CN107748283A - A kind of micro energy lose electric energy meter metered voltage current monitoring alarm device and its monitoring method - Google Patents

A kind of micro energy lose electric energy meter metered voltage current monitoring alarm device and its monitoring method Download PDF

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Publication number
CN107748283A
CN107748283A CN201711125570.3A CN201711125570A CN107748283A CN 107748283 A CN107748283 A CN 107748283A CN 201711125570 A CN201711125570 A CN 201711125570A CN 107748283 A CN107748283 A CN 107748283A
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China
Prior art keywords
voltage
detection unit
current
circuit
electric energy
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CN201711125570.3A
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Inventor
申国华
罗兴春
陈建昆
杜娟
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Guizhou Power Grid Co Ltd
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Guizhou Power Grid Co Ltd
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Priority to CN201711125570.3A priority Critical patent/CN107748283A/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R11/00Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
    • G01R11/02Constructional details
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00Arrangements for measuring currents or voltages or for indicating presence or sign thereof

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Current Or Voltage (AREA)

Abstract

The invention discloses a kind of micro energy lose electric energy meter metered voltage current monitoring alarm device, including the under-voltage decompression detection unit of voltage circuit, current loop open circuit detection unit and alarm signal output unit, decompression detection unit that described voltage circuit is under-voltage, current loop open circuit detection unit and alarm signal output unit communicate to connect with master cpu;Metered voltage is detected by using voltage circuit under-voltage decompression detection unit, the purpose that metered voltage power consumption is small, voltage transformer secondary voltage drop is small is reached, current loop open circuit detection unit is added simultaneously, metering current loop is monitored in real time and sends alarm in real time and is transmitted, it is effective to ensure electric energy meter measuring accuracy, furthermore, alarm signal is sent to monitoring system and administrative staff in real time by alarm signal output unit, administrative staff effectively can carry out analysis judgement to alarm signal, it is ensured that the safety and stability of power equipment.

Description

A kind of micro energy lose electric energy meter metered voltage current monitoring alarm device and its monitoring method
Technical field
The present invention relates to power system transformer substation electric energy meter measurement loop monitoring technical field, more particularly to a kind of micro energy lose Electric energy meter metered voltage current monitoring alarm device and its monitoring method.
Background technology
For electric-power metering work, its accuracy is small, the vital interests to affect the livelihood of every family, then influences greatly The normal production of the industry departments such as work, agriculture, business, therefore electric-power metering accuracy and everyone, each enterprise are closely bound up, are electricity The important step of power work.
Electric energy meter metered voltage, the current loop monitoring method of current domestic transformer station are mainly done using miniature transformer Voltage acquisition, it is big to do the monitoring device metered voltage power consumption of voltage acquisition using miniature transformer, increases metered voltage Power consumption, cause secondary load overweight, voltage transformer secondary voltage drop increase, cause the few quantity calculation of electric energy meter, meanwhile, adopt The monitoring device for doing voltage acquisition with miniature transformer does not have current loop open circuit monitor alarm device, if metering current loop When the failures such as open circuit occur, it is impossible to which Real-time Alarm transmits, and causes the few quantity calculation of electric energy meter, damages current transformer and its correlation is set It is standby, it is therefore desirable on proposing a kind of micro energy lose electric energy meter metered voltage current monitoring alarm device and its monitoring method to solve State the problem of prior art is present.
The content of the invention
Present invention solves the technical problem that:There is provided a kind of micro energy lose electric energy meter metered voltage current monitoring alarm device and its Monitoring method, power consumption existing for miniature transformer collection voltages is used to solve existing metering collection monitoring device Greatly, the problem of secondary load is overweight, voltage transformer secondary voltage drop increases, while to solve existing metering collection monitoring dress Put and lack current loop open circuit monitor alarm device, it is impossible in real time the problem of monitoring current loop.
Technical scheme:
A kind of micro energy lose electric energy meter metered voltage current monitoring alarm device, including the under-voltage decompression detection unit of voltage circuit, electricity Road open circuit detection unit and alarm signal output unit is flowed back to, described voltage circuit is under-voltage decompression detection unit, current loop Detection unit of opening a way and alarm signal output unit communicate to connect with master cpu.
Decompression detection unit that described voltage circuit is under-voltage includes commutation diode, filter capacitor, dropping resistor, voltage and adjusted Economize on electricity resistance, divider resistance, protection diode and one-level photo-coupler, commutation diode are connected in parallel with filter capacitor, rectification two Pole pipe is connected in series with dropping resistor, voltage-regulation resistance and one-level photo-coupler, described one-level photo-coupler respectively with Divider resistance and protection diode are connected in parallel.
Described current loop open circuit detection unit includes Hall current sensor, interface circuit and digital analog converter, institute The Hall current sensor stated is connected with interface circuit, and interface circuit is connected with digital analog converter.
Described alarm signal output unit includes drive circuit, GPRS module, exit relay and monitoring system, described Drive circuit be connected with GPRS module and exit relay, described exit relay is connected with monitoring system.
A kind of micro energy lose electric energy meter metered voltage current monitoring alarm device, monitoring method comprise the following steps:
Step 1:The commutation diode collection metered voltage for decompression detection unit that voltage circuit is under-voltage;
Step 2:Direct current 0 is obtained to UNThe gauge check voltage of volt;
Step 3:Master cpu carries out under-voltage recognition detection;
Step 4:The Hall current sensor collection measurement loop line current and neutral line current of current loop open circuit detection unit are entered Row detection sampling, and export corresponding voltage signal;
Step 5:Analog voltage signal is transformed into digital voltage signal by digital analog converter;
Step 6:Master cpu carries out current loop open circuit recognition detection;
Step 7:Master cpu will alert voltage output to drive circuit;
Step 8:Drive circuit starts exit relay and GPRS module;
Step 9:GPRS module sends alarm signal to administrative staff, and exit relay, which transmits alarm signal to monitoring, is System.
Beneficial effects of the present invention:A kind of micro energy lose electric energy meter metered voltage current monitoring alarm device and its monitoring are provided Method, metered voltage is detected by using voltage circuit under-voltage decompression detection unit, has reached metered voltage power and has disappeared Purpose small, that voltage transformer secondary voltage drop is small is consumed, while adds current loop open circuit detection unit, in real time to metering Current loop is detected and sends alarm in real time and transmitted, effective to ensure electric energy meter measuring accuracy, effectively prevents Current Mutual Inductance Device and its relevant device damage, furthermore, alarm signal is sent to monitoring system and phase in real time by alarm signal output unit The administrative staff of pass, administrative staff effectively can carry out analysis judgement to alarm signal, it is ensured that the safety and stability of power equipment.
Brief description of the drawings
Fig. 1 is apparatus of the present invention structural representation;
Fig. 2 is the under-voltage decompression detection unit structural representation of voltage circuit of the present invention;
Fig. 3 is current loop of the present invention open circuit detection unit;
Fig. 4 is alarm signal output unit of the present invention;
Identified in figure:1st, commutation diode, 2, filter capacitor, 3, dropping resistor, 4, voltage-regulation resistance, 5, divider resistance, 6, Protection diode, 7, one-level photo-coupler, 8, Hall current sensor, 9, interface circuit, 10, digital analog converter, 11, driving electricity Road, 12, exit relay, 13, GPRS module, 14, monitoring system.
Embodiment:
A kind of micro energy lose electric energy meter metered voltage current monitoring alarm device, including the under-voltage decompression detection unit of voltage circuit, electricity Road open circuit detection unit and alarm signal output unit is flowed back to, described voltage circuit is under-voltage decompression detection unit, current loop Detection unit of opening a way and alarm signal output unit communicate to connect with master cpu.
Decompression detection unit that described voltage circuit is under-voltage includes commutation diode 1, filter capacitor 2, dropping resistor 3, electricity Regulation resistance 4, divider resistance 5, protection diode 6 and one-level photo-coupler 7 are pressed, commutation diode 1 is in parallel with filter capacitor 2 to be connected Connect, commutation diode 1 is connected in series with dropping resistor 3, voltage-regulation resistance 4 and one-level photo-coupler 7, described one-level light Coupler 7 is connected in parallel with divider resistance 5 and protection diode 6 respectively, and one-level photo-coupler 7 has stronger antijamming capability And efficiency of transmission it is high the advantages of, it is ensured that the metering voltage signal detected is more accurate.
Described current loop open circuit detection unit includes Hall current sensor 8, interface circuit 9 and digital analog converter 10, described Hall current sensor 8 is connected with interface circuit 9, and interface circuit 9 is connected with digital analog converter 10, it is described suddenly Your sensor 8 has the advantages of higher detection sensitivity, stable temperature characterisitic and good anti-interference and low-power consumption, It ensure that measuring accuracy is more accurate.
Described alarm signal output unit includes drive circuit 11, GPRS module 13, exit relay 12 and monitoring system System 14, described drive circuit 11 is connected with GPRS module 13 and exit relay 12, described exit relay 12 and monitoring System 14 connects.
A kind of micro energy lose electric energy meter metered voltage current monitoring alarm device, monitoring method comprise the following steps:
Step 1:The commutation diode 1 for decompression detection unit that voltage circuit is under-voltage gathers metered voltage;
Step 2:Direct current 0 is obtained to UNThe gauge check voltage of volt:By rectification, filtering, decompression, pressure regulation, partial pressure, in one-level light The input of coupler 7 obtains the gauge check voltage that direct current 0 lies prostrate to UN;
Step 3:Master cpu carries out under-voltage recognition detection:By detecting voltage change monitoring and metering voltage circuit and one-level optocoupler The working condition of clutch 7, under-voltage recognition detection is carried out by CPU, judges whether voltage circuit breaks;
Step 4:The Hall current sensor 8 of current loop open circuit detection unit gathers measurement loop line current and neutral line current enters Row detection sampling, and export corresponding voltage signal;
Step 5:Analog voltage signal after amplification is converted to data signal by digital analog converter 10;
Step 6:Master cpu carries out current loop open circuit recognition detection;
Step 7:Master cpu will alert voltage output to drive circuit 11:By under-voltage or decompression, current loop open circuit, The signals such as device exception carry out calculating identification by master cpu, by master cpu alarm signal output end outputting alarm voltage, accuse Electric current is warned to drive circuit 11;
Step 8:Drive circuit 11 starts exit relay 12 and GPRS module 13;
Step 9:Alarm signal is sent to administrative staff, exit relay 12 and transmits alarm signal to monitoring by GPRS module 13 System 14.
By the application of micro energy lose electric energy meter metered voltage current monitoring alarm device and its monitoring method, by transformer station's electricity Energy table metered voltage, current loop access micro energy lose electric energy meter metered voltage, current monitoring alarm device are managed, in real time prison Input voltage, the current conditions of electric energy meter are surveyed, realize that under-voltage monitored electric energy meter metered voltage loop, phase shortage, current loop are opened The fault warning such as road function can remind monitoring personnel timely processing, can also pass through in computer supervisory control system Real-time Alarm GPRS module 13 is sent to related personnel's mobile phone or monitoring system 14, thus can effectively reduce because of electric energy meter metered voltage loop The failures such as under-voltage, phase shortage, current loop open circuit lack quantity calculation and cause the economic loss to power supply enterprise, improve business economic effect Benefit, there is extremely practical application value in power system transformer substation.

Claims (5)

1. a kind of micro energy lose electric energy meter metered voltage current monitoring alarm device, including the under-voltage decompression detection unit of voltage circuit, Current loop open circuit detection unit and alarm signal output unit, it is characterised in that:Decompression that described voltage circuit is under-voltage detects Unit, current loop open circuit detection unit and alarm signal output unit communicate to connect with master cpu.
A kind of 2. micro energy lose electric energy meter metered voltage current monitoring alarm device according to claim 1, it is characterised in that: Decompression detection unit that described voltage circuit is under-voltage includes commutation diode(1), filter capacitor(2), dropping resistor(3), voltage Regulation resistance(4), divider resistance(5), protection diode(6)With one-level photo-coupler(7), commutation diode(1)With filtered electrical Hold(2)It is connected in parallel, commutation diode(1)With dropping resistor(3), voltage-regulation resistance(4)And one-level photo-coupler(7)String Connection connection, described one-level photo-coupler(7)Respectively with divider resistance(5)And protection diode(6)It is connected in parallel.
A kind of 3. micro energy lose electric energy meter metered voltage current monitoring alarm device according to claim 1, it is characterised in that: Described current loop open circuit detection unit includes Hall current sensor(8), interface circuit(9)And digital analog converter(10), Described Hall current sensor(8)With interface circuit(9)Connection, interface circuit(9)With digital analog converter(10)Connection.
A kind of 4. micro energy lose electric energy meter metered voltage current monitoring alarm device according to claim 1, it is characterised in that: Described alarm signal output unit includes drive circuit(11), GPRS module(13), exit relay(12)And monitoring system (14), described drive circuit(11)With GPRS module(13)And exit relay(12)Connection, described exit relay (12)With monitoring system(14)Connection.
A kind of 5. micro energy lose electric energy meter metered voltage current monitoring alarm device, it is characterised in that:Monitoring method includes following step Suddenly:
Step 1:The commutation diode for decompression detection unit that voltage circuit is under-voltage(1)Gather metered voltage;
Step 2:Direct current 0 is obtained to UNThe gauge check voltage of volt;
Step 3:Master cpu carries out under-voltage recognition detection;
Step 4:The Hall current sensor of current loop open circuit detection unit(8)Gather measurement loop line current and neutral line current Detection sampling is carried out, and exports corresponding voltage signal;
Step 5:Digital analog converter(10)Analog voltage signal is transformed into digital voltage signal;
Step 6:Master cpu carries out current loop open circuit recognition detection;
Step 7:Master cpu will alert voltage output to drive circuit(11);
Step 8:Drive circuit(11)Start exit relay(12)And GPRS module(13);
Step 9:GPRS module(13)Alarm signal is sent to administrative staff, exit relay(12)By alarm signal transmit to Monitoring system(14).
CN201711125570.3A 2017-11-14 2017-11-14 A kind of micro energy lose electric energy meter metered voltage current monitoring alarm device and its monitoring method Pending CN107748283A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108427022A (en) * 2018-04-20 2018-08-21 苏州科技大学 The detuning protective device of high-pressure series Resonance Voltage Withstand Test
CN111060735A (en) * 2019-12-30 2020-04-24 重庆莱格特电气有限公司 Low-voltage intelligent measurement and control system and method
CN113447882A (en) * 2021-06-01 2021-09-28 国网河北省电力有限公司营销服务中心 Fault processing method based on electric energy meter, server and terminal
CN113933583A (en) * 2021-11-08 2022-01-14 国网天津市电力公司 Metering secondary voltage loop fault monitoring device

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2326964Y (en) * 1998-02-27 1999-06-30 张宏伟 Voltage-loss current-cut-off recorder
CN2562195Y (en) * 2002-04-22 2003-07-23 重庆龙源科技产业发展有限公司 Anomalous running measuring and recording instrument for intellectual network kilowatt meter
CN101776739A (en) * 2009-12-31 2010-07-14 深圳市科陆电子科技股份有限公司 Station failure automatic detection method for kilowatthour meter automatic calibration
CN201716409U (en) * 2010-07-15 2011-01-19 田卫华 On-site testing device for intelligent electric energy meter
CN204028213U (en) * 2014-05-15 2014-12-17 大唐黑龙江发电有限公司哈尔滨第一热电厂 A kind of 220kV power circuit gate energy meter decompression alarm loop
CN105182272A (en) * 2015-09-07 2015-12-23 海盐新跃电器有限公司 Electric energy meter current open circuit detection method with self-short-circuiting function
CN105182117A (en) * 2015-08-27 2015-12-23 广西电网有限责任公司电力科学研究院 DC integrated test platform
CN206575226U (en) * 2016-11-28 2017-10-20 深圳康普盾科技股份有限公司 Intelligent power distribution unit monitoring device
CN207380102U (en) * 2017-11-14 2018-05-18 贵州电网有限责任公司 A kind of micro energy lose electric energy meter metered voltage current monitoring alarm device

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2326964Y (en) * 1998-02-27 1999-06-30 张宏伟 Voltage-loss current-cut-off recorder
CN2562195Y (en) * 2002-04-22 2003-07-23 重庆龙源科技产业发展有限公司 Anomalous running measuring and recording instrument for intellectual network kilowatt meter
CN101776739A (en) * 2009-12-31 2010-07-14 深圳市科陆电子科技股份有限公司 Station failure automatic detection method for kilowatthour meter automatic calibration
CN201716409U (en) * 2010-07-15 2011-01-19 田卫华 On-site testing device for intelligent electric energy meter
CN204028213U (en) * 2014-05-15 2014-12-17 大唐黑龙江发电有限公司哈尔滨第一热电厂 A kind of 220kV power circuit gate energy meter decompression alarm loop
CN105182117A (en) * 2015-08-27 2015-12-23 广西电网有限责任公司电力科学研究院 DC integrated test platform
CN105182272A (en) * 2015-09-07 2015-12-23 海盐新跃电器有限公司 Electric energy meter current open circuit detection method with self-short-circuiting function
CN206575226U (en) * 2016-11-28 2017-10-20 深圳康普盾科技股份有限公司 Intelligent power distribution unit monitoring device
CN207380102U (en) * 2017-11-14 2018-05-18 贵州电网有限责任公司 A kind of micro energy lose electric energy meter metered voltage current monitoring alarm device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
王方: "现代机电设备安装调试、运行检测与故障诊断、维修管理实务全书 第2册", 31 October 2002, 金版电子出版公司, pages: 610 - 612 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108427022A (en) * 2018-04-20 2018-08-21 苏州科技大学 The detuning protective device of high-pressure series Resonance Voltage Withstand Test
CN111060735A (en) * 2019-12-30 2020-04-24 重庆莱格特电气有限公司 Low-voltage intelligent measurement and control system and method
CN113447882A (en) * 2021-06-01 2021-09-28 国网河北省电力有限公司营销服务中心 Fault processing method based on electric energy meter, server and terminal
CN113447882B (en) * 2021-06-01 2022-09-09 国网河北省电力有限公司营销服务中心 Fault processing method based on electric energy meter, server and terminal
CN113933583A (en) * 2021-11-08 2022-01-14 国网天津市电力公司 Metering secondary voltage loop fault monitoring device

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