ± the 10% of normal voltage.
Correspondingly, the utility model also provides a kind of nuclear safe level uninterruptible power system, includes at least inverter, becomes
The bypass on the transformer is arranged in depressor, further comprises a bypass voltage monitoring warning circuit, the bypass voltage prison
Visual alarm circuit includes:
Voltage relay, two input terminal are connected on the cathode power supply line and negative electricity crimping of the bypass,
The bypass voltage over-voltage or it is under-voltage when output control signal；
Inverter switch unit is connected with the output end of the voltage relay, for receiving the control letter
Number when, locking switching is carried out to the inverter of the uninterruptible power system；
First alarm is connected to the output end of the voltage relay；
Second alarm is connected by a time-delay relay with the output end of the voltage relay.
Wherein, passing through a fusible resistance break and the bypass respectively just in two input terminals of the voltage relay
Pole power supply line is connected with negative electricity crimping.
Wherein, first alarm is set on or near the uninterruptible power system, and second alarm is set
It is placed in master control room, is connected by cable with the time-delay relay.
Wherein, the inverter switch unit connects bypass changeover switch.
Wherein, the voltage relay detects output control signal when bypass voltage is more than ± the 10% of normal voltage.
Implement the utility model, have it is following the utility model has the advantages that
In the embodiment of the utility model, by that alarm signal will be sent in main control room all the way, it may be implemented to pacify in core
When the out-of-limit system automatic blocking inverter of bypass voltage is to bypass changeover, main control room can obtain full grade uninterruptible power system
Warning message is obtained, operations staff also effectively prevents operation people to know this information and intervene the problem of handling in time
Member leads to the risk of system power loss under this failure to bypass changeover；
By time-delay relay, delayed alarm is carried out, can be prevented because bypassing upstream power supply under the normal transient operating condition of power station
The problem of short time voltage fluctuation causes uninterruptible power system bypass voltage off-limit alarm frequently to trigger；
The scheme of the utility model design need to only increase voltage relay in existing nuclear safe level uninterruptible power supply screen cabinet
Device and time-delay relay occupy hall space without separately setting screen cabinet, implement very convenient；Existing nuclear safe level can be improved not in it
The reliability of uninterruptible power system guarantees the reliable power supply of reactor uninterruptible power supply downstream important load；It is not only suitable for core
The analog uninterruptible power system of power station nuclear safe level, also simultaneously be suitable for microcomputer type uninterruptible power system bypass monitoring with
Alarm circuit.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, before not making the creative labor property
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of structural schematic diagram of existing uninterruptible power system；
Fig. 2 is a kind of nuclear safe level uninterruptible power system bypass voltage monitoring warning circuit provided by the utility model
The structural schematic diagram of one embodiment.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
Every other embodiment obtained, fall within the protection scope of the utility model.
As shown in Figure 1, showing a kind of nuclear safe level uninterruptible power system bypass voltage prison provided by the utility model
The structural schematic diagram of one embodiment of visual alarm circuit.In this embodiment, it is arranged by the uninterruptible power system
On the road, comprising:
Voltage relay, two input terminal are connected on the cathode power supply line and negative electricity crimping of the bypass,
The bypass voltage over-voltage or it is under-voltage when output control signal；Specifically, in one example, the voltage relay detection
To bypass voltage be more than normal voltage ± 10% when output control signal, it is to be understood that in various embodiments, can
Different judgement over-voltage or under-voltage threshold value is arranged；
Inverter switch unit is connected with the output end of the voltage relay, for receiving the control letter
Number when, locking switching is carried out to the inverter of the uninterruptible power system；
First alarm is connected to the output end of the voltage relay, can be the report of such as sound, light, electricity etc
Alert device；
Second alarm is connected by a time-delay relay with the output end of the voltage relay, wherein described
Time-delay relay can carry out delay setting, such as in one example, can be set to 20s, if it exceeds 20 seconds, institute
It states control signal (i.e. alarm signal) to always exist, then the control signal can be sent to master control room and alarmed, if institute
State control signal there are the time be no more than 20 seconds, then not by the control signal reporting to master control room.
Wherein, two input terminals of the voltage relay pass through respectively a fusible resistance break (F1, F2 in Fig. 2) with
The cathode power supply line of the bypass is connected with negative electricity crimping.
Wherein, first alarm is set on or near the uninterruptible power system and (is set to local), institute
It states the second alarm to be set in master control room, be connected by cable with the time-delay relay.
Wherein, the inverter switch unit connects a bypass changeover switch K1, comes from when inverter switch unit receives
When the control signal of voltage relay, the bypass changeover switch K1 can be controlled and opened, cut with realizing that inverter carries out locking
It changes.
Correspondingly, the utility model also provides a kind of nuclear safe level uninterruptible power system, includes at least inverter, becomes
The bypass on the transformer is arranged in depressor, further comprises bypass voltage monitoring warning circuit above-mentioned, the bypass electricity
The details of pressure monitoring warning circuit, can refer to the aforementioned description to Fig. 2, herein without being described in detail.
It is understood that a kind of nuclear safe level uninterruptible power system provided by the utility model and its bypass voltage prison
Depending on and warning circuit, by using voltage relay monitor bypass voltage, bypass voltage exceed normal operation range ± 10%
When locking inverter to bypass transformer switching and to master control room send alarm signal, at the first time inform operations staff processing,
Simultaneously in order to avoid (such as line tripping is sent out in power station to the common normal transient operating condition in power station or reclosing, large capacity station-service equipment open
Stop, station service is normal or the operating conditions such as judging accident) caused by frequently alarm, the utility model is monitored and is alarmed back in bypass voltage
Increase time-delay relay in road, the time definite value of the time-delay relay is by above-mentioned common operating condition maximum duration (main pump starts the time)
Adjusting is frequently alarmed caused by bypass upstream AC power source short-time fluctuations with escaping.
To sum up, the utility model have it is following the utility model has the advantages that
In the embodiment of the utility model, by the way that alarm signal in local alarm, another way main control room will be sent to all the way
In, it may be implemented in nuclear safe level uninterruptible power system in the out-of-limit system automatic blocking inverter of bypass voltage to bypass changeover
When, main control room can obtain warning message, operations staff to know this information and intervene the problem of handling in time, while
Effectively prevent operations staff leads to the risk of system power loss under this failure to bypass changeover；
By time-delay relay, delayed alarm is carried out, can be prevented because bypassing upstream power supply under the normal transient operating condition of power station
The problem of short time voltage fluctuation causes uninterruptible power system bypass voltage off-limit alarm frequently to trigger；
The scheme of the utility model design need to only increase voltage relay in existing nuclear safe level uninterruptible power supply screen cabinet
Device and time-delay relay occupy hall space without separately setting screen cabinet, implement very convenient；Existing nuclear safe level can be improved not in it
The reliability of uninterruptible power system guarantees the reliable power supply of reactor uninterruptible power supply downstream important load；It is not only suitable for core
The analog uninterruptible power system of power station nuclear safe level, also simultaneously be suitable for microcomputer type uninterruptible power system bypass monitoring with
Alarm circuit.
Above disclosed is only a kind of preferred embodiment of the utility model, certainly cannot be practical to limit with this
Novel interest field, therefore equivalent variations made according to the claim of the utility model still belong to what the utility model was covered
Range.
Claims (10)
1. a kind of nuclear safe level uninterruptible power system bypass voltage monitors warning circuit, it is arranged in the uninterruptible power system
In bypass characterized by comprising
Voltage relay, two input terminal is connected on the cathode power supply line and negative electricity crimping of the bypass, in institute
State bypass voltage over-voltage or it is under-voltage when output control signal；
Inverter switch unit is connected with the output end of the voltage relay, for when receiving the control signal,
Locking switching is carried out to the inverter of the uninterruptible power system；
First alarm is connected to the output end of the voltage relay；
Second alarm is connected by a time-delay relay with the output end of the voltage relay.
2. circuit as described in claim 1, which is characterized in that pass through one respectively in two input terminals of the voltage relay
A fusible resistance break is connected with the cathode power supply line of the bypass with negative electricity crimping.
3. circuit as claimed in claim 2, which is characterized in that first alarm is set to the uninterruptible power system
On or near, second alarm is set to master control room, is connected by cable with the time-delay relay.
4. circuit as claimed in claim 3, which is characterized in that the inverter switch unit connects bypass changeover switch.
5. circuit as claimed in claim 4, which is characterized in that the voltage relay detects that bypass voltage is more than normal electricity
Pressure ± 10% when output control signal.
6. a kind of nuclear safe level uninterruptible power system includes at least inverter, transformer, is arranged on the transformer
Bypass, which is characterized in that further comprise a bypass voltage monitoring warning circuit, the bypass voltage monitors warning circuit packet
It includes:
Voltage relay, two input terminal is connected on the cathode power supply line and negative electricity crimping of the bypass, in institute
State bypass voltage over-voltage or it is under-voltage when output control signal；
Inverter switch unit is connected with the output end of the voltage relay, for when receiving the control signal,
Locking switching is carried out to the inverter of the uninterruptible power system；
First alarm is connected to the output end of the voltage relay；
Second alarm is connected by a time-delay relay with the output end of the voltage relay.
7. system as claimed in claim 6, which is characterized in that pass through one respectively in two input terminals of the voltage relay
A fusible resistance break is connected with the cathode power supply line of the bypass with negative electricity crimping.
8. system as claimed in claim 7, which is characterized in that first alarm is set to the uninterruptible power system
On or near, second alarm is set to master control room, is connected by cable with the time-delay relay.
9. system as claimed in claim 8, which is characterized in that the inverter switch unit connects bypass changeover switch.
10. system as claimed in claim 9, which is characterized in that the voltage relay detects that bypass voltage is more than normal
Voltage ± 10% when output control signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821601800.9U CN208874351U (en) | 2018-09-29 | 2018-09-29 | A kind of nuclear safe level uninterruptible power system and its bypass voltage monitor warning circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821601800.9U CN208874351U (en) | 2018-09-29 | 2018-09-29 | A kind of nuclear safe level uninterruptible power system and its bypass voltage monitor warning circuit |
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| CN208874351U true CN208874351U (en) | 2019-05-17 |
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| CN201821601800.9U Active CN208874351U (en) | 2018-09-29 | 2018-09-29 | A kind of nuclear safe level uninterruptible power system and its bypass voltage monitor warning circuit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109245280A (en) * | 2018-09-29 | 2019-01-18 | 中广核研究院有限公司 | A kind of nuclear safe level uninterruptible power system and its bypass voltage monitor warning circuit |
| CN111330159A (en) * | 2020-02-28 | 2020-06-26 | 创领心律管理医疗器械（上海）有限公司 | Implantable medical device and power management system thereof |
-
2018
- 2018-09-29 CN CN201821601800.9U patent/CN208874351U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109245280A (en) * | 2018-09-29 | 2019-01-18 | 中广核研究院有限公司 | A kind of nuclear safe level uninterruptible power system and its bypass voltage monitor warning circuit |
| CN111330159A (en) * | 2020-02-28 | 2020-06-26 | 创领心律管理医疗器械（上海）有限公司 | Implantable medical device and power management system thereof |
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