CN204103443U - Intelligent electric energy meter installs electric leakage over current protective device additional - Google Patents
Intelligent electric energy meter installs electric leakage over current protective device additional Download PDFInfo
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- CN204103443U CN204103443U CN201420429479.6U CN201420429479U CN204103443U CN 204103443 U CN204103443 U CN 204103443U CN 201420429479 U CN201420429479 U CN 201420429479U CN 204103443 U CN204103443 U CN 204103443U
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- 230000001681 protective effect Effects 0.000 title claims abstract description 12
- 230000005540 biological transmission Effects 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 abstract description 2
- 230000008569 process Effects 0.000 abstract description 2
- 230000005611 electricity Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
Abstract
Intelligent electric energy meter installs electric leakage over current protective device additional, relate to power equipment process and remould technical field, it is characterized in that: comprise power transmission module, power transmission module by connection to reaction module, also adjustment module is connected with between reaction module and power transmission module, described power transmission module comprises an intelligent kilowatt-hour meter, a relay K A is provided with in intelligent kilowatt-hour meter, intelligent kilowatt-hour meter is connected to in circuit by P2 nodal line and P4 nodal line, described reaction module comprises a zero-sequence transformer L, zero-sequence transformer L by connection on amplifier U1, resistance R1 and resistance R2 is provided with between zero-sequence transformer L and amplifier U1, amplifier U1 negative pole has been on streamline circle VS1 by connection, described adjustment module comprises a single-chip microcomputer Rn, single-chip microcomputer Rn by connection on bridge rectifier diode D1, one resistance R3 is installed between single-chip microcomputer Rn and bridge rectifier diode D1.The utility model circuit structure rationally, install simple, can automatically disconnect and closed circuit.
Description
Technical field:
The utility model relates to power equipment process and remould technical field, is specifically related to intelligent electric energy meter and installs electric leakage over current protective device additional.
Background technology:
Intelligent electric meter is the intelligent terminal of intelligent grid, it has not been traditional electric energy meter, intelligent electric meter is except possessing the function of measuring of traditional electric energy meter basic electricity amount, in order to adapt to intelligent grid and new forms of energy use it also there is the intelligentized function such as bidirectional data communication function, anti-stealing electricity function of two-way multiple rate function of measuring, user side controlling functions, plurality of data transmission modes, intelligent electric meter represents the developing direction of following energy-conserving intelligent electrical network end user intelligent terminal.
And when intelligent electric meter work often due to the situation such as line short, electric leakage; common intelligent electric meter be cannot be good carry out self-protection; can will burn by ammeter when there is the situation such as short circuit, electric leakage like this; so just cause great loss; staff also cannot repair as soon as possible, brings many unnecessary troubles.
Utility model content:
Technical problem to be solved in the utility model be to overcome existing technological deficiency provide a kind of circuit structure rationally, install simple, can automatically to disconnect and the intelligent electric energy meter of closed circuit installs electric leakage over current protective device additional.
Technical problem to be solved in the utility model adopts following technical scheme to realize:
Intelligent electric energy meter installs electric leakage over current protective device additional, it is characterized in that: comprise power transmission module, and power transmission module to reaction module, is also connected with adjustment module between reaction module and power transmission module by connection;
Described power transmission module comprises an intelligent kilowatt-hour meter, is provided with a relay K A in intelligent kilowatt-hour meter, and intelligent kilowatt-hour meter is connected to in circuit by P2 nodal line and P4 nodal line;
Described reaction module comprises a zero-sequence transformer L, and zero-sequence transformer L on amplifier U1, is provided with resistance R1 and resistance R2 by connection between zero-sequence transformer L and amplifier U1, and amplifier U1 negative pole has been on streamline circle VS1 by connection;
Described adjustment module comprises a single-chip microcomputer Rn, and single-chip microcomputer Rn on bridge rectifier diode D1, is provided with a resistance R3 by connection between single-chip microcomputer Rn and bridge rectifier diode D1;
Described zero-sequence transformer L is arranged on P2 nodal line and P4 nodal line, described overcurrent coil VS1 is connected on P4 nodal line, the positive pole of described amplifier U1 by connection on bridge rectifier diode D1, described single-chip microcomputer by connection on the relay K A in intelligent kilowatt-hour meter;
Described relay K A is 60A;
Described single-chip microcomputer Rn carries out both positive and negative polarity upset when voltage reaches 5V;
Described resistance R1 and resistance R2 are resistance in parallel.
The beneficial effects of the utility model are: the operation principle of electric leakage over current protective device: when user side occur electric leakage time zero-sequence transformer will generation current to amplifier; simultaneously amplifier can export a high level to single-chip microcomputer, and single-chip microcomputer disconnects exporting just lower negative 5v power supply user side dump to the built-in 60A relay of intelligent meter, relay.Single-chip microcomputer time delay, after 5 minutes, exports again as upper negative lower positive 5v power supply is to 60A relay, the closing of contact in relay is restored electricity.Again detect that leakage current can repeat above-mentioned action until user side handles electric leakage accident point well;
The design of this circuit: when user side releasing electric leakage and overcurrent accident point intelligent electric energy meter all can recover automatically in time delay.
Accompanying drawing illustrates:
Fig. 1 is circuit diagram of the present utility model.
Embodiment:
The technological means realized to make the utility model, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the utility model further.
As shown in Figure 1, intelligent electric energy meter installs electric leakage over current protective device additional, comprises power transmission module, and power transmission module to reaction module, is also connected with adjustment module between reaction module and power transmission module by connection;
Described power transmission module comprises an intelligent kilowatt-hour meter 1, and computerized electric watt hour 1 is provided with a relay K A in showing, and intelligent kilowatt-hour meter is connected to in circuit by P2 nodal line and P4 nodal line;
Described reaction module comprises a zero-sequence transformer L, and zero-sequence transformer L on amplifier U1, is provided with resistance R1 and resistance R2 by connection between zero-sequence transformer L and amplifier U1, and amplifier U1 negative pole has been on streamline circle VS1 by connection;
Described adjustment module comprises a single-chip microcomputer Rn, and single-chip microcomputer Rn on bridge rectifier diode D1, is provided with a resistance R3 by connection between single-chip microcomputer Rn and bridge rectifier diode D1;
Described zero-sequence transformer L is arranged on P2 nodal line and P4 nodal line, described overcurrent coil VS1 is connected on P4 nodal line, the positive pole of described amplifier U1 by connection on bridge rectifier diode D1, described single-chip microcomputer by connection to computerized electric watt hour 1 show in relay K A on;
Described relay K A is 60A;
Described single-chip microcomputer Rn carries out both positive and negative polarity upset when voltage reaches 5V;
Described resistance R1 and resistance R2 are resistance in parallel.
More than show and describe general principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (4)
1. intelligent electric energy meter installs electric leakage over current protective device additional, it is characterized in that: comprise power transmission module, and power transmission module to reaction module, is also connected with adjustment module between reaction module and power transmission module by connection;
Described power transmission module comprises an intelligent kilowatt-hour meter, is provided with a relay K A in intelligent kilowatt-hour meter, and intelligent kilowatt-hour meter is connected to in circuit by P2 nodal line and P4 nodal line;
Described reaction module comprises a zero-sequence transformer L, and zero-sequence transformer L on amplifier U1, is provided with resistance R1 and resistance R2 by connection between zero-sequence transformer L and amplifier U1, and amplifier U1 negative pole has been on streamline circle VS1 by connection;
Described adjustment module comprises a single-chip microcomputer Rn, and single-chip microcomputer Rn on bridge rectifier diode D1, is provided with a resistance R3 by connection between single-chip microcomputer Rn and bridge rectifier diode D1;
Described zero-sequence transformer L is arranged on P2 nodal line and P4 nodal line, described overcurrent coil VS1 is connected on P4 nodal line, the positive pole of described amplifier U1 by connection on bridge rectifier diode D1, described single-chip microcomputer by connection on the relay K A in intelligent kilowatt-hour meter.
2. intelligent electric energy meter according to claim 1 installs electric leakage over current protective device additional, it is characterized in that: described relay K A is 60A.
3. intelligent electric energy meter according to claim 1 installs electric leakage over current protective device additional, it is characterized in that: described single-chip microcomputer Rn carries out both positive and negative polarity upset when voltage reaches 5V.
4. intelligent electric energy meter according to claim 1 installs electric leakage over current protective device additional, it is characterized in that: described resistance R1 and resistance R2 are resistance in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420429479.6U CN204103443U (en) | 2014-07-31 | 2014-07-31 | Intelligent electric energy meter installs electric leakage over current protective device additional |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420429479.6U CN204103443U (en) | 2014-07-31 | 2014-07-31 | Intelligent electric energy meter installs electric leakage over current protective device additional |
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| Publication Number | Publication Date |
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| CN204103443U true CN204103443U (en) | 2015-01-14 |
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| CN201420429479.6U Active CN204103443U (en) | 2014-07-31 | 2014-07-31 | Intelligent electric energy meter installs electric leakage over current protective device additional |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104201642A (en) * | 2014-07-31 | 2014-12-10 | 国家电网公司 | Electric leakage overcurrent protection device with intelligent ammeter |
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2014
- 2014-07-31 CN CN201420429479.6U patent/CN204103443U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104201642A (en) * | 2014-07-31 | 2014-12-10 | 国家电网公司 | Electric leakage overcurrent protection device with intelligent ammeter |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhou Hongzhuan Inventor after: Huang Xuefu Inventor after: Song Yunyi Inventor after: Sun Yuwen Inventor after: Shang Xuelin Inventor before: Zhou Hongzhuan Inventor before: Huang Xuefu Inventor before: Song Yunyi Inventor before: Sun Yuwen Inventor before: Shang Xuelin |