CN205901265U - Adopt quadrupole to get earthleakage protective equipment of electric mode - Google Patents
Adopt quadrupole to get earthleakage protective equipment of electric mode Download PDFInfo
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- CN205901265U CN205901265U CN201620582109.5U CN201620582109U CN205901265U CN 205901265 U CN205901265 U CN 205901265U CN 201620582109 U CN201620582109 U CN 201620582109U CN 205901265 U CN205901265 U CN 205901265U
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Abstract
The utility model relates to an earthleakage protective equipment especially relates to adopt quadrupole to get earthleakage protective equipment of electric mode, and rectifier circuit and step -down circuit connection, reduction voltage circuit answer circuit connection with electric leakage detection circuit, leakage inductance respectively, and the leakage inductance answers the circuit still to detect circuit connection with test button, electric leakage respectively, electric leakage detection circuit still with silicon controlled switch circuit connection, rectifier circuit include and the four -wire be L1, L2, L3, N respectively, four -wire switch -on 380V power, the four -wire divide into two sets ofly, is connected with bridge type rectifier circuit DB1 and bridge type rectifier circuit DB2 respectively, two parallelly connected piezo -resistor respectively between L1 and the L2, between L2 and the L3, between L1 and the L3, L1, L2, L3 be parallelly connected piezo -resistor respectively and between the N. This earthleakage protective equipment, the module of will leaking electricity adopts the multipolar electric mode of getting, and the electricity is all got to each utmost point, and the electrified earth leakage protection module in arbitrary the two poles of the earth can both normally be worked, any one utmost point short of electricity, the protective film piece also can normally be worked.
Description
Technical field
This utility model is related to a kind of earth leakage protective device, especially relates to the earth leakage protective dress using quadrupole way to take power
Put.
Background technology
4 pole protectors being usually used in the market, electric leakage module is all two-stage power taking, as shown in circuit 2, only passes through
One phase l1 and n carry out power taking, and in addition two l2 and l3 do not connect earth leakage protective device, if having a pole power-off, electric leakage module in l1 and n
Do not work, but l2 and l3 or powered, if now leaked electricity, because electric leakage module does not work, if now
Someone touches l2 and l3, will produce electric shock accidentss risk, and personal life security is threatened.So we are through changing
Enter, by the 4 poles electric leakage each pole of product all power takings, as long as polarity has electricity, leakage protection module between l1, l2, l3 and n are quadrupole
Meeting normal work, solves and the idle problem of a pole power-off leakage protection module in the power taking of the two poles of the earth.
Utility model content
For above-mentioned technical problem, this utility model provides a kind of earth leakage protective device using quadrupole way to take power, often
The all power takings of one pole, the powered leakage protection module in any the two poles of the earth can normal work, any pole short of electricity, protection module also can be normal
Work.
Concrete technical scheme is:
Using the earth leakage protective device of quadrupole way to take power, including rectification circuit, reduction voltage circuit, electric-leakage detection circuit, survey
Examination button, electric leakage sensor circuit, magnetic silicon controlled switch circuit；Described rectification circuit is connected with reduction voltage circuit, and reduction voltage circuit is respectively
It is connected with electric-leakage detection circuit, electric leakage sensor circuit, electric leakage sensor circuit is also respectively with testing button, electric-leakage detection circuit even
Connect, electric-leakage detection circuit is also connected with magnetic silicon controlled switch circuit；Described rectification circuit includes four lines, respectively l1, l2, l3,
N, 380v power supply connected by four lines, and four lines are divided into two groups, are connected with bridge rectifier db1 and bridge rectifier db2 respectively；l1
Difference two varistors in parallel between l2, between l2 and l3, between l1 and l3；L1, l2, l3 are respectively in parallel one between n
Individual varistor.
The bridge rectifier db1 of rectification circuit and bridge rectifier db2 connects the tripping coil of reduction voltage circuit, threads off
Coil passes through the resistance r5 of series connection, resistance r6, resistance r7 series connection is connected with backward diode zd1, and backward diode zd1 is grounded,
Resistance r5, resistance r6, resistance r7, backward diode zd1 are also in parallel with varistor r4 simultaneously；Backward diode zd1 electricity in parallel
It is connected with electric-leakage detection circuit after holding c1；Reduction voltage circuit is passed through electric capacity c2 and is connected with electric leakage sensor circuit；Electric leakage sensor circuit bag
Include zero sequence current mutual inductor zct, zero sequence current mutual inductor zct is sequentially connected bilateral diode u1, electric capacity c3, resistance r8, resistance
R8 is connected with 1 foot of electric-leakage detection circuit, 2 feet by electric capacity c4, resistance r9；Electric-leakage detection circuit 6 foot and 7 feet are opened with controllable silicon
Close circuit to connect；Electric-leakage detection circuit 6 foot is connected with 7 feet by electric capacity c6, and 7 feet reconnect electric capacity c7 and silicon controlled rectifier respectively
Device scr；Electric capacity c7 is grounded；Electric-leakage detection circuit 4 foot and 5 feet are connected with electric capacity c5 respectively, and electric capacity c5 is grounded；Silicon controlled rectifier (SCR)
Scr is grounded respectively and connects tripping coil；Testing button include the button test button that is arranged on l2 and be connected on l1 with
Resistance r10 between l2.
The earth leakage protective device using quadrupole way to take power that this utility model provides, electric leakage module is adopted multipole power taking
Mode, increases to two rectifier bridges and 3 10d431 varistors, can withstand 4000v surge voltage impact；Each pole is all
Power taking, the powered leakage protection module in any the two poles of the earth can normal work, any pole short of electricity, protection module also can normal work.
Brief description
Fig. 1 is structural representation of the present utility model.
Specific embodiment
Of the present utility model specific embodiment is described with reference to the drawings.
As shown in figure 1, using the earth leakage protective device of quadrupole way to take power, including rectification circuit, reduction voltage circuit, electric leakage inspection
Slowdown monitoring circuit, testing button, electric leakage sensor circuit, magnetic silicon controlled switch circuit；Described rectification circuit is connected with reduction voltage circuit, blood pressure lowering
Circuit respectively with electric-leakage detection circuit, electric leakage sensor circuit is connected, leak electricity sensor circuit also respectively with testing button, detection of electrical leakage
Circuit connects, and electric-leakage detection circuit is also connected with magnetic silicon controlled switch circuit；Described rectification circuit includes four lines, respectively l1,
L2, l3, n, 380v power supply connected by four lines, and four lines are divided into two groups, respectively with bridge rectifier db1 and bridge rectifier db2
Connect；Difference two varistors in parallel between l1 and l2, between l2 and l3, between l1 and l3；L1, l2, l3 are respectively and n between
A varistor in parallel.
The bridge rectifier db1 of rectification circuit and bridge rectifier db2 connects the tripping coil of reduction voltage circuit, threads off
Coil passes through the resistance r5 of series connection, resistance r6, resistance r7 series connection is connected with backward diode zd1, and backward diode zd1 is grounded,
Resistance r5, resistance r6, resistance r7, backward diode zd1 are also in parallel with varistor r4 simultaneously；Backward diode zd1 electricity in parallel
It is connected with electric-leakage detection circuit after holding c1；Reduction voltage circuit is passed through electric capacity c2 and is connected with electric leakage sensor circuit；Electric leakage sensor circuit bag
Include zero sequence current mutual inductor zct, zero sequence current mutual inductor zct is sequentially connected bilateral diode u1, electric capacity c3, resistance r8, resistance
R8 is connected with 1 foot of electric-leakage detection circuit, 2 feet by electric capacity c4, resistance r9；Electric-leakage detection circuit 6 foot and 7 feet are opened with controllable silicon
Close circuit to connect；Electric-leakage detection circuit 6 foot is connected with 7 feet by electric capacity c6, and 7 feet reconnect electric capacity c7 and silicon controlled rectifier respectively
Device scr；Electric capacity c7 is grounded；Electric-leakage detection circuit 4 foot and 5 feet are connected with electric capacity c5 respectively, and electric capacity c5 is grounded；Silicon controlled rectifier
Device scr is grounded respectively and connects tripping coil；Testing button includes the button test button being arranged on l2 and is connected on l1
Resistance r10 and l2 between.
The present embodiment adopts three four line mode power takings, and l1, l2, l3, n connect 380v power supply, are then passed through two bridge-types
Rectification circuit db1 and bridge rectifier db2, alternating voltage is converted to DC voltage.Because 380v between live wire and live wire
Voltage, so two varistors in parallel respectively between l1 and l2, l2 and l3, l1 and l3；Due to being 220v electricity between l and n
Pressure, so l1, l2, l3 varistor in parallel between n respectively；It is connected to using three varistors rv1, rv2, rv3
Between l1, l2, l3, n, switch is enable to bear 4000v surge voltage impact.Rectification circuit is again through resistance r5, resistance r6, electricity
Resistance tri- resistance of r7, carry out blood pressure lowering to supply voltage, then meet a backward diode zd1 and carry out pincers to the voltage after blood pressure lowering
Position, makes voltage be maintained at stable 15v DC voltage, then shunt capacitance c1, provides power supply to electric-leakage detection circuit, make electric leakage
Testing circuit (electric leakage chip m54123) normal work.See in Fig. 1 electric leakage sensor circuit, zero sequence current mutual inductor zct with two-way
Diode u1 connects, and bilateral diode u1 is used for clamping the voltage that zero sequence current mutual inductor zct is sensed, then through electric capacity c3
It is filtered, then connects resistance r8, the current signal that zero sequence current mutual inductor zct is sensed is converted to voltage signal, then
It is filtered absorbing interference signal through electric capacity c4, be then connected to 1,2 feet of electric-leakage detection circuit.Electric-leakage detection circuit will sense
To electric leakage signal again through amplification filtering, amplify and rectification obtain a DC voltage through 7 feet, input to reverse-blocking tetrode thyristor
Circuit, turns between triggering reverse-blocking tetrode thyristor anode and negative electrode, so that the tripping coil in reduction voltage circuit (trip coil) is led over the ground
Logical, form loop with reverse-blocking tetrode thyristor, external agency's separating brake is triggered by tripping coil.
Testing button circuit is one and is used for manual test use, manual depression of button test button, earth leakage protective mould
Block is threaded off, and is a manual mode, this circuit is utilized in series resistance r10 between l1 and l2, then penetrates zero-sequence current mutual
Sensor zct, when pressing the button test button, test loop turns on, and now produces one in zero sequence current mutual inductor zct
Individual simulation leakage current, driving switch trips.
Claims (2)
1. adopt quadrupole way to take power earth leakage protective device it is characterised in that: include rectification circuit, reduction voltage circuit, electric leakage inspection
Slowdown monitoring circuit, testing button, electric leakage sensor circuit, magnetic silicon controlled switch circuit；Described rectification circuit is connected with reduction voltage circuit, blood pressure lowering
Circuit respectively with electric-leakage detection circuit, electric leakage sensor circuit is connected, leak electricity sensor circuit also respectively with testing button, detection of electrical leakage
Circuit connects, and electric-leakage detection circuit is also connected with magnetic silicon controlled switch circuit；Described rectification circuit includes four lines, respectively l1,
L2, l3, n, 380v power supply connected by four lines, and four lines are divided into two groups, respectively with bridge rectifier db1 and bridge rectifier db2
Connect；Difference two varistors in parallel between l1 and l2, between l2 and l3, between l1 and l3；L1, l2, l3 are respectively and n between
A varistor in parallel.
2. the earth leakage protective device using quadrupole way to take power according to claim 1 it is characterised in that: described rectification
The bridge rectifier db1 of circuit and bridge rectifier db2 connects the tripping coil of reduction voltage circuit, and tripping coil passes through series connection
Resistance r5, resistance r6, resistance r7 series connection be connected with backward diode zd1, backward diode zd1 ground connection, resistance r5, electricity simultaneously
Resistance r6, resistance r7, backward diode zd1 are also in parallel with varistor r4；With electric leakage inspection after backward diode zd1 shunt capacitance c1
Slowdown monitoring circuit connects；Reduction voltage circuit is passed through electric capacity c2 and is connected with electric leakage sensor circuit；Electric leakage sensor circuit includes zero sequence current mutual inductance
Device zct, zero sequence current mutual inductor zct are sequentially connected bilateral diode u1, electric capacity c3, resistance r8, and resistance r8 passes through electric capacity c4, electricity
Resistance r9 is connected with 1 foot of electric-leakage detection circuit, 2 feet；Electric-leakage detection circuit 6 foot and 7 feet are connected with magnetic silicon controlled switch circuit；Electric leakage
Testing circuit 6 foot is connected with 7 feet by electric capacity c6, and 7 feet reconnect electric capacity c7 and silicon controlled rectifier (SCR) scr respectively；Electric capacity c7 connects
Ground；Electric-leakage detection circuit 4 foot and 5 feet are connected with electric capacity c5 respectively, and electric capacity c5 is grounded；Silicon controlled rectifier (SCR) scr be grounded respectively and
Connect tripping coil；Testing button includes the button test button being arranged on l2 and is connected on the resistance between l1 and l2
r10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620582109.5U CN205901265U (en) | 2016-06-16 | 2016-06-16 | Adopt quadrupole to get earthleakage protective equipment of electric mode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620582109.5U CN205901265U (en) | 2016-06-16 | 2016-06-16 | Adopt quadrupole to get earthleakage protective equipment of electric mode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205901265U true CN205901265U (en) | 2017-01-18 |
Family
ID=57767817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620582109.5U Expired - Fee Related CN205901265U (en) | 2016-06-16 | 2016-06-16 | Adopt quadrupole to get earthleakage protective equipment of electric mode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205901265U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110286294A (en) * | 2019-07-25 | 2019-09-27 | 云南电网有限责任公司电力科学研究院 | A kind of self-energizing device and method for monitoring of leaking electricity |
| CN110286293A (en) * | 2019-07-25 | 2019-09-27 | 云南电网有限责任公司电力科学研究院 | A kind of self-energizing electric leakage monitoring method and system based on leakage current |
-
2016
- 2016-06-16 CN CN201620582109.5U patent/CN205901265U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110286294A (en) * | 2019-07-25 | 2019-09-27 | 云南电网有限责任公司电力科学研究院 | A kind of self-energizing device and method for monitoring of leaking electricity |
| CN110286293A (en) * | 2019-07-25 | 2019-09-27 | 云南电网有限责任公司电力科学研究院 | A kind of self-energizing electric leakage monitoring method and system based on leakage current |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170118 Termination date: 20170616 |