CN206564457U - Intelligent multifunction earth leakage protective device - Google Patents
Intelligent multifunction earth leakage protective device Download PDFInfo
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- CN206564457U CN206564457U CN201720300136.3U CN201720300136U CN206564457U CN 206564457 U CN206564457 U CN 206564457U CN 201720300136 U CN201720300136 U CN 201720300136U CN 206564457 U CN206564457 U CN 206564457U
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Abstract
The utility model provides a kind of intelligent multifunction earth leakage protective device, including current transformer, ZCT, A/D converter, controller, relay, electric energy sampling module, power module, state indicator module, the wherein input connection of the output end of current transformer and A/D converter, the output end of zero sequence current mutual inductor and the input of A/D converter are connected, one output pin of controller is connected with relay, relay exports the powered configured information of intelligent multifunction earth leakage protective device, the output end of A/D converter and controller input pin are connected, electric energy sampling module sends Phototube Coupling signal to the A/D converter, controller exports the opening and closing state information of intelligent multifunction earth leakage protective device to state indicator module in real time, power module exports electric energy to intelligent multifunction earth leakage protective device.The intelligent multifunction earth leakage protective device has multifunctional electric leakage defencive function, makes creepage protection function relatively reliable and safe.
Description
Technical field
The utility model is related to the technical field of earth leakage protective device, leaks electricity and protects more particularly, to a kind of intelligent multifunction
Protection unit.
Background technology
Earth leakage protective device is for preventing the person gets an electric shock and leaked electricity from causing a kind of earth protective device of accident, working as circuit
Or electrical equipment leakage current is more than the setting valve of device, or when people, animal generation Danger Electric shock risk, earth leakage protective device can be rapid
Action, cuts off emergency power supply, it is to avoid the expansion of accident, has ensured the person, the safety of equipment.Therefore, earth leakage circuit-breaker is being just
It is really the major technique and control measures for doing safety utilization of electric power well from being worked with maintenance management.
Reference picture 1, when occurring electric leakage or someone's electric shock by protection circuit, due to leakage current I0 presence, by Kiel
Hoff's law understands to pass through the phasor of each phase current of the primary side of zero sequence current mutual inductor 15 and is no longer equal to zero, generates electric leakage electricity
Stream, alternating flux is occurred in that in iron core, alternating flux effect under the second siding ring of main switch shunt release coil 16 just
There is induced electromotive force generation, this electric leakage signal is handled and compared through intermediate link, main switch point is made when reaching predetermined value
The energization driving main switch automatic trip of trip coil 16 is encouraged, disengagement failure circuit is so as to realize protection.
So existing earth leakage protective device does not claim intelligent electric leakage protection device on the market, function is single, works as power switch
During combined floodgate power transmission, impact signal can be produced and cause earth leakage protective device malfunction, occurred phase shortage when three-phase occurs in power end and be just
The power supply phase of earth leakage protective device, earth leakage protective device will fail, and without the powered instruction of output end, experiment method can only be by artificial regular
Complete, it is impossible to self-inspection, much without communication interface.
The content of the invention
The problem of in order to solve above-mentioned, main purpose of the present utility model is to provide a kind of intelligent multifunction earth leakage protective
Device.
To realize above-mentioned main purpose, a kind of intelligent multifunction earth leakage protective device that the utility model is provided, bag
Current transformer, ZCT, A/D converter, controller, relay, electric energy sampling module, power module, state is included to refer to
Show module, wherein the input connection of the output end of current transformer and A/D converter, the output end of zero sequence current mutual inductor with
The input connection of A/D converter a, output pin of controller is connected with relay, the output end of A/D converter and control
The input pin connection of device processed, electric energy sampling module sends Phototube Coupling signal to the A/D converter, and controller is to shape
State indicating module exports the opening and closing state information of intelligent multifunction earth leakage protective device in real time, and power module is to intelligent more
Function earth leakage protective device exports electric energy.
Further scheme is that controller is MCU controllers.
Further scheme is, A/D converters are sampled Phototube Coupling signal and by the analog signal after sampling
It is converted into data signal and sends to MCU controllers.
Further scheme is that MCU controllers send Phototube Coupling signal to relay.
Further scheme is that power module includes backup auto-activating device and power supply energy-storage module, power supply energy-storage module hair
Electric signals are to backup auto-activating device.
Further scheme is, state indicating device includes direction board and indicator lamp, direction board and indicator lamp respectively with
The output pin connection of controller.
Further scheme is that the pin of MCU controllers is connected with 485 communication interfaces and Passive Shape Control.
Further scheme is that intelligent multifunction earth leakage protective device also includes 485 communication interfaces and Passive Shape Control
Interface, MCU controllers, which are sent, indicates control signal to powered indicating module.
Further scheme is that intelligent multifunction earth leakage protective device also includes sound and light alarm module, MCU controllers
Alarm control signal is sent to sound and light alarm module.
Therefore, pass through the setting and the design of each module of each circuit and each circuit element, the utility model electric leakage
Protection device can be to leakage current accurate sampling and calculating, the quality of power supply is monitored in real time, when the quality of power supply is asked
Intelligent multifunction earth leakage protective device can make the action such as separating brake, alarm during topic, realize intelligent multifunction earth leakage protective
Each state of the operation of device and the teletransmission of data, operation and long-range app operations, direction board and indicator lamp two ways realize intelligence
The simultaneous display of energy type Multifunctional earth-leakage protective equipment opening and closing state, realizes intelligent multifunction earth leakage protective device output end
Powered instruction, realize intelligent multifunction earth leakage protective device to short circuit, overload real time protection, realize earth leakage protective
Function from experiment, from effect, make creepage protection function relatively reliable, realize that intelligent multifunction earth leakage protective device powers three
Still played a protective role during phase phase shortage, realize long-range divide-shut brake and rationally delay divide-shut brake.
Brief description of the drawings
Fig. 1 is the structural representation of current existing earth leakage protective device.
Fig. 2 is the theory diagram of the utility model intelligent multifunction earth leakage protective device embodiment.
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Embodiment
Reference picture 2, the intelligent multifunction earth leakage protective device that the utility model is provided includes current transformer 20, zero sequence
Transformer 10, A/D converter 40, MCU controllers 50, relay 30, electric energy sampling module 60, power module 83, state instruction
Module 32, wherein current transformer 20 are A/B/C threephase current transformers, and its output end and the input of A/D converter 40 connect
Connect, the output end of ZCT 10 is connected with the input of A/D converter 40, an output pin of MCU controllers 50 with
Relay 30 is connected, and its repeat circuit 30 is A/B/C three-phase break-make relays, and output end and the MCU of A/D converter 40 are controlled
The input pin connection of device 50, electric energy sampling module 60 sends Phototube Coupling signal to A/D converter 61, MCU controllers
50 export the opening and closing state information of intelligent multifunction earth leakage protective device, power module 83 to state indicator module 32 in real time
Electric signal is sent to intelligent multifunction earth leakage protective device.
In the present embodiment, the utility model earth leakage protective device passes through ZCT 10, current transformer 20 and electric energy
60 pairs of each analog quantitys of sampling module are sampled, and are changed after being handled through links such as detection, filtering, amplifications by high-precision A/D
All analog quantitys are converted into digital quantity by device 40, are analyzed, calculated by MCU controllers 50, compared etc. and making corresponding again
Processing is acted.User can be by operating key-press module 52 and user to set window module 51 to be actually needed progress according to oneself
Rational parameter setting.
In the present embodiment, the current transformer 20 that the utility model earth leakage protective device is set is high sensitivity residual current
Transformer, for being monitored in real time to leakage current, and by being incited somebody to action after filtering and amplification by high-precision A/D converter 40
The current signal digitlization gathered, and residual current is monitored with certain data sampling frequency, pass through excellent calculation
Method accurately calculates the virtual value of the leakage current of quantization, prevents the mistake that the analog quantity used in present earth leakage protective device compares control
Report and do not report.
In the present embodiment, in state indicator module 32, realized by direction board and indicator lamp two ways intelligent many
The simultaneous display of function earth leakage protective device opening and closing state.The utility model is synchronously referred to using mechanical direction board and indicator lamp
Show, accordingly even when being still it is known that the opening and closing state of the earth leakage protective device, is greatly carried in the case of not powering
The security that high device is used.
In the present embodiment, electric energy sampling module 60 is first sampled to the quality of power supply, is then filled respectively by Phototube Coupling
Phototube Coupling signal is sent after putting 61 and being filtered by wave filter 62 to A/D converter 40, A/D converters 40 by photoelectricity every
Sampled from signal and the analog signal after sampling is converted into data signal and sent to MCU controllers 50, to electric energy matter
Amount carries out sampling monitoring.The quality of power supply in distribution environment in the present embodiment to assembling the earth leakage protective device, including it is under-voltage
Overvoltage, phase shortage, frequency departure, three-phase imbalance, phase difference etc. are monitored in real time, sound and light alarm module 53 include LED and
Buzzer, when electric energy occurs that the situation of failure or accident can be caused, MCU controllers 50 by the second controlling organization 55, to point
Combined floodgate module 31 sends a control signal, so as to realize long-range divide-shut brake and rationally delay divide-shut brake, and pass through acousto-optic report
Alert module 53 carries out the action such as sound and light alarm.
In the present embodiment, Phototube Coupling band telecommunications is passed through in the output end lead-out wire of intelligent multifunction earth leakage protective device
Number input be MCU controllers 50, MCU controllers 50 by the first controlling organization 54 to relay 30 send a control signal,
Relay 30 plays a protective role.Powered indicating module 63 includes LED, and MCU controllers 50 are sent to powered indicating module 63
Control signal is indicated, it is achieved thereby that the powered instruction function of the output end of MCU controllers 50, when separating brake failure occurs in switch contact
When earth leakage protective device lower end it is still powered, this serious life security for endangering staff, in the utility model
Powered instruction function just provides safety instruction for staff very well.
In the present embodiment, the power module 83 that the utility model is set includes backup auto-activating device 80, power supply energy-storage module 81,
Powered by the way of single-phase pair of prepared auto restart to the earth leakage protective device, when there is phase shortage in supply side, the earth leakage protective device
Will be from there is electric phase power taking, even if supply side has a power failure, the power supply energy-storage module 81 of the earth leakage protective device can also be the electric leakage
Protection device provides the power supply of 24 hours, therefore the utility model provides and powers three in intelligent multifunction earth leakage protective device
Still play a part of protection during phase phase shortage, single-phase, two-phase, three are used in terms of the power supply of existing protector or relay
The mode of phase power when power phase shortage when protector just lose defencive function, be that this present embodiment can be distribution line
More structurally sound safeguard protection is provided.
In the present embodiment, the pin of MCU controllers 50 is connected with 485 data-interfaces 70 and Passive Shape Control interface 72 respectively,
The parameters and status data of the earth leakage protective device can be realized to telecommunication, and devise WIFI module and realize dress
The Internet of Things put, user can complete checking for real time data by computer, flat board, smart mobile phone and browse, and electric leakage is protected
The remote control of protection unit.
In the present embodiment, the utility model devise it is a set of perfect periodically from experiment, from checking system, will be traditional every
The work that the moon is artificially tested is completed by MCU controllers 50, and such design can shorten experimental period, can be with presence
Realize it is non-shut-brake in the case of complete experiment, realize creepage protection function from experiment and from effect, make creepage protection function more
Plus it is reliable.
Finally it is emphasized that the foregoing is only preferred embodiment of the present utility model, this reality is not limited to
With new, for those skilled in the art, the utility model can have various change and change, all in the utility model
Spirit and principle within, any modification, equivalent substitution and improvements done etc. should be included in protection model of the present utility model
Within enclosing.
Claims (9)
1. intelligent multifunction earth leakage protective device, it is characterised in that including current transformer, ZCT, A/D conversions
Device, controller, relay, electric energy sampling module, power module, state indicator module, the output end of the current transformer with
The input connection of the A/D converter, the output end of the ZCT is connected with the input of the A/D converter,
One output pin of the controller is connected with the relay, the output end of the A/D converter and the controller
One input pin connection, the electric energy sampling module sends Phototube Coupling signal to the A/D converter, the controller to
The state indicator module exports the opening and closing state information of the intelligent multifunction earth leakage protective device, the power supply in real time
Module exports electric energy to the intelligent multifunction earth leakage protective device.
2. earth leakage protective device according to claim 1, it is characterised in that：
The controller is MCU controllers.
3. earth leakage protective device according to claim 1, it is characterised in that：
The Phototube Coupling signal is sampled and the analog signal after sampling is converted into data signal by the A/D converters
And send to the MCU controllers.
4. the earth leakage protective device according to Claims 2 or 3, it is characterised in that：
The MCU controllers send the Phototube Coupling signal to the relay.
5. earth leakage protective device according to claim 1, it is characterised in that：
The power module includes backup auto-activating device and power supply energy-storage module, and the power supply energy-storage module sends electric signal to for certainly
Throw device.
6. the earth leakage protective device according to any one of claims 1 to 3, it is characterised in that：
The state indicating device includes direction board and indicator lamp, and the direction board and the indicator lamp are defeated with controller respectively
Go out pin connection.
7. earth leakage protective device according to claim 2, it is characterised in that：
The intelligent multifunction earth leakage protective device also includes 485 communication interfaces and Passive Shape Control interface, the MCU controllers
Pin be connected respectively with 485 communication interfaces and Passive Shape Control interface.
8. earth leakage protective device according to claim 2, it is characterised in that：
The intelligent multifunction earth leakage protective device also includes powered indicating module, and the MCU controllers, which are sent, indicates control
Signal is to powered indicating module.
9. earth leakage protective device according to claim 2, it is characterised in that：
The intelligent multifunction earth leakage protective device also includes sound and light alarm module, and the MCU controllers send controlling alarm
Signal is to sound and light alarm module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720300136.3U CN206564457U (en) | 2017-03-24 | 2017-03-24 | Intelligent multifunction earth leakage protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720300136.3U CN206564457U (en) | 2017-03-24 | 2017-03-24 | Intelligent multifunction earth leakage protective device |
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| CN206564457U true CN206564457U (en) | 2017-10-17 |
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| CN201720300136.3U Active CN206564457U (en) | 2017-03-24 | 2017-03-24 | Intelligent multifunction earth leakage protective device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111884170A (en) * | 2020-08-20 | 2020-11-03 | 广东亚电科技有限公司 | Intelligent safety power consumption protection device |
-
2017
- 2017-03-24 CN CN201720300136.3U patent/CN206564457U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111884170A (en) * | 2020-08-20 | 2020-11-03 | 广东亚电科技有限公司 | Intelligent safety power consumption protection device |
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