CN109599832A - Leakage protector with regular prompt and detection functions - Google Patents
Leakage protector with regular prompt and detection functions Download PDFInfo
- Publication number
- CN109599832A CN109599832A CN201910030707.XA CN201910030707A CN109599832A CN 109599832 A CN109599832 A CN 109599832A CN 201910030707 A CN201910030707 A CN 201910030707A CN 109599832 A CN109599832 A CN 109599832A
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- CN
- China
- Prior art keywords
- sequence current
- controller
- zero
- detection
- earth leakage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 47
- 230000001012 protector Effects 0.000 title abstract description 3
- 230000001681 protective effect Effects 0.000 claims description 28
- 230000000737 periodic effect Effects 0.000 claims description 12
- 230000000007 visual effect Effects 0.000 claims description 2
- 238000007689 inspection Methods 0.000 claims 1
- 230000005611 electricity Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000034994 death Effects 0.000 description 1
- 231100000517 death Toxicity 0.000 description 1
- 238000010616 electrical installation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/26—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents
- H02H3/32—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/0007—Details of emergency protective circuit arrangements concerning the detecting means
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/02—Details
Landscapes
- Emergency Protection Circuit Devices (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The invention discloses a leakage protector for regularly prompting detection, which comprises a zero sequence current transformer TA sleeved on a phase line and a zero line, wherein the power supply side of the zero sequence current transformer TA is connected with a main switch KM for controlling the on-off of the phase line and the zero line, the phase line between the power supply side of the zero sequence current transformer TA and the main switch KM is sequentially connected with a current limiting resistor R and a detection switch SB, the other end of the detection switch SB is connected with the zero line on the load side of the zero sequence current transformer TA, the output end of a secondary coil of the zero sequence current transformer TA is sequentially connected with a zero sequence current signal processor and a controller, the controller is connected with a tripping device, a timer module for regularly prompting detection is arranged in or connected with the controller, and the controller is also connected with a light prompter.
Description
[technical field]
The present invention relates to a kind of earth leakage protective devices of periodically prompt detection.
[background technique]
As electricity consumption, electrical disaster caused by improper or line electrical leakage happens occasionally in daily production and life, causes
Immeasurable casualties and property loss.It is to avoid physical electrical shock fire protection injures and deaths that earth leakage protective device is installed in low-voltage distribution system
The effective measures of electrical fire caused by accident and electric leakage, electrical equipment damage accident.The electrical installation of most countries is advised
Range request regularly detects the performance of protector, China's electric power safety regulation, and earth leakage protective device will carry out once at least every month
Whether detection, verifying creepage protection function are normal.But it has more than 90% user there is no periodic detection as required, wind
Danger can not be underestimated.
[summary of the invention]
The invention overcomes the shortcomings of the above-mentioned technology and provides a kind of earth leakage protective devices of periodically prompt detection.
To achieve the above object, present invention employs following technical proposals:
A kind of earth leakage protective device of regular prompt detection, includes the zero sequence current mutual inductor being set in phase line and zero curve
TA, the zero sequence current mutual inductor TA source side are connected with the main switch KM of control phase line and zero curve on-off, the zero-sequence current
Between mutual inductor TA source side and main switch KM phase line be sequentially connected with limited leakage resistance R, for detecting when triggering make zero-sequence current
Mutual inductor TA generates the detection switch SB of zero-sequence current, the detection switch SB other end and zero sequence current mutual inductor TA load-side
Zero curve connection, the zero sequence current mutual inductor TA secondary coil output end have been sequentially connected with zero sequence current signal processor 1, control
Device 2, the controller 2 are connected with disconnected for controlling main switch KM when zero sequence current signal processor 1 detects zero-sequence current
The trip gear 3 opened, the controller 2 are built-in with or are connected with the Timer module 4 for periodically prompting detection, the control
Device 2 is also connected with the light prompt device 5 for prompting detection；After periodic detection time of 4 timing of Timer module to setting,
Controller 2 controls light prompt device 5 and works, and user is prompted to carry out detection earth leakage protective device manually, manually actuated test switch SB
Afterwards, zero sequence current mutual inductor TA exports residual current, and controller 2 is made to stop the work of light prompting device 5 and 4 timing of Timer module
It resets, and exporting trip signal makes trip gear 3 thread off, and disconnects the contact main switch KM, after main switch KM is re-closed, timing
Device module 4 restarts periodic detection timing.
The controller 2 is connected with for carrying out sound after 4 timing of Timer module to the periodic detection time of setting
The voice prompting device 6 of prompt.
The controller 2 is connected with the photosensitive detector 7 for closing voice prompting device 6 in dark.
The sound pick-up 8 that just control voice prompting device 6 works when the controller 2 is connected with for detecting ambient sound.
The controller 2 is connected with for not can control the sound-light alarm that main switch KM disconnects alarm in trip gear 3
Device 9.
The controller 2 is connected with the time setter 10 that detection time is periodically prompted for Timer module 4 to be arranged.
The beneficial effects of the present invention are:
1, the present invention can periodically prompt user to carry out detection earth leakage protective device.
2, of the invention to be equipped with photosensitive detector, sound prompt is closed when dark, when can avoid user's sleep rest
Voice prompt is bothered.
3, the present invention is equipped with sound pick-up, prevents from generating the invalid sound prompt when nobody.
[Detailed description of the invention]
Fig. 1 is schematic structural view of the invention.
Power supply line symbol description in figure: L is phase line, and N is zero curve, and PE is ground wire.
[specific embodiment]
The technical solution of the embodiment of the present invention is explained and illustrated below with reference to the attached drawing of the embodiment of the present invention, but under
It states embodiment to be merely a preferred embodiment of the present invention, and not all.Based on the implementation example in the implementation mode, those skilled in the art
Obtained other embodiments without making creative work, belong to protection scope of the present invention.
As shown in Figure 1, a kind of earth leakage protective device of periodically prompt detection, includes the zero sequence being set in phase line and zero curve
Current transformer TA, the zero sequence current mutual inductor TA source side are connected with the main switch KM of control phase line and zero curve on-off, institute
It states phase line between zero sequence current mutual inductor TA source side and main switch KM and is sequentially connected with limited leakage resistance R and when for detecting
Triggering makes the detection switch SB of zero sequence current mutual inductor TA generation zero-sequence current, the detection switch SB other end and zero-sequence current
The connection of mutual inductor TA load-side zero curve, the zero sequence current mutual inductor TA secondary coil output end have been sequentially connected with zero-sequence current letter
Number processor 1, controller 2, the controller 2 are connected with for when zero sequence current signal processor 1 detects zero-sequence current
The trip gear 3 that main switch KM is disconnected is controlled, the controller 2 is built-in with or is connected with the timer for periodically prompting detection
Module 4, the controller 2 are also connected with the light prompt device 5 for prompting detection.
Wherein, the controller 2 is connected with for not can control the acousto-optic that main switch KM disconnects alarm in trip gear 3
Alarm 9.
Operation manual handle is closed after main switch KM contact closure powers on every time, and controller 2 controls Timer module 4 and starts
Periodic detection timing, after 4 timing of Timer module is to setting time, controller 2 controls light prompt device 5 and works, and prompts to use
Family carries out detection earth leakage protective device manually, at this time the manually actuated test switch SB of user, and electric current is by current limliting electricity after contact closure
Resistance R flows to zero curve N from phase line L, and zero sequence current mutual inductor TA exports residual current after the processing of zero sequence current signal processor 1,
Trigger signal is exported to controller 2, so that controller 2 is stopped the work of light prompting device 5 and 4 timing of Timer module reset, and defeated
Trip signal makes trip gear 3 thread off out, disconnects the contact main switch KM, that is, illustrates that earth leakage protective device is normal, then closes manually
It can continue electricity consumption after upper main switch KM, Timer module 4 restarts periodic detection timing；If the manually actuated test switch of user
After SB, main switch KM does not trip, and contact does not turn off, and manual handle is still the state of closing, i.e., earth leakage protective device breaks down, at this time
Controller 2 controls combined aural and visual alarm 9 and carries out sound-light alarm.
The controller 2 is connected with the time setter 10 that detection time is periodically prompted for Timer module 4 to be arranged, and uses
Family can set the periodic detection time of Timer module 4 by time setter 10.
The controller 2 is connected with for carrying out sound after 4 timing of Timer module to the periodic detection time of setting
The voice prompting device 6 of prompt, since part earth leakage protective device is mounted on background, light prompt detection is not easy to cause
User passes through auditory tone cues user and carries out periodic detection note that be therefore also provided with voice prompting device 6.
The controller 2 is connected with the photosensitive detector 7 for closing voice prompting device 6 in dark, and sound mentions
User's sleep rest may be bothered by being shown with, therefore voice prompting device 6 is closed in dark by photosensitive detector 7.
The sound pick-up 8 that just control voice prompting device 6 works when the controller 2 is connected with for detecting ambient sound,
When avoiding around earth leakage protective device nobody, voice prompting device 6 issues unavailable emphasis sound.
The present invention can be applied not only to installing type earth leakage protective device, can also be applied to rail conduction earth leakage protective device, band
Earth leakage protective power outlet or insert row, with earth leakage protective mobile power socket or insert row, with earth leakage protective attaching plug,
Equipment with earth leakage protective plug and socket of power source or insert row converter etc. in relation to list, three phase mains, it is numerous to list herein, it is all
The scope of the present invention is belonged to using of the invention in the earth leakage protective in relation to power supply.
Claims (6)
1. a kind of earth leakage protective device of periodically prompt detection, includes the zero sequence current mutual inductor being set in phase line and zero curve
TA, the zero sequence current mutual inductor TA source side are connected with the main switch KM of control phase line and zero curve on-off, the zero-sequence current
Between mutual inductor TA source side and main switch KM phase line be sequentially connected with limited leakage resistance R, for detecting when triggering make zero-sequence current
Mutual inductor TA generates the detection switch SB of zero-sequence current, the detection switch SB other end and zero sequence current mutual inductor TA load-side
Zero curve connection, the zero sequence current mutual inductor TA secondary coil output end have been sequentially connected with zero sequence current signal processor (1), control
Device (2) processed, the controller (2) are connected with for controlling master when zero sequence current signal processor (1) detects zero-sequence current
The trip gear (3) that switch KM is disconnected, it is characterised in that: the controller (2) is built-in with or is connected with for periodically prompting inspection
The Timer module (4) of survey, the controller (2) are also connected with the light prompt device (5) for prompting detection；When timer mould
After block (4) timing to the periodic detection time of setting, controller (2) controls light prompt device (5) work, and user is prompted to carry out hand
It moves and detects earth leakage protective device, after manually actuated test switch SB, zero sequence current mutual inductor TA exports residual current, makes controller
(2) stop light prompting device (5) work and Timer module (4) timing resets, and exporting trip signal keeps trip gear (3) de-
Button disconnects the contact main switch KM, and after main switch KM is re-closed, Timer module (4) restarts periodic detection timing.
2. a kind of earth leakage protective device of periodically prompt detection according to claim 1, it is characterised in that: the controller
(2) auditory tone cues for carrying out auditory tone cues after Timer module (4) timing to the periodic detection time of setting are connected with
Device (6).
3. a kind of earth leakage protective device of periodically prompt detection according to claim 2, it is characterised in that: the controller
(2) it is connected with the photosensitive detector (7) for closing voice prompting device (6) in dark.
4. a kind of earth leakage protective device of periodically prompt detection according to claim 2, it is characterised in that: the controller
(2) sound pick-up (8) that just control voice prompting device (6) works when being connected with for detecting ambient sound.
5. a kind of earth leakage protective device of periodically prompt detection according to claim 1, it is characterised in that: the controller
(2) it is connected with for not can control the combined aural and visual alarm (9) that main switch KM disconnects alarm in trip gear (3).
6. a kind of earth leakage protective device of periodically prompt detection according to claim 1, it is characterised in that: the controller
(2) it is connected with the time setter (10) that detection time is periodically prompted for Timer module (4) to be arranged.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910030707.XA CN109599832A (en) | 2019-01-14 | 2019-01-14 | Leakage protector with regular prompt and detection functions |
| PCT/CN2019/120577 WO2020147427A1 (en) | 2019-01-14 | 2019-11-25 | Leakage protector capable of regularly prompting detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910030707.XA CN109599832A (en) | 2019-01-14 | 2019-01-14 | Leakage protector with regular prompt and detection functions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109599832A true CN109599832A (en) | 2019-04-09 |
Family
ID=65966040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910030707.XA Pending CN109599832A (en) | 2019-01-14 | 2019-01-14 | Leakage protector with regular prompt and detection functions |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109599832A (en) |
| WO (1) | WO2020147427A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020147427A1 (en) * | 2019-01-14 | 2020-07-23 | 陈劲游 | Leakage protector capable of regularly prompting detection |
| CN112423439A (en) * | 2020-10-23 | 2021-02-26 | 陈劲游 | Prevent dodging wall switch circuit that single fire was got electricity |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6850073B2 (en) * | 2003-03-06 | 2005-02-01 | Eaton Corporation | Power circuit tester apparatus and method |
| MY147295A (en) * | 2006-04-26 | 2012-11-30 | Fong See Ni | A time alert device for use together with an earth leakage protection device |
| CN104422830B (en) * | 2013-08-27 | 2019-03-29 | 施耐德电器工业公司 | Earth leakage protective device and creepage protection function detection method |
| CN109599832A (en) * | 2019-01-14 | 2019-04-09 | 陈劲游 | Leakage protector with regular prompt and detection functions |
-
2019
- 2019-01-14 CN CN201910030707.XA patent/CN109599832A/en active Pending
- 2019-11-25 WO PCT/CN2019/120577 patent/WO2020147427A1/en active Application Filing
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020147427A1 (en) * | 2019-01-14 | 2020-07-23 | 陈劲游 | Leakage protector capable of regularly prompting detection |
| CN112423439A (en) * | 2020-10-23 | 2021-02-26 | 陈劲游 | Prevent dodging wall switch circuit that single fire was got electricity |
| CN112423439B (en) * | 2020-10-23 | 2024-06-11 | 陈劲游 | Anti-flashover single-fire wall switch circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020147427A1 (en) | 2020-07-23 |
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