CN208298769U - A kind of under-voltage tripping control module and breaker - Google Patents
A kind of under-voltage tripping control module and breaker Download PDFInfo
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- CN208298769U CN208298769U CN201820930517.4U CN201820930517U CN208298769U CN 208298769 U CN208298769 U CN 208298769U CN 201820930517 U CN201820930517 U CN 201820930517U CN 208298769 U CN208298769 U CN 208298769U
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Abstract
The utility model discloses a kind of under-voltage tripping control modules.The utility model can be indicated in electrification by increasing charged display device in existing under-voltage tripping control module circuit, effectively increase safety；The utility model also further increases electric discharge device, can further improve system security reliability by electric discharge device by the electrically charged timely release of institute in under-voltage tripping control module circuit when finding electrification.The invention also discloses a kind of breakers.Compared with prior art, the utility model has higher security reliability.
Description
Technical field
The utility model relates to a kind of under-voltage tripping control modules.
Background technique
Secondary circuit powers off and electrical equipment can not be controlled under the state of coming into operation in order to prevent in electrical engineering field
System, it will usually be provided with under-voltage tripping control module.
In field of high-voltage electrical equipment, it is desirable that secondary control voltage breaker under 65% rated value can reliably separating brake thread off,
Breaker must not separating brake tripping under 30% rated value.Breaker under-voltage tripping control module is gradually declined in secondary control voltage
Driven in the case where reducing to 30% or suddenly power-off, this avoids in secondary control voltage when being unable to control electrical equipment,
Primary circuit is broken down can not possibility of the disengagement failure circuit to bring about great losses with risk.
In order to guarantee the reliability and safety of operation, general under-voltage tripping control module is built in breaker, grasps
Author is invisible, also untouchable.Under-voltage tripping control module starts to charge after secondary successful connection.
Common, when maintenance or debugging, operator is considered as safe non-transformer after closing control power supply, to electrical
Equipment, electrical component are safeguarded and are overhauled.If this when of under-voltage tripping control module inside have damaging components or
Tripping coil open circuit, then voltage will persistently be held, this is great security risk for operator.In addition, breaker not
Close a floodgate debugging during, appliance component is overhauled or is verified circuit it is whether correct when operator can also be made
At security threat.
Utility model content
The technical problem to be solved by the utility model is to overcome the shortcomings of that the prior art in terms of safety, provides one
The safer reliable under-voltage tripping control module of kind.
The utility model specifically uses following technical scheme to solve above-mentioned technical problem:
A kind of under-voltage tripping control module is inputted including the DC voltage input end inputted for DC voltage
The under-voltage function coil OT1 and charging resistor R of DC voltage control, capacitor C, circuit breaker tripping coil OT2, by under-voltage function
Normally closed switch S1, the circuit-breaker status auxiliary switch QF of energy coil OT1 control；Circuit breaker tripping coil OT2 and switch S1 and
In parallel with capacitor C after circuit-breaker status auxiliary switch QF series connection, the circuit after parallel connection is connected with charging resistor R, the electricity after series connection
Road and under-voltage function coil OT1 are connected in parallel between DC voltage input end；When breaker is in "on" position, breaker shape
State auxiliary switch QF is in "on" position；When breaker is in gate-dividing state, circuit-breaker status auxiliary switch QF is in separating brake shape
State；The under-voltage tripping control module further includes the indicator light L being arranged in parallel with capacitor C, for under-voltage tripping control mould
The electrification of block indicates.
Further, the under-voltage tripping control module further includes electric discharge device, and the electric discharge device includes electric discharge electricity
Rs and discharge switch S is hindered, it is in parallel with capacitor C after the two series connection.
Preferably, discharge switch S is delay switch.
Preferably, the under-voltage tripping control module further includes the fairing that direct-flow input end front end is arranged in, whole
Stream is arranged for will enter into the voltage commutation of DC voltage input end into DC voltage.
Preferably, the pick-up voltage of under-voltage function coil OT1 is the 35% of breaker voltage rating.
Following technical scheme can also be obtained according to identical invention thinking:
A kind of breaker, including as above under-voltage tripping control module described in any technical solution.
Compared with prior art, technical solutions of the utility model have the advantages that
The utility model, can be in electrification situation by increasing charged display device in under-voltage tripping control module circuit
Under indicated, effectively increase safety；The utility model also further increases electric discharge device, when finding electrification
System safety can be further improved by electric discharge device by the electrically charged timely release of institute in under-voltage tripping control module circuit
Reliability.
Detailed description of the invention
Fig. 1 is the circuit diagram of the utility model under-voltage tripping one preferred embodiment of control module；
Fig. 2 is the circuit diagram of the utility model under-voltage tripping one preferred embodiment of control module.
Specific embodiment
The technical solution of the utility model is described in detail with reference to the accompanying drawing:
Fig. 1 shows a kind of preferred embodiment of the circuit of under-voltage tripping control module.As shown in Figure 1, a kind of owe electricity
Pressure-off button control module, including the DC voltage input end (end a and the end b) inputted for DC voltage, the direct current inputted
The under-voltage function coil OT1 and charging resistor R of voltage-controlled system, capacitor C, circuit breaker tripping coil OT2, by under-voltage function coil
Normally closed switch S1, the circuit-breaker status auxiliary switch QF of OT1 control；Circuit breaker tripping coil OT2 and switch S1 and breaker
It is in parallel with capacitor C after state auxiliary switch QF series connection, it is in parallel after circuit connect with charging resistor R, the circuit after series connection with it is deficient
Pressure function coil OT1 is connected in parallel between DC voltage input end and (is connected between the end a and the end b)；Breaker, which is in, to be closed
When lock state, circuit-breaker status auxiliary switch QF is in "on" position；When breaker is in gate-dividing state, circuit-breaker status auxiliary
Switch QF is in gate-dividing state；
It further include the fairing Z(such as diode for being set to DC voltage input end front end to be suitable for alternating current
Rectification circuit), by AC rectification at being that under-voltage function coil OT1 and capacitor C charge after direct current.
Capacitor C is started to charge by charging resistor R after under-voltage tripping control module is powered, at this time under-voltage functional line
It encloses OT1 to be attracted, the normally closed switch S1 in the circuit circuit breaker tripping coil OT2 is disconnected, the OT1 when voltage is lower than voltage rating 35%
It is attracted and keeps to fail, normally closed switch S1 restores closure, at this time if breaker is in "on" position, that is, circuit-breaker status auxiliary
Switch QF is in "on" position, then capacitor C can take off mouth line circle OT2 to breaker and discharge, circuit breaker release tripping coil
OT2 energized action, breaker open operation.
Increase charged display device and electric discharge device in above-mentioned under-voltage tripping control module circuit；The electrification is aobvious
Showing device include the indicator light L being arranged in parallel with capacitor C and with the concatenated resistance RL of indicator light L；The electric discharge device includes
Discharge resistance Rs and discharge switch S, it is in parallel with capacitor C after the two series connection.
When under-voltage tripping control module electrification, capacitor C is indicator light L power supply, and indicator light L is always on.And further exist
Under-voltage tripping increases discharging function in control module circuit, when needing to discharge, presses discharge switch S, passes through electric discharge electricity
It hinders RS to discharge the charge of capacitor C, ensures operator's safety.Particularly, delay switch can be used in discharge switch S, so that electric discharge
Circuit delay disconnects, so that under-voltage tripping control module has the fixed actual effect time, that is, ensures to owe electricity over time
Pressure-off button control module is in failure state；Discharge switch S is also possible to operate it by manually controlling, can be according to need
It discharges.
As shown in Fig. 2, Fig. 2 shows a kind of another preferred embodiment of the circuit of under-voltage tripping control module, at this
In embodiment, the input terminal front end of the under-voltage function coil OT1 is provided with the first fairing Z1, circuit breaker tripping coil
OT2 is in parallel with capacitor C after connecting with switch S1 and circuit-breaker status auxiliary switch QF, circuit and charging resistor R after parallel connection
Series connection, the front end of the input terminal of the circuit of above-mentioned device composition are provided with the second fairing Z2, the first fairing Z1 and the
Two fairing Z2 are connected in parallel, and the two is inputted by identical voltage source, and working principle is identical as Fig. 1 embodiment.
The under-voltage tripping control module of the utility model provides electrification alarm function for operator, effectively increases peace
Quan Xing.The utility model is furthermore achieved that discharging function when threading off module action without under-voltage, avoids breaker
Unnecessary separating brake movement, has ensured the reliability of once electrification.The utility model can realize under-voltage tripping control module
Electric discharge and safety inspection.
Claims (6)
- The control module 1. a kind of under-voltage is threaded off, including the DC voltage input end inputted for DC voltage, what is inputted is straight Flow voltage-controlled under-voltage function coil OT1 and charging resistor R, capacitor C, circuit breaker tripping coil OT2, by under-voltage function Normally closed switch S1, the circuit-breaker status auxiliary switch QF of coil OT1 control；Circuit breaker tripping coil OT2 and switch S1 and break In parallel with capacitor C after road device state auxiliary switch QF series connection, the circuit after parallel connection is connected with charging resistor R, the circuit after series connection It is connected in parallel between DC voltage input end with under-voltage function coil OT1；When breaker is in "on" position, circuit-breaker status Auxiliary switch QF is in "on" position；When breaker is in gate-dividing state, circuit-breaker status auxiliary switch QF is in gate-dividing state； It is characterized in that, the under-voltage tripping control module further includes the indicator light L being arranged in parallel with capacitor C, it is de- for under-voltage Detain the electrification instruction of control module.
- The control module 2. under-voltage as described in claim 1 is threaded off, which is characterized in that it further include electric discharge device, the electric discharge dress It sets including discharge resistance Rs and discharge switch S, it is in parallel with capacitor C after the two series connection.
- The control module 3. under-voltage as described in claim 1 is threaded off, which is characterized in that discharge switch S is delay switch.
- The control module 4. under-voltage as described in claim 1 is threaded off, which is characterized in that further include being arranged in direct-flow input end front end Fairing, fairing is used to will enter into the voltage commutation of DC voltage input end into DC voltage.
- The control module 5. under-voltage as described in claim 1 is threaded off, which is characterized in that the pick-up voltage of under-voltage function coil OT1 It is the 35% of breaker voltage rating.
- 6. a kind of breaker, which is characterized in that including the under-voltage tripping control module as described in any one of Claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820930517.4U CN208298769U (en) | 2018-06-15 | 2018-06-15 | A kind of under-voltage tripping control module and breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820930517.4U CN208298769U (en) | 2018-06-15 | 2018-06-15 | A kind of under-voltage tripping control module and breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208298769U true CN208298769U (en) | 2018-12-28 |
Family
ID=64700576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820930517.4U Active CN208298769U (en) | 2018-06-15 | 2018-06-15 | A kind of under-voltage tripping control module and breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208298769U (en) |
-
2018
- 2018-06-15 CN CN201820930517.4U patent/CN208298769U/en active Active
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