CN201656420U - Three-phase auto reclosing electricity leakage protection switch - Google Patents
Three-phase auto reclosing electricity leakage protection switch Download PDFInfo
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- CN201656420U CN201656420U CN2009202960556U CN200920296055U CN201656420U CN 201656420 U CN201656420 U CN 201656420U CN 2009202960556 U CN2009202960556 U CN 2009202960556U CN 200920296055 U CN200920296055 U CN 200920296055U CN 201656420 U CN201656420 U CN 201656420U
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Abstract
The utility model relates to a three-phase auto reclosing electricity leakage protection switch, which comprises a micro-control system module, a voltage detection module, a current detection module, an electricity leakage detection module, a relay driving module, a communication module and an electricity supply switch power supply module, wherein the voltage detection module, the current detection module, the electricity leakage detection module, the relay driving module, the communication module and the electricity supply switch power supply module are respectively connected with the micro-control system module, and the relay driving module drives a relay switch connected in series in a three-phase circuit to be switched off or switched on. The utility model belongs to a protector for main electric faults such as the overvoltage fault, the under voltage fault, the overcurrent/short circuit fault, the electricity leakage fault and the like. Importantly, the utility model has the fault identification function, and can automatically recover the electricity supply after electricity leakage tripping, so the maintenance cost can be reduced, and the safety and the stability of electricity use can be greatly improved.
Description
Technical field:
The utility model relates to a kind of three-phase automatic reclosing earth leakage circuit-breaker, is a kind of protective device with main electric fault such as overvoltage, under voltage, overcurrent/short circuit, electric leakage.
Background technology:
Much be installed in outdoor power consumption equipment, because distribute wide, poor working environment have been brought a series of problem thus.The most outstanding characteristics are safe power supply problems, and according to the requirement of relevant department, all are equipped with outdoor power consumption equipment all should install earth leakage circuit-breaker.No matter in summer or winter, often because of produce, household electricity excessively causes voltage/current very big, the electromagnetic interference etc. that rises and falls, and causes air switch, leakage switch tripping operation.Especially at thunderstorm weather, leakage switch very easily is subjected to effects of lightning.According to investigations, in the leakage switch tripping operation of the outdoor power consumption equipment of the about 20%-30% of weather of a thunderstorm, what the area that has was the most serious surpasses 50%, makes large tracts of land outdoor equipment interruption of work.Simultaneously, also because of awful weather, restorer work in time brings bigger economic loss to national economy.In fact, and these tripping operations only need simple manual closing operation, just can restorer work.But, need manually to close a floodgate one by one owing to not closing a floodgate again automatically after air switch, the leakage switch tripping operation; Add that device distribution is too wide, number is too many, the mains switch that a lot of in addition equipment are installed in the field, wilderness, have is locked in residential dormitory, the unit compound, and giving resumes work brings great difficulty and maintenance workload.
Summary of the invention:
The purpose of this utility model is exactly the defective that overcomes prior art, proposes a kind of three-phase automatic reclosing earth leakage circuit-breaker, and the energy automatic recovery of power supply reduces maintenance cost after the leakage tripping.
For achieving the above object; a kind of three-phase automatic reclosing earth leakage circuit-breaker of the utility model; comprise the micro-controller system module; the voltage detection module that is connected with the micro-controller system module, current detection module, detection of electrical leakage module, relay driving module, communication module and power switch power module respectively, relay driving module drive the relay switch tripping operation that is connected in the three-phase line or close a floodgate.
Above-mentioned micro-controller system module comprises single-chip microcomputer, the preferred ATmage128 chip of single-chip microcomputer.
The utility model is owing to adopt the micro-controller system module, by overvoltage, the under voltage detection signal of micro-controller system module to collecting, overcurrent, short-circuit detection signal, the detection of electrical leakage signal is analyzed and is handled, and realizes automatic trip and automatic closing by control relay.When fault occurred, automatic trip was protected load; When fault was got rid of, automatic closing maintained easily.
Description of drawings:
Fig. 1 is a circuit block diagram of the present utility model.
Embodiment:
The CONSTRUCTED SPECIFICATION of the utility model embodiment is described in detail in detail below in conjunction with accompanying drawing:
As shown in Figure 1, the utility model comprises the micro-controller system module, the voltage detection module that is connected with the micro-controller system module, current detection module, detection of electrical leakage module, relay driving module, communication module and power switch power module respectively, relay driving module drive the relay switch tripping operation that is connected in the three-phase line or close a floodgate.
Switch power module is powered by outside A phase power line, converts 12 volts and 5 volts of power supplys to 220 volts, gives relay driving module and the work of micro-controller system module power supply respectively.
Voltage detection module detects overvoltage and under voltage, and current detection module detects overcurrent and short circuit, and the detection of electrical leakage module detects the circuit leaky, and above-mentioned detection signal is delivered to the micro-controller system module.
The micro-controller system module comprises single-chip microcomputer, and single-chip microcomputer adopts the ATmage128 chip, carries out the analysis and the processing of acquired signal, realizes automatic trip and automatic closing by control relay,
Communication module comprises the max232 chip, the micro-controller system module can be passed through the max232 communication module, be connected with supporting hand-hold type parameter setting apparatus, carry out the on-line parameter setting and show related electric fault parameters such as the utility model overvoltage, under voltage, overcurrent/short circuit, electric leakage.Communication module comprises the RS232/RS485 interface module, changes ethernet module by serial ports and realizes the utility model remote monitoring.
The utility model also is provided with the status indicator lamp of the indication fault that is connected with the micro-controller system module.
Before the MCU Single-chip Controlling main switch closure by the micro-controller system module, supply power voltage, equipment electric leakage or load short circuits fault are detected.In running, can follow the tracks of detection to faults such as supply power voltage and overload, short circuit, electric leakages, when breaking down, send instruction in time to cut off the electricity supply, make electricity consumption safer reliable; One group of status indicator lamp by setting up shows failure condition, for line maintenance is provided convenience simultaneously.
Relay adopts magnetic latching relay.It is actually a kind of " automatic switch " that removes to control big electric current with less current.In circuit, play effects such as automatic adjusting, safeguard protection, change-over circuit,, make the electrical equipment of controlled output circuit conducting or disconnection when input variable (as voltage, electric current etc.) when reaching setting.Advantage such as have that action is fast, working stability, long service life, volume are little.Defencive function with main electric fault such as overvoltage, under voltage, overcurrent/short circuit, electric leakage; occurring under the situation of abnormal electrical power supply; can in 0.05 second, cut off the electricity supply rapidly; can avoid accident to take place; guaranteed property and personal safety, faster more than 10 times than general air switch or fuse.
The utility model is applicable to and exchanges 50Hz, rated operational voltage 230V (or 400V), and rated current is used as protection and automatic reclosing functions such as circuit and power-supply device overload, short circuit, electric leakage, overvoltage, under voltage to the circuit of 250A.The utility model can be cut off the electricity supply rapidly in 0.05 second under the situation of electric leakage or short circuit, can avoid accident to take place, and had guaranteed property and personal safety, and is faster more than 10 times than general air switch or fuse.Have " detecting before closing a floodgate " function,, do not allow to close a floodgate, before accident takes place, stoped the generation of accident when supply power voltage unusual (overvoltage, low-voltage), when there is the situation of electric leakage or short circuit in circuit.The automatic reclosing function that it has can guarantee the continuity of powering.
Particular content:
(1) short-circuit protection: circuit is short-circuited, if continue 0.5 second, can cause that circuit burns.If in 0.1 second, can cut off the electricity supply rapidly, can avoid accident to take place.During greater than 5 times of rated current, the automatic reclosing earth leakage circuit-breaker disconnected in 0.03 second the automatic reclosing earth leakage circuit-breaker, and is faster more than 10 times than general air switch or fuse at electric current.The fail safe of assurance equipment.
(2) earth leakage protective: when the electric leakage that the circuit generation is 15～30 milliamperes or the person got an electric shock, the automatic reclosing earth leakage circuit-breaker disconnected in 0.03 second, had guaranteed personal safety.
(3) overcurrent protection: if line load is overweight, electric wire seriously generates heat, probably initiation fire.When electric current during greater than 1.15 times of rated current, the automatic reclosing earth leakage circuit-breaker will be monitored the duration and the size of this electric current; If the duration surpasses 3 seconds, or during greater than 5 times of rated current, the automatic reclosing earth leakage circuit-breaker promptly disconnects implements protection.
(4) overvoltage protection: voltage is too high, and equipment is burnt out, and when supply power voltage was higher than 280 volts, the automatic reclosing earth leakage circuit-breaker disconnected.After voltage drop is returned normally, the energising of automatic reclosing earth leakage circuit-breaker automatic closing.
(5) under-voltage protection: voltage is too high no doubt dangerous, and brownout also causes the equipment Fraquent start easily, is directed at device damage, and when supply power voltage was lower than 100 volts, the automatic reclosing earth leakage circuit-breaker disconnected.Automatic reclosing earth leakage circuit-breaker automatic closing energising after voltage gos up normally.
Automatic disconnection when (6) cutting off the power supply: when circuit cuts off the power supply, automatic disconnection input and outlet line.When having avoided sending a telegram here again, because power supply is undesired, the situation that electrical equipment is burnt takes place.When sending a telegram here again, if power supply is normal, then automatic closing energising.
(7) detect before closing a floodgate: the automatic reclosing earth leakage circuit-breaker detects circuit before combined floodgate, if supply power voltage unusual (too high, low excessively), when circuit exists electric leakage or short-circuit conditions, will block and close a floodgate and warning; User such as untimely repairing, fault are without eliminating, and the energising of then can't closing a floodgate has stoped the generation of accident before accident takes place.
(8) intelligence electric leakage identification: intelligent earth leakage circuit-breaker has intelligent identification technology, can discern various interference signals and electric leakage signal, can avoid the virtual leak electric tripping.
(9) automatic reclosing: moment electric leakage or moment impact (as thunder and lightning, socket arcing etc.) take place in circuit and when having danger, the automatic reclosing earth leakage circuit-breaker disconnects immediately; After the impact, safe if circuit remains, the energising of can closing a floodgate again automatically of automatic reclosing earth leakage circuit-breaker.Continuously behind the reclosing 3 times (time interval was respectively 30 seconds, 0.5 hour, 1 hour), the automatic reclosing earth leakage circuit-breaker will disconnect and report to the police." automatic reclosing " is the function that the automatic reclosing earth leakage circuit-breaker is set up, and reduced manual closing operation, guarantees the continuity of electricity consumption, improved operation ratio, makes the user convenient.
(10) timing and Long-distance Control: there is real-time clock inside, can realize time switch.Have the RS232/RS485 interface, conveniently link to each other, realize remote monitoring with remote supervisory and control(ling) equipment.
(11) fault alarm: when above-mentioned protection disconnected, different red leds were bright, indicate corresponding fault type.
The utlity model has the defencive function of main electric fault such as overvoltage, under voltage, overcurrent/short circuit, electric leakage, and have functions such as Fault Identification, faulty indication, the preceding voltage of combined floodgate/electric leakage/short-circuit detecting, fault detect, overload time-delay, automatic reclosing, remote monitoring, online modification parameter and software upgrading.The utlity model has all functions of existing earth leakage circuit-breaker/air switch, and introduced " automatic reclosing " function of large-scale professional equipment, also be greatly improved aspect performance and the reliability.
Claims (7)
1. three-phase automatic reclosing earth leakage circuit-breaker; it is characterized in that: comprise the micro-controller system module; the voltage detection module that is connected with the micro-controller system module, current detection module, detection of electrical leakage module, relay driving module, communication module and power switch power module respectively, relay driving module drive the relay switch tripping operation that is connected in the three-phase line or close a floodgate.
2. earth leakage circuit-breaker according to claim 1 is characterized in that: described micro-controller system module comprises single-chip microcomputer.
3. earth leakage circuit-breaker according to claim 2 is characterized in that: described single-chip microcomputer adopts the ATmage128 chip.
4. earth leakage circuit-breaker according to claim 1 is characterized in that: described communication module comprises the max232 chip.
5. earth leakage circuit-breaker according to claim 1 is characterized in that: described communication module comprises the RS232/RS485 interface module.
6. earth leakage circuit-breaker according to claim 1 is characterized in that: also be provided with the status indicator lamp that is connected with the micro-controller system module.
7. earth leakage circuit-breaker according to claim 1 is characterized in that: described relay adopts magnetic latching relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202960556U CN201656420U (en) | 2009-12-31 | 2009-12-31 | Three-phase auto reclosing electricity leakage protection switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202960556U CN201656420U (en) | 2009-12-31 | 2009-12-31 | Three-phase auto reclosing electricity leakage protection switch |
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| Publication Number | Publication Date |
|---|---|
| CN201656420U true CN201656420U (en) | 2010-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202960556U Expired - Fee Related CN201656420U (en) | 2009-12-31 | 2009-12-31 | Three-phase auto reclosing electricity leakage protection switch |
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| CN (1) | CN201656420U (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102122809A (en) * | 2011-03-30 | 2011-07-13 | 苏州工业园区非而智能电器有限公司 | Intelligent leakage controller system and selective locking method thereof |
| CN102157911A (en) * | 2011-03-30 | 2011-08-17 | 苏州工业园区非而智能电器有限公司 | Intelligent leakage controller system and selective reclosing method |
| CN102751140A (en) * | 2012-07-05 | 2012-10-24 | 同济大学 | Multifunctional switch apparatus with automatic reclosing function |
| CN106159873A (en) * | 2015-03-10 | 2016-11-23 | 江苏苏益电器股份有限公司 | A kind of condition for validity evaluator of residual current circuit breaker automatic reclosing |
| CN106207964A (en) * | 2016-08-04 | 2016-12-07 | 宋邦卓 | A kind of illuminating line protector based on leakage current vector transient detection |
| CN107069343A (en) * | 2017-03-30 | 2017-08-18 | 华映科技（集团）股份有限公司 | A kind of smart jack data collecting system and method based on many live wires |
| CN107093888A (en) * | 2017-05-10 | 2017-08-25 | 李亮棠 | Automatic reclosing protection switch with fire alarm defencive function |
| CN109238431A (en) * | 2018-09-14 | 2019-01-18 | 徐州恺尔电子设备有限公司 | A kind of anticreeper of electronic scale |
| CN109254223A (en) * | 2018-11-07 | 2019-01-22 | 深圳市众祥安全科技有限公司 | Leak electricity short-circuit detection method, open circuit protection equipment, monitoring center, system |
| CN110311348A (en) * | 2019-08-08 | 2019-10-08 | 广东电网有限责任公司 | Multifunctional protection device and ammeter box |
| CN113258667A (en) * | 2020-01-28 | 2021-08-13 | 西门子股份公司 | Remote drive, apparatus having the same, and method |
-
2009
- 2009-12-31 CN CN2009202960556U patent/CN201656420U/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102122809A (en) * | 2011-03-30 | 2011-07-13 | 苏州工业园区非而智能电器有限公司 | Intelligent leakage controller system and selective locking method thereof |
| CN102157911A (en) * | 2011-03-30 | 2011-08-17 | 苏州工业园区非而智能电器有限公司 | Intelligent leakage controller system and selective reclosing method |
| CN102751140A (en) * | 2012-07-05 | 2012-10-24 | 同济大学 | Multifunctional switch apparatus with automatic reclosing function |
| CN102751140B (en) * | 2012-07-05 | 2014-12-10 | 同济大学 | Multifunctional switch apparatus with automatic reclosing function |
| CN106159873A (en) * | 2015-03-10 | 2016-11-23 | 江苏苏益电器股份有限公司 | A kind of condition for validity evaluator of residual current circuit breaker automatic reclosing |
| CN106207964A (en) * | 2016-08-04 | 2016-12-07 | 宋邦卓 | A kind of illuminating line protector based on leakage current vector transient detection |
| CN107069343A (en) * | 2017-03-30 | 2017-08-18 | 华映科技（集团）股份有限公司 | A kind of smart jack data collecting system and method based on many live wires |
| CN107069343B (en) * | 2017-03-30 | 2020-06-26 | 华映科技（集团）股份有限公司 | Intelligent socket data acquisition system and method based on multiple live wires |
| CN107093888A (en) * | 2017-05-10 | 2017-08-25 | 李亮棠 | Automatic reclosing protection switch with fire alarm defencive function |
| CN109238431A (en) * | 2018-09-14 | 2019-01-18 | 徐州恺尔电子设备有限公司 | A kind of anticreeper of electronic scale |
| CN109254223A (en) * | 2018-11-07 | 2019-01-22 | 深圳市众祥安全科技有限公司 | Leak electricity short-circuit detection method, open circuit protection equipment, monitoring center, system |
| CN109254223B (en) * | 2018-11-07 | 2021-10-29 | 深圳市众信消防电气检测有限公司 | Leakage short circuit detection method, open circuit protection equipment, monitoring center and system |
| CN110311348A (en) * | 2019-08-08 | 2019-10-08 | 广东电网有限责任公司 | Multifunctional protection device and ammeter box |
| CN113258667A (en) * | 2020-01-28 | 2021-08-13 | 西门子股份公司 | Remote drive, apparatus having the same, and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101124 Termination date: 20121231 |