CN207380102U - A kind of micro energy lose electric energy meter metered voltage current monitoring alarm device - Google Patents
A kind of micro energy lose electric energy meter metered voltage current monitoring alarm device Download PDFInfo
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- CN207380102U CN207380102U CN201721515979.1U CN201721515979U CN207380102U CN 207380102 U CN207380102 U CN 207380102U CN 201721515979 U CN201721515979 U CN 201721515979U CN 207380102 U CN207380102 U CN 207380102U
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Abstract
The utility model discloses a kind of micro energy lose electric energy meter metered voltage current monitoring alarm devices, 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 the voltage circuit is under-voltage, current loop open circuit detection unit and alarm signal output unit are communicated to connect with master cpu；Metered voltage is detected by using voltage circuit under-voltage decompression detection unit, achieve the purpose that metered voltage power consumption is small, voltage transformer secondary voltage drop is small, current loop open circuit detection unit is added simultaneously, metering current circuit 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 by alarm signal output unit by monitoring system and administrative staff in real time, administrative staff can effectively analyze and determine alarm signal, it is ensured that the safety and stability of power equipment.
Description
Technical field
The utility model is related to power system transformer substation electric energy meter measurement loop monitoring technical field more particularly to one kind are micro-
Power consumption electric energy meter metered voltage current monitoring alarm device.
Background technology
For electric-power metering work for, accuracy it is small, the vital interests to affect the livelihood of every family then influence 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.
The electric energy meter metered voltage of substation of the country, current loop monitoring method are mainly done using miniature transformer at present
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, electric energy meter is caused to lack quantity calculation, 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 circuit
Open circuit is when failures occur, it is impossible to which Real-time Alarm transmits, and electric energy meter is caused to lack quantity calculation, damages current transformer and its correlation is set
It is standby, it is therefore desirable to propose that a kind of micro energy lose electric energy meter metered voltage current monitoring alarm device is deposited to solve the above-mentioned prior art
The problem of.
Utility model content
The technical issues of the utility model solves：A kind of micro energy lose electric energy meter metered voltage current monitoring alarm dress is provided
It puts, it is big, secondary using power consumption existing for miniature transformer collection voltages to solve existing metering acquisition monitoring device
The problem of overload, voltage transformer secondary voltage drop increase, while lack to solve existing metering acquisition monitoring device
Current loop open circuit monitor alarm device, it is impossible in real time the problem of monitoring current circuit.
The technical solution of the utility model：
A kind of micro energy lose electric energy meter metered voltage current monitoring alarm device, it is single including the under-voltage decompression detection of voltage circuit
Member, current loop open circuit detection unit and alarm signal output unit, the voltage circuit is under-voltage decompression detection unit, electric current
Circuit open circuit detection unit and alarm signal output unit are communicated to connect with master cpu.
Decompression detection unit that the voltage circuit is under-voltage includes rectifier diode, filter capacitor, dropping resistor, voltage tune
Economize on electricity resistance, divider resistance, protection diode and level-one photo-coupler, rectifier diode are connected in parallel with filter capacitor, rectification two
Pole pipe is connected in series with dropping resistor, voltage regulation resistance and level-one photo-coupler, the level-one photo-coupler respectively with
Divider resistance and protection diode are connected in parallel.
The 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.
The alarm signal output unit includes driving circuit, GPRS module, exit relay and monitoring system, described
Driving circuit be connected with GPRS module and exit relay, the exit relay is connected with monitoring system.
The beneficial effects of the utility model：There is provided a kind of micro energy lose electric energy meter metered voltage current monitoring alarm device and its
Monitoring method is detected metered voltage by using the under-voltage decompression detection unit of voltage circuit, has reached metered voltage work(
The purpose that rate consumption is small, voltage transformer secondary voltage drop is small, while current loop open circuit detection unit is added, for right in real time
Metering current circuit is detected and sends alarm in real time and transmits, effective to ensure electric energy meter measuring accuracy, effectively prevents electric current
Mutual inductor and its relevant device damage, furthermore, alarm signal is sent to by monitoring system by alarm signal output unit in real time
And relevant administrative staff, administrative staff can effectively analyze and determine alarm signal, it is ensured that the safety of power equipment
Stablize.
Description of the drawings
Fig. 1 is the utility model apparatus structure schematic diagram；
Fig. 2 is the under-voltage decompression detection unit structure diagram of the utility model voltage circuit；
Fig. 3 is the utility model current loop open circuit detection unit structure diagram；
Fig. 4 is the utility model alarm signal output unit structure diagram；
It is identified in figure：1st, rectifier diode, 2, filter capacitor, 3, dropping resistor, 4, voltage regulation resistance, 5, partial pressure electricity
Resistance, 6, protection diode, 7, level-one photo-coupler, 8, Hall current sensor, 9, interface circuit, 10, digital analog converter, 11,
Driving circuit, 12, exit relay, 13, GPRS module, 14, monitoring system.
Specific embodiment：
A kind of micro energy lose electric energy meter metered voltage current monitoring alarm device, it is single including the under-voltage decompression detection of voltage circuit
Member, current loop open circuit detection unit and alarm signal output unit, the voltage circuit is under-voltage decompression detection unit, electric current
Circuit open circuit detection unit and alarm signal output unit are communicated to connect with master cpu.
Decompression detection unit that the voltage circuit is under-voltage includes rectifier diode 1, filter capacitor 2, dropping resistor 3, electricity
Regulation resistance 4, divider resistance 5, protection diode 6 and level-one photo-coupler 7 are pressed, rectifier diode 1 is in parallel with filter capacitor 2 even
It connects, rectifier diode 1 is connected in series with dropping resistor 3, voltage regulation resistance 4 and level-one photo-coupler 7, the level-one light
Coupler 7 is connected in parallel respectively with divider resistance 5 and protection diode 6, and level-one 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.
The current loop open circuit detection unit includes Hall current sensor 8, interface circuit 9 and digital analog converter
10, the 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
You have the advantages that higher detection sensitivity, the temperature characterisitic of stabilization and good anti-interference and low-power consumption by sensor 8,
Ensure that measuring accuracy is more accurate.
The alarm signal output unit includes driving circuit 11, GPRS module 13, exit relay 12 and monitoring system
System 14, the driving circuit 11 is connected with GPRS module 13 and exit relay 12, the 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 rectifier 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, one
The input terminal of grade photo-coupler 7 obtains the gauge check voltage that direct current 0 is lied prostrate to UN；
Step 3：Master cpu carries out under-voltage recognition detection：By detecting voltage change monitoring and metering voltage circuit and level-one
7 working condition of photo-coupler carries out under-voltage recognition detection 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 zero curve electricity
Stream is detected sampling, and exports corresponding voltage signal；
Step 5：Amplified analog voltage signal is converted to digital 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 driving circuit 11：By under-voltage or decompression, current loop open
The signals such as road, device be abnormal carry out calculating identification by master cpu, by master cpu alarm signal output terminal outputting alarm voltage,
Electric current is alerted to driving circuit 11；
Step 8：Driving circuit 11 starts exit relay 12 and GPRS module 13；
Step 9：Alarm signal is sent to administrative staff by GPRS module 13, and alarm signal is transmitted to by exit relay 12
Monitoring system 14.
By the application of micro energy lose electric energy meter metered voltage current monitoring alarm device and its monitoring method, by substation's electricity
Energy table metered voltage, current loop access micro energy lose electric energy meter metered voltage, current monitoring alarm device are managed, and are supervised in real time
Input voltage, the current conditions of electric energy meter are surveyed, realize that under-voltage monitored electric energy meter metered voltage circuit, phase shortage, current loop are opened
The fault warnings 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 circuit
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 has extremely practical application value in power system transformer substation.
Claims (4)
1. a kind of micro energy lose electric energy meter metered voltage current monitoring alarm device, it is characterised in that：Including the under-voltage mistake of voltage circuit
Press detection unit, current loop open circuit detection unit and alarm signal output unit, decompression that the voltage circuit is under-voltage detection
Unit, current loop open circuit detection unit and alarm signal output unit are communicated to connect with master cpu.
2. a kind of 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 the voltage circuit is under-voltage includes rectifier diode（1）, filter capacitor（2）, dropping resistor（3）, voltage
Regulation resistance（4）, divider resistance（5）, protection diode（6）With level-one photo-coupler（7）, rectifier diode（1）With filtered electrical
Hold（2）It is connected in parallel, rectifier diode（1）With dropping resistor（3）, voltage regulation resistance（4）And level-one photo-coupler（7）String
Connection connection, the level-one photo-coupler（7）Respectively with divider resistance（5）And protection diode（6）It is connected in parallel.
3. a kind of micro energy lose electric energy meter metered voltage current monitoring alarm device according to claim 1, it is characterised in that：
The current loop open circuit detection unit includes Hall current sensor（8）, interface circuit（9）And digital analog converter（10）,
The Hall current sensor（8）With interface circuit（9）Connection, interface circuit（9）With digital analog converter（10）Connection.
4. a kind of micro energy lose electric energy meter metered voltage current monitoring alarm device according to claim 1, it is characterised in that：
The alarm signal output unit includes driving circuit（11）, GPRS module（13）, exit relay（12）And monitoring system
（14）, the driving circuit（11）With GPRS module（13）And exit relay（12）Connection, the exit relay
（12）With monitoring system（14）Connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721515979.1U CN207380102U (en) | 2017-11-14 | 2017-11-14 | A kind of micro energy lose electric energy meter metered voltage current monitoring alarm device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721515979.1U CN207380102U (en) | 2017-11-14 | 2017-11-14 | A kind of micro energy lose electric energy meter metered voltage current monitoring alarm device |
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| Publication Number | Publication Date |
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| CN207380102U true CN207380102U (en) | 2018-05-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107748283A (en) * | 2017-11-14 | 2018-03-02 | 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 and its monitoring method |
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2017
- 2017-11-14 CN CN201721515979.1U patent/CN207380102U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107748283A (en) * | 2017-11-14 | 2018-03-02 | 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 and its monitoring method |
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