CN207938553U - DW15 type universal circuit breaker automatic switching-on devices - Google Patents
DW15 type universal circuit breaker automatic switching-on devices Download PDFInfo
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- CN207938553U CN207938553U CN201721740636.5U CN201721740636U CN207938553U CN 207938553 U CN207938553 U CN 207938553U CN 201721740636 U CN201721740636 U CN 201721740636U CN 207938553 U CN207938553 U CN 207938553U
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- circuit breaker
- universal circuit
- contactor
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- normally opened
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Abstract
The utility model discloses a kind of DW15 types universal circuit breaker automatic switching-on device, when solving interruption maintenance recovery power transmission in the prior art, the problem of electric power feeding time length.Including：The coil of Connection Time relay KT between the outlet of B phases and zero curve, it is the first branch that the first normally opened contact KT 1 and the first A.C. contactor KM1 of time relay KT, which connects, it is the second branch that the second normally opened contact KT 2 and the second A.C. contactor KM2 of time relay KT, which connects, and coil, the first branch and the second branch of time relay KT is in parallel；The normally opened contact both ends of first A.C. contactor KM1 and energy storage switch in parallel, energy storage are switched for controlling universal circuit breaker energy storage；The normally opened contact both ends of second A.C. contactor KM2 are in parallel with closing switch, and closing switch is for controlling universal circuit breaker combined floodgate.Have the beneficial effect that shortening case becomes with cell change to the recovery electric power feeding time of user, increases electricity sales amount.
Description
Technical field：
The utility model is related to technical field of electric power, more particularly to a kind of DW15 types universal circuit breaker automatic switching-on device.
Background technology：
DW15 type low pressure universal circuit breakers are mainly used to distribute electric energy and protection circuit equipment, have the mistake to power-supply device
It carries, under-voltage and short-circuit defencive function.
The tank circuit of DW15 type low pressure universal circuit breakers, energy-storage function could be carried out by being only manually pressed by；DW15 types are low
The closing circuit of universal circuit breaker is pressed, the conjunction of DW15 type low pressure universal circuit breakers could be carried out by being only manually pressed by switch knob
Lock function；When 10kV line outages, which are overhauled, terminates to restore power transmission, all universal circuit breakers are required for operating personnel on circuit
It shows up and presses energy storage and switch knob, extend electric power feeding time, cause the waste of human and material resources.
Invention content：
The utility model provides a kind of DW15 types universal circuit breaker automatic switching-on device, to solve to have a power failure in the prior art
When maintenance restores power transmission, all universal circuit breakers are required for showing up carries out energy storage and combined floodgate manually, extends electric power feeding time, causes
The problem of waste of human and material resources.
The utility model provides a kind of DW15 types universal circuit breaker automatic switching-on device, including：The outlet of B phases and zero curve it
Between Connection Time relay KT coil, the first normally opened contact KT-1 of time relay KT and the first A.C. contactor KM1 go here and there
Connection is the first branch, and it is second that the second normally opened contact KT-2 and the second A.C. contactor KM2 of time relay KT, which connect,
Road, coil, the first branch and the second branch of time relay KT are in parallel；The normally opened contact two of first A.C. contactor KM1
End and energy storage switch in parallel, energy storage are switched for controlling universal circuit breaker energy storage；The normally opened contact two of second A.C. contactor KM2
End is in parallel with closing switch, and closing switch is for controlling universal circuit breaker combined floodgate.
Preferably, connecting an air switch between time relay KT and B phase outgoing line side.
Preferably, two pairs of normally-closed contacts of connecting between air switch and time relay KT, two pairs of normally-closed contacts
For the auxiliary normally-closed contact of universal circuit breaker.
The utility model advantageous effect includes：By the use of low pressure universal circuit breaker automatic switching-on device, case is shortened
Become and cell change is to the recovery electric power feeding time of user, increases electricity sales amount.Power distribution network power supply capacity is improved, Service Quality is improved
Amount.When back segment equipment fault causes universal circuit breaker to trip, universal circuit breaker automatic closing is primary, is opened with back segment branch air
Cooperation is closed, realizes selective excision faulty line, power transmission is restored to non-fault line.
Description of the drawings：
Attached drawing 1 is the secondary connection circuit diagram of a DW15 types universal circuit breaker in the prior art.
Attached drawing 2 is the secondary connection circuit of the DW15 type universal circuit breaker automatic switching-on devices of a width better embodiment
Figure.
Specific implementation mode：
In consideration of it, the utility model provides a kind of DW15 types universal circuit breaker automatic switching-on device, below in conjunction with explanation
Book attached drawing illustrates the preferred embodiment of the utility model.
As shown in fig.1, the tank circuit of DW15 type universal circuit breakers is introduced below.Energy storage button is pressed,
380V alternating currents are flowed out from C phase conductors, are led to using XK travel switch normally-closed contacts through connecting terminal 43 and DF auxiliary contacts
K1 intermediate relay coils are crossed, A phase conductors are returned to through connecting terminal 42, intermediate relay K1 is powered up；Intermediate relay K1 is dynamic
After work, 3 pairs of normally opened contacts of K1 are closed, and A phase conductor electric currents pass through connecting terminal 42,3 couples of K1 after energy storage motor M, and closure
Normally opened contact flows through connecting terminal 41, returns to C phase conductors, is powered up to energy storage motor M, energy storage motor work once electrified, pulls energy storage
Spring is low pressure universal circuit breaker spring mechanism energy storage.
The closing circuit of DW15 type universal circuit breakers is introduced below, presses switch knob, 380V alternating currents are from C phases
Conducting wire flows out, and release energy electromagnet coil through connecting terminal 44 and DT returns to A using DF auxiliary contacts by connecting terminal 42
Phase conductor can power up electromagnet DT moments to releasing；Release energy electromagnet DT energized actions, the release of universal circuit breaker operating mechanism spring
Energy, universal circuit breaker close a floodgate.
Following two circuits, respectively manual brake separating circuit and under-voltage automatic brake separating circuit, have no user's electric power feeding time
It influences, is only used as the function introduction to the circuit.
Manual brake separating circuit：Press opening button, 380V alternating currents are flowed out from A phase conductors, through connecting terminal 46,47, point
Lock button returns to C phases by connecting terminal 48 and leads using connecting terminal 45, auxiliary contact DF and shunt release F1 coils
Line powers up shunt release F1；Shunt release F1 energized actions pull open shunt opening spring, drive shunt opening contact to disconnect, DW15
Type low pressure universal circuit breaker separating brake.
Under-voltage automatic brake separating circuit：When distribution transformer low-pressure side voltage UAC is less than 330V or electric substation's outlet switch
Or when 10kV line switching separating brakes, after the under-voltage delay of capacitance, device for under-voltage releasing equipment Q1 actions, low pressure universal circuit breaker separating brake,
Protect electrical equipment not because brownout is burnt out.
As shown in fig.2, a kind of DW15 types universal circuit breaker automatic switching-on device, including：A kind of DW15 types universal circuit break
Device automatic switching-on device, which is characterized in that including：The coil of Connection Time relay KT, time between the outlet of B phases and zero curve
It is the first branch that the first normally opened contact KT-1 and the first A.C. contactor KM1 of relay KT, which connects, the of time relay KT
It is the second branch that two normally opened contact KT-2 connect with the second A.C. contactor KM2, the coil of time relay KT, the first branch with
And the second branch is in parallel；The normally opened contact both ends of first A.C. contactor KM1 and energy storage switch in parallel, energy storage are switched for controlling
Universal circuit breaker energy storage；The normally opened contact both ends of second A.C. contactor KM2 are in parallel with closing switch, and closing switch is for controlling
Universal circuit breaker closes a floodgate.
After the equipment interruption maintenance of low pressure universal circuit breaker back segment disconnects low pressure universal circuit breaker, since automatic closing fills
The power supply set is derived from low pressure universal circuit breaker front end, and automatic switching-on device action, low pressure universal circuit breaker can automatic closing.Cause
This, connects an air switch between time relay KT and B phase outgoing line side.
The long charged operation of automatic switching-on device, is easy to burn out.When for a long time, repeatedly combined floodgate is run automatic switching-on device
Afterwards, it is easy to happen the phenomenon that auxiliary normally-closed contact adhesion of low pressure universal circuit breaker is welded.Will appear again automatic switching-on device it is long when
Between charging operation the phenomenon that burning out.Therefore, two pairs of normally closed contacts are taken to be connected in series to automatically from low pressure universal circuit breaker auxiliary contact
In closing device wire inlet loop, after a pair of of normally closed contact is welded, another pair normally closed contact still can disconnect, and make automatic closing
Device powers off.It connects between air switch and time relay KT two pairs of normally-closed contacts, two pairs of normally-closed contacts are ten thousand
The auxiliary normally-closed contact of energy breaker.
Operation principle：When transformer low voltage busbar restores electricity, in the automatic switching-on device of low pressure universal circuit breaker
Time relay KT actions, by default delay, KT-1 normally opened contacts are closed, and A.C. contactor KM1 actions are connected in parallel on energy storage
The A.C. contactor normally opened contact KM1 in circuit is closed, and startup energy storage motor is universal circuit breaker energy storage.It is super after energy storage
Time relay KT is closed by default delay, normally opened contact KT-2, and A.C. contactor KM2 actions are connected in parallel on closing circuit
A.C. contactor normally opened contact KM2 is closed, and is started universal circuit breaker and is released the DT actions of energy electromagnet, low pressure universal circuit breaker closes a floodgate.
After low pressure universal circuit breaker closes a floodgate, the normally closed auxiliary contact DF of universal circuit breaker is disconnected, automatic switching-on device dead electricity.
Claims (3)
1. a kind of DW15 types universal circuit breaker automatic switching-on device, which is characterized in that including：Connect between the outlet of B phases and zero curve
The coil of time relay KT is connect, the first normally opened contact KT-1 of time relay KT connects with the first A.C. contactor KM1 is
The first branch, it is the second branch, time that the second normally opened contact KT-2 and the second A.C. contactor KM2 of time relay KT, which connect,
Coil, the first branch and the second branch of relay KT is in parallel；The normally opened contact both ends of first A.C. contactor KM1 and energy storage
Switch in parallel, energy storage are switched for controlling universal circuit breaker energy storage；The normally opened contact both ends of second A.C. contactor KM2 and combined floodgate
Switch in parallel, closing switch is for controlling universal circuit breaker combined floodgate.
2. DW15 types universal circuit breaker automatic switching-on device as described in claim 1, which is characterized in that in time relay KT
An air switch is connected between B phase outgoing line sides.
3. DW15 types universal circuit breaker automatic switching-on device as described in claim 1, which is characterized in that air switch and when
Between connect between relay KT two pairs of normally-closed contacts, two pairs of normally-closed contacts are the auxiliary normally-closed contact of universal circuit breaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721740636.5U CN207938553U (en) | 2017-12-14 | 2017-12-14 | DW15 type universal circuit breaker automatic switching-on devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721740636.5U CN207938553U (en) | 2017-12-14 | 2017-12-14 | DW15 type universal circuit breaker automatic switching-on devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207938553U true CN207938553U (en) | 2018-10-02 |
Family
ID=63646167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721740636.5U Expired - Fee Related CN207938553U (en) | 2017-12-14 | 2017-12-14 | DW15 type universal circuit breaker automatic switching-on devices |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207938553U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112615349A (en) * | 2020-12-08 | 2021-04-06 | 国网四川省电力公司攀枝花供电公司 | Low-voltage power distribution cabinet phase-loss protection device |
-
2017
- 2017-12-14 CN CN201721740636.5U patent/CN207938553U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112615349A (en) * | 2020-12-08 | 2021-04-06 | 国网四川省电力公司攀枝花供电公司 | Low-voltage power distribution cabinet phase-loss protection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181002 Termination date: 20181214 |
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| CF01 | Termination of patent right due to non-payment of annual fee |