CN107121645A - A kind of high-tension switch gear and electrical power monitoring device - Google Patents
A kind of high-tension switch gear and electrical power monitoring device Download PDFInfo
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- CN107121645A CN107121645A CN201710178562.9A CN201710178562A CN107121645A CN 107121645 A CN107121645 A CN 107121645A CN 201710178562 A CN201710178562 A CN 201710178562A CN 107121645 A CN107121645 A CN 107121645A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/40—Testing power supplies
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Abstract
The present invention relates to a kind of high-tension switch gear and electrical power monitoring device, wherein electrical power monitoring device includes central processing unit, data transmission module and dormancy awakening triggers circuit module；The signal input part for receiving the electric current installed at monitored equipment power supply, voltage integrated transducer is provided with central processing unit；Dormancy awakening triggers circuit module is provided with the port for receiving the electric current installed at monitored equipment power supply, the detection signal of voltage integrated transducer, its output end is connected with the wake-up trigger end of central processing unit, for the triggering wake-up central processing unit in electric current, voltage signal change.The present invention solve that existing power supply monitoring device system energy consumption is big, data transmission credibility is not high and only monitoring, without control, power quality supervisor is poor the problem of.Meanwhile, by being monitored in real time to high-tension switch gear secondary power supply, the major accident caused by secondary power supply failure causes high-voltage switch gear normally to cut off electric network fault can be prevented effectively from.
Description
Technical field
The present invention relates to a kind of high-tension switch gear and electrical power monitoring device, it is mainly used in high-tension switch gear secondary power supply
Monitoring and controlling field.
Background technology
With the large-scale promotion of Intelligent high voltage switch device, increasing electronic installation is installed on on-site control
Interior, device power supply (DPS) monitoring device is by the way that the module with analytic function is integrated in monitoring device, to realize that site is handled,
The power source features information of real time on-line monitoring high-tension switch gear general supply, local analysis handling failure reason, and using wirelessly
The communication technology, directly on send analysis result.But during equipment condition monitoring, analysis and processing module is in work shape all the time
State, accordingly, it would be desirable to which long-time reliable power supply, electric quantity consumption is larger.Monitoring device undoubtedly increases energy long lasting for sex work
Amount loss, increases its electric energy supply burden, on the other hand, when monitoring processing module and sensor device in larger distance, sensing
The data that device is collected are larger by the influence of electromagnetic interference, and the transmission reliability of the power parameter of high-tension switch gear is low.Cause
This, also more and more higher is required to the q＆r of secondary power supply.
In addition, the country is wideling popularize Diagnostic Examination And Repair of Electric Power Facilities work at present, high-tension switch gear is used as power train
The important element of system, its equipment dependability has vital influence to Operation of Electric Systems reliability.
At present, power supply used for high-voltage switch typically has two-way power supply to power, and power supply is exclusively used in all the way, all the way as standby, i.e.,
Only when being exclusively used in the power cut-off of power supply, just it is switched to stand-by power supply and is powered.But, once power supply breaks down,
And power network also breaks down, then high-voltage switch gear can not normally be cut-off, i.e., electric network fault cannot be cut off, it is impossible to be controlled,
And power quality supervisor is relatively poor, the harm so caused can be extremely serious.Therefore, monitoring, control for device power supply (DPS)
It is also particularly important.
Therefore, how while high-tension switch gear power supply monitoring is realized, reduction electrical power monitoring device system is present
The problem of energy consumption is big, data transmission credibility is not high, the important research content as monitored equipment electrical power monitoring device.
The content of the invention
It is an object of the invention to provide a kind of high-tension switch gear and electrical power monitoring device, for solving to set monitored
In the monitoring process of stand-by power source, because processor module is constantly in working condition and causes the problem of plant energy consumption is big.
To achieve these goals, the invention provides a kind of electrical power monitoring device, mainly including following scheme：
Monitoring device scheme one：The monitoring device includes central processing unit, data transmission module and dormancy awakening triggering electricity
Road module；
The central processing unit is to be provided with long sleep block, the central processing unit for receiving monitored equipment electricity
Electric current, the electric current of voltage integrated transducer, the signal input part of voltage signal installed at source；The data transmission module with
The signal output part of the central processing unit is connected；
The dormancy awakening triggers circuit module is provided with for receiving the electric current installed at monitored equipment power supply, voltage
The port of the detection signal of integrated transducer, output end and the central processing unit of the dormancy awakening triggers circuit module
Wake-up trigger end be connected, detect the electric current of monitored equipment power supply, voltage for electric current, voltage integrated transducer
Triggering wakes up the central processing unit during signal intensity.
Monitoring device scheme two：On the basis of monitoring device scheme one, the monitoring device also includes control power supply and cut
Change circuit module；It is described control power supply switch circuit module one end be connected with the output end of central processing unit, the other end respectively with
The first power supply, the second source of monitored equipment are connected, when the first power supply of monitored equipment breaks down, the electricity detected
When stream, voltage signal are abnormal, for controlling the automatic switchover between the first power supply of monitored equipment and second source, the is realized
Two power supplys are powered for monitoring device.
Monitoring device scheme three：On the basis of monitoring device scheme one, the data transmission module is to be wirelessly transferred mould
Block.
Monitoring device scheme four：On the basis of monitoring device scheme three, the wireless transport module is 4G or more than 4G
Transport module.
Monitoring device scheme five：On the basis of monitoring device scheme one, the central processing unit is single-chip microcomputer.
Monitoring device scheme six：On the basis of monitoring device scheme one, the monitoring device also includes：Battery-powered electricity
Road module, the battery-powered circuit module is connected with central processing unit.
Monitoring device scheme seven：On the basis of monitoring device scheme one, the monitoring device also includes：Serial communication mould
Block, one end of the serial communication modular is connected with the one of port of the central processing unit, and the other end, which is used to input, to be controlled
Parameter.
Monitoring device scheme eight：On the basis of monitoring device scheme one, the monitoring device also includes：Time setting circuit mould
Block and data memory module, the time setting circuit module and data memory module are connected with the central processing unit respectively；It is described
Central processing unit is set time with the time setting circuit module, and time tag is added into electric current, voltage signal；The data are deposited
Storage module is used to store electric current, the voltage signal for adding time tag.
Monitoring device scheme nine：On the basis of monitoring device scheme one, the monitoring device also includes：A/D moduluss of conversion
Block, the central processing unit is by the A/D modular converters and is separately mounted at the first power supply of monitored equipment and second
Electric current, voltage integrated transducer at power supply are connected.
Monitoring device scheme ten：On the basis of monitoring device scheme nine, the monitoring device also includes：Filtering conditioning electricity
Road module, the A/D modular converters pass through the filtering conditioning circuit module and the first electricity for being separately mounted to monitored equipment
It is connected at source with the electric current at second source, voltage integrated transducer.
Present invention also offers a kind of high-tension switch gear with electrical power monitoring device, including following scheme：
High-tension switch gear scheme one：The high-tension switch gear includes high-tension switch gear body and is separately positioned on height
Electric current, voltage integrated transducer at the power supply of voltage switching station first and at second source, the high-tension switch gear body
On be provided with electrical power monitoring device, the electrical power monitoring device include central processing unit, data transmission module and dormancy awakening triggering
Circuit module；
The central processing unit is to be provided with long sleep block, the central processing unit for receiving in monitored equipment
Electric current, the electric current of voltage integrated transducer, the signal input part of voltage signal installed at power supply；The data transmission module
It is connected with the signal output part of the central processing unit；
The dormancy awakening triggers circuit module is provided with for receiving the electric current installed at monitored equipment power supply, electricity
The port of the detection signal of integrated transducer is pressed, the output end of the dormancy awakening triggers circuit module is handled with the center
The wake-up trigger end of device is connected, and the electric current of monitored equipment power supply, voltage are detected for electric current, voltage integrated transducer
Triggering wakes up the central processing unit during signal intensity.
High-tension switch gear scheme two：On the basis of high-tension switch gear scheme one, the monitoring device also includes：Control
Power supply switch circuit module processed, described control power supply switch circuit module one end is connected with the output end of central processing unit, another
End is connected with the first power supply, the second source of high-tension switch gear respectively, when the first power supply of high-tension switch gear breaks down
When, when the electric current that detects, voltage signal are abnormal, for controlling between the first power supply of high-tension switch gear and second source
Automatically switch, realize that second source is powered for high-tension switch gear.
High-tension switch gear scheme three：On the basis of high-tension switch gear scheme two, the data transmission module is nothing
Line transport module.
High-tension switch gear scheme four：On the basis of high-tension switch gear scheme three, the wireless transport module is 4G
Or more than 4G transport module.
High-tension switch gear scheme five：On the basis of high-tension switch gear scheme one, the central processing unit is monolithic
Machine.
High-tension switch gear scheme six：On the basis of high-tension switch gear scheme one, the monitoring device also includes：Electricity
Pond energy supply circuit module, the battery-powered circuit module is connected with central processing unit.
High-tension switch gear scheme seven：On the basis of high-tension switch gear scheme one, the monitoring device also includes：String
Port communications module, one end of the serial communication modular is connected with the one of port of the central processing unit, and the other end is used for
Input control parameter.
High-tension switch gear scheme eight：On the basis of high-tension switch gear scheme one, the monitoring device also includes：It is right
When circuit module and data memory module, the time setting circuit module and data memory module respectively with the central processing unit phase
Even；The central processing unit is set time with the time setting circuit module, and time tag is added into electric current, voltage signal；Institute
State data memory module be used for store add electric current, the voltage signal of time tag.
High-tension switch gear scheme nine：On the basis of high-tension switch gear scheme one, the monitoring device also includes:A/
D modular converters, the central processing unit is by the A/D modular converters and is separately mounted at the first power supply of monitored equipment
It is connected with the electric current at second source, voltage integrated transducer.
High-tension switch gear scheme ten：On the basis of high-tension switch gear scheme nine, the monitoring device also includes：Filter
Ripple conditioning circuit module, the A/D modular converters are by the filtering conditioning circuit module and are separately mounted to monitored equipment
The first power supply at be connected with the electric current at second source, voltage integrated transducer.
The beneficial effects of the invention are as follows：
(1) by using dormancy awakening triggers circuit module in electrical power monitoring device, the trigger module is to monitored equipment
Electric current, the voltage signal of power supply are judged, processor module is triggered when monitoring current, voltage signal are changed greatly by dormancy
State is switched to working condition, and monitoring device can be made to enter low power consumpting state in the case of without power consumption, electric energy has been saved.
(2) high-tension switch gear secondary power supply is monitored in real time, and more quality power can be automatically switched to, improve electricity
Source quality and power supply reliability, can be prevented effectively from and be made because secondary power supply failure causes high-voltage switch gear normally to cut off electric network fault
Into major accident.
(3) being wirelessly transferred for power supply monitoring signal is realized with wireless transport module, it is not only easy for installation, save cable
Input cost, moreover, reducing signal by electromagnetic interference using being wirelessly transferred, it is ensured that the reliability of signal transmission.
Brief description of the drawings
Fig. 1 is the structural representation of electrical power monitoring device of the present invention.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings.
Electrical power monitoring device embodiment
The electrical power monitoring device, including central processing unit, data transmission module and dormancy awakening triggers circuit module；Its
In, the prison for receiving the electric current installed at monitored equipment power supply, voltage integrated transducer is provided with central processing unit
The electric current of survey, the signal input part of voltage signal.The central processing unit is long sleep block, in the electricity of monitored equipment power supply
In the case that stream, voltage signal information are without exception all the time in a dormant state, trigger and call out in the case of possible exception is monitored
Wake up.
Wherein, data transmission module is connected with the signal output part of the central processing unit；Dormancy awakening triggers circuit mould
Block is provided with the port for receiving the electric current installed at monitored equipment power supply, the detection signal of voltage integrated transducer,
The output end of dormancy awakening triggers circuit module is connected with the wake-up trigger end of the central processing unit, for electric current, voltage one
Triggering wakes up central processing unit when electric current, the voltage signal of the monitored equipment power supply that body Sensor monitoring is arrived are abnormal.Wirelessly
Transport module is connected with the signal output part of central processing unit, the characteristic value of the tested power supply arrived for transmission of monitoring, parameter number
According to etc..
As shown in figure 1, high-tension switch gear is electric current, electricity with the voltage x current acquisition module in power supply monitor controller
Integrated transducer is pressed, for gathering the first power supply of high-tension switch gear and electric current, the voltage signal of second source.
As a kind of specific embodiment, in electrical power monitoring device, central processing unit uses single-chip microcomputer, to receiving
Electric current, voltage signal data information handled, stored and transmitted, and send alarm when electric current, voltage signal are abnormal.
The port for the detection signal that above-mentioned dormancy awakening triggers circuit module is set connects 2 road electric currents, voltage integration
Sensor, be in order to ensure triggering uniformity and validity.
Above-mentioned electrical power monitoring device also include control power supply switch circuit module, control power supply switch circuit module one end with
The output end of central processing unit is connected, and the other end is connected with the first power supply, the second source of high-tension switch gear respectively, centre
Electric current, voltage signal of the device according to two power supplys collected are managed, analysis electric current, voltage peak, width are calculated by embedded software
It is worth deviation, ripple factor and power consumption, and by comparing the duplex feeding power supply of the power supply of high-tension switch gear first and second source
Quality controls the automatic switchover of two power supplys.When central processing unit monitors the electric current gathered, voltage signal exception and is less than
When 60%, you can automatically switch to battery-powered circuit module and be powered for device.
Above-mentioned electrical power monitoring device also includes battery-powered circuit module, and it is connected with center processing, is power supply monitoring dress
Put power supply.
The working power of device in the present embodiment is powered by battery-powered circuit module, i.e., can reduce power line
Influence of the electromagnetic interference of coupling to sensor.
Above-mentioned electrical power monitoring device also includes serial communication modular, one end of the serial communication modular and single-chip microcomputer
A port is connected, and the other end of serial communication modular is used to input control parameter.Before monitoring device work starts, use
PC inputs control parameter by the serial communication modular to single-chip microcomputer, mainly including activation threshold value, sample rate etc., and passes through
Serial ports, can input normalized current, voltage waveform, be stored in device, can be contrasted with the data waveform collected, analysis is adopted
The waveform collected is with the presence or absence of abnormal.
To reduce the installation in the monitoring device in the interference that data-signal is suffered in transmitting procedure, the present embodiment
Corresponding wireless communication module, such as SIM card, for 4G communications.By means of 4G technologies, data can be realized by mobile client
Real time remote interaction, conveniently realize it is real-time to equipment state monitoring and analysis judge, provided for Diagnostic Examination And Repair of Electric Power Facilities
Strong technical support.This patent wireless communication module be not only limited to 4G communication, can also use ZigBee, WiFi and 4G with
First-class communication mode., can be by receiving terminal to the corresponding operation code of device transmission in device normal course of operation, inquiry divides
Combined floodgate information, device also has self-checking function, when a failure occurs, actively can report and submit fault message to receiving terminal.
In monitoring process, dormancy awakening triggers circuit module one end is connected at the first power supply and at second source respectively
Electric current, voltage integrated transducer, other end connection central processing unit, resting state or normal work are switched to for control device
Make state, when high-tension switch gear is without work, make device in a dormant state, device is in low power consumpting state, can lead to
Cross mobile terminal corresponding operation code is sent to it and inquire about its working condition, inner parameter and the information of storage, when being grasped
When making, by wake-up trigger circuit, device is switched to normal operating conditions, start collection electric current, voltage signal.Using dormancy
Wake-up trigger circuit can make monitoring device enter low power consumpting state in the case of without power consumption, save electric energy.
Further, since sensor is output as analog quantity, it is impossible to be delivered directly to central processing unit, the monitoring device also includes
One A/D modular converter.The analog quantity information collected is connected by the A/D modular converters with processor module, for that will adopt
The analogue data collected is converted into digital quantity signal.If central processing unit itself carries A/D modules, A/D modular converters here
Can also be using the A/D modules carried inside central processing unit.
In order to eliminate noise signal, monitoring device also includes a filtering conditioning circuit module, and sensor passes through the filtering
Conditioning circuit module is connected with A/D modular converters.The analog signal of electric current, voltage integrated transducer at two power supplys is through filtering
After ripple modulate circuit, it is changed into data signal by A/D modular converters, and be sent to central processing unit.
Above-mentioned electrical power monitoring device also includes clock circuit module, and central processing unit is using SNTP, B code, IEEE1588 etc.
Pair when mode set time with time setting circuit module, central processing unit is reading ripple from clock circuit module read access time signal
Digital quantity signal is added into time tag after graphic data and is arranged and is analyzed, then, is deposited in data memory module, with
It is for future reference to ask.
This uses the voltage monitoring scope of power supply monitor controller：0~300V, current monitoring scope：0~100A.In dress
Put setting electric current, voltage monitoring gear, it is ensured that the degree of accuracy of monitoring.Device can both monitor dc source, can also monitor
AC power.In normal course of operation, current and history can be inquired about by receiving terminal to the corresponding operation code of device transmission
Power supply status.
Power supply monitoring control device in the present embodiment can be arranged on the primary cut-out of device in high-tension switch gear
In switch board or operating mechanism case.
High-tension switch gear embodiment with electrical power monitoring device
The high-tension switch gear, it includes high-tension switch gear body and is separately positioned on the electricity of high-tension switch gear first
Electric current, voltage integrated transducer at source and at second source；Electrical power monitoring device is provided with high-tension switch gear body,
The electrical power monitoring device includes central processing unit, data transmission module and dormancy awakening triggers circuit module.Due to being supervised in power supply
Survey structure and operation principle in device embodiment to electrical power monitoring device to be described in detail, repeat no more here.
In addition, in the high-tension switch gear, because the monitoring device and sensor element are arranged at high-voltage switch gear
In equipment, sensor element and the distance between the processor module in monitoring device are smaller, the high pressure collected in sensor
During switchgear power source features value, supplemental characteristic are transmitted to monitoring device, signal attenuation and by electromagnetic interference
Influence is smaller, improves the transmission reliability of data.
Specific embodiment is presented above, but the present invention is not limited to described embodiment.The base of the present invention
This thinking is above-mentioned basic scheme, for those of ordinary skill in the art, according to the teachings of the present invention, is not departing from this hair
The change, modification, replacement and the deformation that are carried out in the case of bright principle and spirit to embodiment still fall within the protection of the present invention
In the range of.
Claims (20)
1. a kind of electrical power monitoring device, it is characterised in that trigger electricity including central processing unit, data transmission module and dormancy awakening
Road module；
The central processing unit is to be provided with long sleep block, the central processing unit for receiving in monitored equipment power supply
Electric current that place is respectively mounted, the electric current of voltage integrated transducer, the signal input part of voltage signal；The data transmission module
It is connected with the signal output part of the central processing unit；
The dormancy awakening triggers circuit module is provided with for receiving the electric current installed at monitored equipment power supply, voltage one
Change the port of the detection signal of sensor, the output end of the dormancy awakening triggers circuit module and calling out for the central processing unit
Triggering end of waking up is connected, and the signal of the electric current of monitored equipment power supply, voltage is detected for electric current, voltage integrated transducer
Triggering wakes up the central processing unit during change.
2. electrical power monitoring device according to claim 1, it is characterised in that the monitoring device also includes control power supply and cut
Change circuit module；It is described control power supply switch circuit module one end be connected with the output end of central processing unit, the other end respectively with
The first power supply, the second source of monitored equipment are connected, when the first power supply of monitored equipment breaks down, the electricity detected
When stream, voltage signal are abnormal, for controlling the automatic switchover between the first power supply of monitored equipment and second source, the is realized
Two power supplys are powered for monitoring device.
3. electrical power monitoring device according to claim 1, it is characterised in that the data transmission module is to be wirelessly transferred mould
Block.
4. electrical power monitoring device according to claim 3, it is characterised in that the wireless transport module is 4G or more than 4G
Transport module.
5. electrical power monitoring device according to claim 1, it is characterised in that the central processing unit is single-chip microcomputer.
6. electrical power monitoring device according to claim 1, it is characterised in that the monitoring device also includes：Battery-powered
Circuit module, the battery-powered circuit module is connected with central processing unit.
7. electrical power monitoring device according to claim 1, it is characterised in that the monitoring device also includes：Serial communication
Module, one end of the serial communication modular is connected with the one of port of the central processing unit, and the other end, which is used to input, to be controlled
Parameter processed.
8. electrical power monitoring device according to claim 1, it is characterised in that the monitoring device also includes：Time setting circuit
Module and data memory module, the time setting circuit module and data memory module are connected with the central processing unit respectively；Institute
State central processing unit to set time with the time setting circuit module, time tag is added to electric current, voltage signal；The data
Memory module is used to store electric current, the voltage signal for adding time tag.
9. electrical power monitoring device according to claim 1, it is characterised in that the monitoring device also includes：A/D moduluss of conversion
Block, the central processing unit is by the A/D modular converters and is separately mounted at the first power supply of monitored equipment and second
Electric current, voltage integrated transducer at power supply are connected.
10. electrical power monitoring device according to claim 9, it is characterised in that the monitoring device also includes：Filtering conditioning
Circuit module, the A/D modular converters are by the filtering conditioning circuit module and are separately mounted to the first of monitored equipment
It is connected at power supply with the electric current at second source, voltage integrated transducer.
11. a kind of high-tension switch gear with electrical power monitoring device, including high-tension switch gear body and it is separately positioned on
Electric current, voltage integrated transducer at the power supply of high-tension switch gear first and at second source, it is characterised in that the high pressure
Be provided with electrical power monitoring device on switchgear body, the electrical power monitoring device include central processing unit, data transmission module and
Dormancy awakening triggers circuit module；
The central processing unit is to be provided with long sleep block, the central processing unit for receiving at monitored equipment power supply
Electric current, the electric current of voltage integrated transducer, the signal input part of voltage signal of installation；The data transmission module with it is described
The signal output part of central processing unit is connected；
The dormancy awakening triggers circuit module is provided with for receiving the electric current installed at monitored equipment power supply, voltage one
The port of the detection signal of body sensor, output end and the central processing unit of the dormancy awakening triggers circuit module
Wake-up trigger end is connected, and the electric current of high-tension switch gear power supply, voltage are detected for electric current, voltage integrated transducer
Triggering wakes up the central processing unit during signal intensity.
12. the high-tension switch gear according to claim 11 with electrical power monitoring device, it is characterised in that the monitoring
Device also includes：Control power supply switch circuit module, described control power supply switch circuit module one end and central processing unit it is defeated
Go out end to be connected, the other end is connected with the first power supply, the second source of high-tension switch gear respectively, when the first of high-tension switch gear
When power supply breaks down, when the electric current that detects, voltage signal are abnormal, the first power supply and for controlling high-tension switch gear
Automatic switchover between two power supplys, realizes that second source is powered for high-tension switch gear.
13. the high-tension switch gear according to claim 11 with electrical power monitoring device, it is characterised in that the data
Transport module is wireless transport module.
14. the high-tension switch gear according to claim 13 with electrical power monitoring device, it is characterised in that described wireless
Transport module is 4G or more than 4G transport module.
15. the high-tension switch gear according to claim 11 with electrical power monitoring device, it is characterised in that the center
Processor is single-chip microcomputer.
16. the high-tension switch gear according to claim 11 with electrical power monitoring device, it is characterised in that the monitoring
Device also includes：Battery-powered circuit module, the battery-powered circuit module is connected with central processing unit.
17. the high-tension switch gear according to claim 11 with electrical power monitoring device, it is characterised in that the monitoring
Device also includes：Serial communication modular, one end of the serial communication modular and the one of port phase of the central processing unit
Even, the other end is used to input control parameter.
18. the high-tension switch gear according to claim 11 with electrical power monitoring device, it is characterised in that the monitoring
Device also includes：Time setting circuit module and data memory module, the time setting circuit module and data memory module respectively with institute
Central processing unit is stated to be connected；The central processing unit is set time with the time setting circuit module, and time tag is added into electricity
Stream, voltage signal；The data memory module is used to store electric current, the voltage signal for adding time tag.
19. the high-tension switch gear according to claim 11 with electrical power monitoring device, it is characterised in that the monitoring
Device also includes：A/D modular converters, the central processing unit is by the A/D modular converters with being separately mounted to monitored set
It is connected at the first standby power supply with the electric current at second source, voltage integrated transducer.
20. the high-tension switch gear according to claim 19 with electrical power monitoring device, it is characterised in that the monitoring
Device also includes：Conditioning circuit module is filtered, the A/D modular converters are by the filtering conditioning circuit module with being respectively mounted
It is connected with the electric current at second source, voltage integrated transducer at the first power supply of monitored equipment.
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| CN201710178562.9A CN107121645A (en) | 2017-03-23 | 2017-03-23 | A kind of high-tension switch gear and electrical power monitoring device |
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| CN201710178562.9A CN107121645A (en) | 2017-03-23 | 2017-03-23 | A kind of high-tension switch gear and electrical power monitoring device |
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| CN109655645A (en) * | 2019-01-24 | 2019-04-19 | 山西晋缘电力化学清洗中心有限公司 | The pilot system of the dual-purpose high voltage power supply of AC and DC |
| CN110007176A (en) * | 2019-04-23 | 2019-07-12 | 成都绎码科技有限公司 | A kind of remote monitoring device and method of electrical equipment working condition |
| CN110007186A (en) * | 2019-04-23 | 2019-07-12 | 成都绎码科技有限公司 | A kind of detection of electrical leakage remote alarming device and method |
| CN111799873A (en) * | 2020-08-04 | 2020-10-20 | 南方电网科学研究院有限责任公司 | Low-power consumption control device and method of battery-powered sensor and terminal equipment |
| CN111929493A (en) * | 2020-08-24 | 2020-11-13 | 通号(北京)轨道工业集团有限公司轨道交通技术研究院 | Current acquisition equipment and circuit monitoring system |
| WO2020238090A1 (en) * | 2019-05-31 | 2020-12-03 | 苏州迅鹏仪器仪表有限公司 | Dc power supply smart integrated monitoring instrument |
| CN112034376A (en) * | 2020-08-24 | 2020-12-04 | Oppo广东移动通信有限公司 | Power management apparatus and method |
| CN113311257A (en) * | 2021-04-28 | 2021-08-27 | 航粤智能电气股份有限公司 | Comprehensive monitoring device for electric equipment |
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| CN110007186A (en) * | 2019-04-23 | 2019-07-12 | 成都绎码科技有限公司 | A kind of detection of electrical leakage remote alarming device and method |
| CN110007186B (en) * | 2019-04-23 | 2021-11-16 | 彭明 | Electric leakage detection remote alarm device and method |
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| CN111799873A (en) * | 2020-08-04 | 2020-10-20 | 南方电网科学研究院有限责任公司 | Low-power consumption control device and method of battery-powered sensor and terminal equipment |
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| CN111929493A (en) * | 2020-08-24 | 2020-11-13 | 通号(北京)轨道工业集团有限公司轨道交通技术研究院 | Current acquisition equipment and circuit monitoring system |
| CN111929493B (en) * | 2020-08-24 | 2023-08-08 | 北京铁路信号有限公司 | Current acquisition equipment and circuit monitoring system |
| CN112034376B (en) * | 2020-08-24 | 2023-08-29 | 哲库科技(北京)有限公司 | Power management apparatus and method |
| CN114495326A (en) * | 2020-11-12 | 2022-05-13 | 比亚迪半导体股份有限公司 | Control circuit and control method of fingerprint module and intelligent lock |
| CN114495326B (en) * | 2020-11-12 | 2024-02-20 | 比亚迪半导体股份有限公司 | Control circuit and control method of fingerprint module and intelligent lock |
| CN113311257A (en) * | 2021-04-28 | 2021-08-27 | 航粤智能电气股份有限公司 | Comprehensive monitoring device for electric equipment |
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