CN103944139B - The decompression delayer of breaker is under-voltage coil - Google Patents
The decompression delayer of breaker is under-voltage coil Download PDFInfo
- Publication number
- CN103944139B CN103944139B CN201410129594.6A CN201410129594A CN103944139B CN 103944139 B CN103944139 B CN 103944139B CN 201410129594 A CN201410129594 A CN 201410129594A CN 103944139 B CN103944139 B CN 103944139B
- Authority
- CN
- China
- Prior art keywords
- resistance
- electric capacity
- switch
- under
- rectifier bridge
- 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.)
- Active
Links
- 230000006837 decompression Effects 0.000 title claims abstract description 28
- 238000004804 winding Methods 0.000 claims abstract description 8
- 230000005611 electricity Effects 0.000 claims description 7
- 230000018199 S phase Effects 0.000 claims description 2
- 239000003990 capacitor Substances 0.000 description 9
- 239000000853 adhesive Substances 0.000 description 6
- 230000001070 adhesive effect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 238000004134 energy conservation Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention discloses a kind of decompression delayer of the under-voltage coil of breaker, including：Transformer T, charging circuit and delay circuit, the charging circuit and the delay circuit are connected with the transformer T-phase respectively；The charging circuit includes：Relay J, electric capacity C1, electric capacity C2, resistance R2 and rectifier bridge D1;The delay circuit includes：Electric capacity C3, resistance R1, resistance R3, switch K1, switch K2, rectifier bridge D2 and triode S；The rectifier bridge D1 of the charging circuit is connected on the secondary winding transformer of the transformer T；The switch K1 of the delay circuit circuit is connected on the secondary winding transformer of the transformer T.Through the above way, the decompression delayer of the under-voltage coil of breaker of the present invention is installed on-board the circuit breaker so that the breaker of script is provided with under-voltage delay function, not only installs extremely easy additional, and reliability is better.
Description
Technical field
The present invention relates to appliance field, more particularly to a kind of under-voltage coil of breaker decompression delayer.
Background technology
Breaker drives under-voltage de- mouth mechanism by " under-voltage coil ", realizes power-off protection purpose.There is the mechanism, open circuit
Device can would not be used as disconnecting switch, when being sent a telegram here once again after having a power failure suddenly to motor, electric heater for connecing in circuit etc.
Electrical equipment starts suddenly and brings accident, so " under-voltage coil " wants powered adhesive to detect whether always during breaker closing
Voltage, just in case " under-voltage coil " dead electricity discharges, breaker will trip at once.
In the bad place of power quality, power supply is sometimes because the factor such as heavy load startup makes voltage cause fluctuation, ripple
It is dynamic to be likely to result in " under-voltage coil " improper dead electricity, so that the improper tripping operation-power supply of breaker is not powered off now, only
Only it is the very short fluctuation of time, recovers at once later normal.We feel that lamp is dark suddenly once sometimes in living
It is such case, this improper tripping operation for causing of fluctuating can bring heavy losses and to nothing to quantity-produced production line
People hotel on duty causes confusion.
To avoid mains fluctuations from causing the generation of improper tripping operation, break in the DW45 of the nineties Joint National design
" under-voltage time delay " function is configured with the device of road, i.e., in reference time delay（1-3 seconds）Even if " under-voltage coil " two ends are electric less than starting
Pressure, iron core will not also discharge, and can avoid the small fluctuation of supply voltage without tripping, if brownout, in addition decompression, the electricity
Road does not work yet.The type frame-type circuit breakers such as the DW10 of early stage production, DW15, DW17, ME, DWE and all DZ series modelings
Case circuit breaker all exists without this function, but user to these switch time delay demands.
The content of the invention
The present invention solves the technical problem of a kind of decompression delayer of the under-voltage coil of breaker is provided, the decompression is prolonged
When device as the adapter of breaker coil without tension, install this adapter additional on the breaker for need time delay, just can be as new
Intelligent breaker like that, be provided with under-voltage delay function, not only install extremely easy additional, and reliability is better, not later
When needing, reinstatement is convenient to.
In order to solve the above technical problems, one aspect of the present invention is：A kind of mistake of the under-voltage coil of breaker
Pressure delayer, including：Transformer T, charging circuit and delay circuit, the charging circuit and the delay circuit respectively with it is described
Transformer T-phase is connected；
The charging circuit includes：Relay J, electric capacity C1, electric capacity C2, resistance R2 and rectifier bridge D1;
The delay circuit includes：Electric capacity C3, resistance R1, resistance R3, switch K1, switch K2, rectifier bridge D2 and triode
S；
The rectifier bridge D1 of the charging circuit is connected on the secondary winding transformer of the transformer T, the relay J and institute
State electric capacity C2 series connection, one end of the relay J is connected with the negative pole of the electric capacity C2, the negative pole of the other end and electric capacity C1 with
And one end of the rectifier bridge D1 is connected；The positive pole and the electric capacity C2 of the other end of the rectifier bridge D1 and the electric capacity C1
Positive pole be connected；
The switch K1 of the delay circuit circuit is connected on the secondary winding transformer of the transformer T, the switch K1 with
The resistance R1 series connection, one end of the resistance R1 is connected with power supply, and the other end is connected with the switch K1；The rectifier bridge
D2 is connected with the switch K1；The rectifier bridge D2 is connected with the triode S-phase；The positive pole of the electric capacity C3 is whole with described
One end of stream bridge D2 and one end of under-voltage coil are connected, and the negative pole of the electric capacity C3 is connected with the switch K2.
In a preferred embodiment of the present invention, the resistance R2 also in parallel on the electric capacity C2.
In a preferred embodiment of the present invention, the one end of the rectifier bridge D2 with the switch K2 and the triode
The emitter stage of S is connected, and the colelctor electrode of the triode S is connected with the switch K2.
In a preferred embodiment of the present invention, the resistance R3 also in parallel on the triode S.
In a preferred embodiment of the present invention, the electric capacity C2 is decompression capacitor.
In a preferred embodiment of the present invention, the resistance R1 is current-limiting resistance.
In a preferred embodiment of the present invention, the resistance R2 is discharge resistance.
In a preferred embodiment of the present invention, the resistance R3 is adjustable resistance.
The beneficial effects of the invention are as follows：The decompression delayer of the under-voltage coil of breaker of the present invention is arranged on needs the disconnected of time delay
On the device of road so that the breaker of script is provided with under-voltage delay function, not only install extremely easy additional, and reliability is better.
Brief description of the drawings
Fig. 1 is the principle schematic of the decompression delayer of the under-voltage coil of breaker of the present invention.
Fig. 2 is the connection diagram of the decompression delayer of the under-voltage coil of breaker of the present invention.
Specific embodiment
Presently preferred embodiments of the present invention is described in detail below in conjunction with the accompanying drawings, so that advantages and features of the invention energy
It is easier to be readily appreciated by one skilled in the art, apparent is clearly defined so as to be made to protection scope of the present invention.
Fig. 1 and Fig. 2 is referred to, the embodiment of the present invention includes：A kind of decompression delayer of the under-voltage coil of breaker, including：
Transformer T, charging circuit and delay circuit, the charging circuit and the delay circuit are connected with the transformer T-phase respectively；
The charging circuit includes：Relay J, electric capacity C1, electric capacity C2, resistance R2 and rectifier bridge D1;
The delay circuit includes：Electric capacity C3, resistance R1, resistance R3, switch K1, switch K2, rectifier bridge D2 and triode
S。
The rectifier bridge D1 of the charging circuit is connected on the secondary winding transformer of the transformer T, the rectifier bridge D1 with
The secondary 12V power supplys of the transformer T are connected.
The relay J connects with the decompression capacitor C2, one end of the relay J and the negative pole phase of decompression capacitor C2
Connection, the other end is connected with the negative pole of electric capacity C1 and one end of the rectifier bridge D1, and the relay J is played in circuit
Automatically adjust, safeguard protection, the effect such as change-over circuit.
The other end of the rectifier bridge D1 is connected with the positive pole of the electric capacity C1 with the positive pole of the decompression capacitor C2, institute
Rectifier bridge D1 is stated by the characteristic of diode by AC rectification into direct current.
The discharge resistance R2 also in parallel on the decompression capacitor C2, the discharge resistance R2 are used for the step-down electricity
Hold the electric discharge of C2 two ends.
The switch K1 of the delay circuit circuit is connected on the secondary winding transformer of the transformer T, the switch K1 with
The secondary 12V power supplys of the transformer T are connected.
The switch K1 connects with the current-limiting resistance R1, and one end of the current-limiting resistance R1 is connected with power supply, the other end
It is connected with the switch K1, the current-limiting resistance R1 serves the effect of partial pressure.
The rectifier bridge D2 is connected with the switch K1, and the rectifier bridge D2 is whole by alternating current by the characteristic of diode
Flow into direct current.
The rectifier bridge D2 is connected with the switch K2, one end of the rectifier bridge D2 and switch K2 and described
The emitter stage of triode S is connected, and the colelctor electrode of the triode S is connected with the switch K2, and the triode S has to be put
The effect of high current.
The adjustable resistance R3 also in parallel on the triode S, the adjustable resistance R3 are available for artificially adjusting resistance
Size.
The positive pole of the electric capacity C3 is connected with one end of the rectifier bridge D2 and one end of under-voltage coil, the electric capacity
The negative pole of C3 is connected with the switch K2, and the electric capacity C3 is used to store electric charge, in power supply instant cut-off to under-voltage coil
Electric discharge, makes it keep attracting state, reaches time delay purpose.
The operation principle to the decompression delayer of the under-voltage coil of breaker of the invention describes in detail below.
In power on, in charging circuit the 12V power rectifier bridge D1 of T level of transformer through over commutation, filtering, to after
Electrical equipment J provides power supply, and the decompression capacitor C2 connected with relay J is powered moment equivalent to short circuit, so that switch K1 adhesives, drop
After voltage capacitance C2 is fully charged, without electric current in loop, switch K1 is discharged, switch the action of K1 one equivalent to button crawl
Under, as long as electric charge does not bleed off in decompression capacitor C2, switch K1 would not adhesive again, holding release (original) state.
When the following period of time of switch K1 adhesives, 220V supply voltages are passed through current-limiting resistance R1 by contact in delay circuit,
The end of under-voltage coil two is applied directly to by the DC voltage after rectifier bridge D2 rectifications, under-voltage coil is passed through big DC current and is inhaled
Close；After relay J releases, its contact is transformed into 12V rectifications and by triode S fine settings loop output to under-voltage coil, under-voltage
Coil switch K2 adhesives after, by adjusting adjustable resistance R3 come maintenance voltage in direct current 6-12V（Because direct current does not have induction reactance,
If the maintenance voltage of exchange, then overcome induction reactance to need more than 160V）, therefore long-term low dc voltage adhesive is to under-voltage line
Circle life-span and energy-conservation have very big Practical significance.
DC voltage shunt capacitance C3, electric charge is stored in electric capacity C3, and under-voltage coil is put in power supply instant cut-off
Electricity, makes switch K2 keep attracting state, reaches time delay purpose, and delay time and capacitance size and DC voltage height are all relevant
System, but very not accurate requirement, as long as therefore in 1-3 seconds time.
R2 is the discharge resistance of decompression capacitor C2, after the power-off of whole voltage (before i.e. second starts), decompression capacitor C2
On electric charge bled off by discharge resistance R2, be that second startup is prepared, the size of discharge resistance R2 is exactly discharge time
Length, discharge time is oversize to influence to start next time.
Compared with prior art, the decompression delayer of the under-voltage coil of breaker of the present invention is arranged on the breaker for needing time delay
On so that the breaker of script is provided with under-voltage delay function, not only installs extremely easy additional, and reliability is better, this dress
Put and escape power-supply fluctuation except effectively increasing, outside delay cut-off purpose, in under-voltage coil normally operation, also noise elimination, energy-conservation,
Multiple benefits such as extension life-span, it may also be used in the DW45 intelligent breakers of Joint National design, substitute the under-voltage line of all-electronin
Circle controller, the electronic component of all-electronin controller is constantly in high pressure, and reliability ratio is poor with transformer, and high-pressure electronic
Element price also can be high.
Embodiments of the invention are the foregoing is only, the scope of the claims of the invention is not thereby limited, it is every to utilize this hair
Equivalent structure or equivalent flow conversion that bright specification and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (5)
1. the decompression delayer of the under-voltage coil of a kind of breaker, it is characterised in that including：Transformer T, charging circuit and time delay electricity
Road, the charging circuit and the delay circuit are connected with the transformer T-phase respectively；
The charging circuit includes：Relay J, electric capacity C1, electric capacity C2, resistance R2 and rectifier bridge D1;
The delay circuit includes：Electric capacity C3, resistance R1, resistance R3, switch K1, switch K2, rectifier bridge D2 and triode S；
The rectifier bridge D1 of the charging circuit is connected on the secondary winding transformer of the transformer T, the relay J and the electricity
Hold C2 series connection, one end of the relay J is connected with the negative pole of the electric capacity C2, the negative pole and institute of the other end and electric capacity C1
The one end for stating rectifier bridge D1 is connected；The positive pole of the other end of the rectifier bridge D1 and the electric capacity C1 is with the electric capacity C2 just
Pole is connected；
One contact of the switch K1 of the delay circuit is connected on the secondary winding transformer of the transformer T, the switch K1
Connected with the resistance R1, one end of the resistance R1 is connected with power supply, the other end is connected with described another contact of switch K1
Connect；The rectifier bridge D2 is connected with an end points of the switch K1；
The rectifier bridge D2 is connected with the triode S-phase；One end of the positive pole of the electric capacity C3 and the rectifier bridge D2 and
One end of under-voltage coil is connected, and the negative pole of the electric capacity C3 is connected with described mono- contact of switch K2；The rectifier bridge D2
The other end be connected with another contact of the switch K2 and the emitter stage of the triode S, the collection of the triode S
Electrode is connected with an end points of the switch K2；
The resistance R2 also in parallel on the electric capacity C2；
The resistance R3, base stage and collection of the resistance R3 two ends respectively at the triode S also in parallel on the triode S
Electrode is connected.
2. the decompression delayer of the under-voltage coil of breaker according to claim 1, it is characterised in that：The electric capacity C2 is drop
Voltage capacitance.
3. the decompression delayer of the under-voltage coil of breaker according to claim 1, it is characterised in that：The resistance R1 is limited
Leakage resistance.
4. the decompression delayer of the under-voltage coil of breaker according to claim 1, it is characterised in that：The resistance R2 is to put
Resistance.
5. the decompression delayer of the under-voltage coil of breaker according to claim 1, it is characterised in that：The resistance R3 is can
Adjust resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410129594.6A CN103944139B (en) | 2014-04-02 | 2014-04-02 | The decompression delayer of breaker is under-voltage coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410129594.6A CN103944139B (en) | 2014-04-02 | 2014-04-02 | The decompression delayer of breaker is under-voltage coil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103944139A CN103944139A (en) | 2014-07-23 |
| CN103944139B true CN103944139B (en) | 2017-06-27 |
Family
ID=51191689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410129594.6A Active CN103944139B (en) | 2014-04-02 | 2014-04-02 | The decompression delayer of breaker is under-voltage coil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103944139B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111817544A (en) * | 2020-08-14 | 2020-10-23 | 珠海格力电器股份有限公司 | Frequency converter starting device, method and frequency converter |
| CN112763820B (en) * | 2020-12-22 | 2023-01-03 | 深圳供电局有限公司 | Undervoltage coil detection device and power distribution cabinet detection system |
| CN114825300B (en) * | 2022-06-27 | 2022-10-04 | 深圳市芯卓微科技有限公司 | Current-limiting delay circuit and current-limiting delay chip |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4412267A (en) * | 1980-02-06 | 1983-10-25 | Eaton Corporation | Time-delay current sensing circuit breaker relay |
| CN2149702Y (en) * | 1993-02-11 | 1993-12-15 | 张希文 | Protective circuit arrangement for domestic electric appliance with time accumulation function |
| CN102709874A (en) * | 2012-05-30 | 2012-10-03 | 江苏国星电器有限公司 | High-voltage under-voltage release |
| CN203883446U (en) * | 2014-04-02 | 2014-10-15 | 江苏永明电气有限公司 | Circuit breaker undervoltage coil no-voltage time delay device |
-
2014
- 2014-04-02 CN CN201410129594.6A patent/CN103944139B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4412267A (en) * | 1980-02-06 | 1983-10-25 | Eaton Corporation | Time-delay current sensing circuit breaker relay |
| CN2149702Y (en) * | 1993-02-11 | 1993-12-15 | 张希文 | Protective circuit arrangement for domestic electric appliance with time accumulation function |
| CN102709874A (en) * | 2012-05-30 | 2012-10-03 | 江苏国星电器有限公司 | High-voltage under-voltage release |
| CN203883446U (en) * | 2014-04-02 | 2014-10-15 | 江苏永明电气有限公司 | Circuit breaker undervoltage coil no-voltage time delay device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103944139A (en) | 2014-07-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105406851B (en) | A kind of list firewire switch | |
| CN104135061B (en) | The earth leakage protective DC power-supply system of a kind of band | |
| CN101593966B (en) | Open-phase protector for three-phase motor | |
| CN103944139B (en) | The decompression delayer of breaker is under-voltage coil | |
| CN102709127A (en) | Low-voltage alternating current/direct current general under-voltage tripper | |
| CN108199462B (en) | An AC-DC converter circuit | |
| CN102768924B (en) | An undervoltage release with low power consumption and suitable for three-phase power supply | |
| CN204243716U (en) | Electric device fault secure circuit | |
| CN102768923B (en) | An undervoltage release and its working method | |
| CN102097787B (en) | Motor phase sequence default phase protector adopting resistive-capacitive (RC) phase-shift circuit | |
| CN104882847A (en) | Alarm apparatus for electricity load limiting protection | |
| CN2884649Y (en) | High voltage large capacity pulse current capacitor constant current charger | |
| CN205544213U (en) | Disconnected zero of undervoltage protection ware, open -phase protection circuit are crossed from double entry to three -phase four -wire | |
| CN205385282U (en) | Voltage controller is owed in outage time delay | |
| CN203883446U (en) | Circuit breaker undervoltage coil no-voltage time delay device | |
| CN201994637U (en) | Motor comprehensive protector for double-star type network detection | |
| CN201994837U (en) | High-power switching power supply surge current protector | |
| CN108768357B (en) | High-low voltage automatic switching electronic switch circuit | |
| CN104392869B (en) | Device for under-voltage releasing equipment | |
| CN212210966U (en) | Electronic switch circuit and electronic device applying same | |
| CN102545147A (en) | Method for tandem operation of alternating current shunt release and alternating current relay | |
| CN110867845A (en) | A protection circuit for preventing single-phase electrical equipment from being mistakenly connected to three-phase electricity | |
| CN204376737U (en) | A kind of power circuit of arc fault detection | |
| CN102568963B (en) | Alternating current shunt tripper suitable for working with alternating current relay in series | |
| CN104377094B (en) | A kind of low-power consumption device for under-voltage releasing equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |