CN2116276U - Circuit breaker with time controlling and load limiting - Google Patents
Circuit breaker with time controlling and load limiting Download PDFInfo
- Publication number
- CN2116276U CN2116276U CN 92215154 CN92215154U CN2116276U CN 2116276 U CN2116276 U CN 2116276U CN 92215154 CN92215154 CN 92215154 CN 92215154 U CN92215154 U CN 92215154U CN 2116276 U CN2116276 U CN 2116276U
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- China
- Prior art keywords
- circuit breaker
- load
- time
- tonnage
- time control
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Abstract
The utility model relates to a circuit breaker with the time control and the load limit. A load limiting device is added in a disconnecting switch which is provided with a time controlling device. The outgoing signal of the time controlling device and the outgoing signal of the load limiting device are input into the performance element of the contact of the control breaker after passing through an AND gate logic element. The time setting button of the time controlling device and a load setting device in the load limiting device are arranged on a panel, and are blocked through the lead sealing after sheathing with a transparent making-disc casing. Although the circuit breaker reaches the electric time setting point, the circuit breaker can not trip if the electric current is overload. The power saving consciousness of the user is enhanced, which is profitable for the power saving. The utility model has the advantages of simple installation, convenient operation, safety, and easy management.
Description
The utility model relates to a kind of power circuit breaker that has functions such as time control and restriction load, is applicable to the electric load control switch of electrical management mechanism controls every profession and trade planned power consumption.
Electrical management mechanism has carried out planned power consumption for guaranteeing key industry and residential electricity consumption to some industry.Several electric power time control load devices that use are gone up by society at present.Generally all be used in combination with A.C. contactor or circuit breaker.This composite set volume is big, and device is complicated, and the user can close a floodgate the electric power time control on-load switch that some is advanced by force to controlling unit dismounting voluntarily.Though time control unit, performance element and Switch main body be being integral.The user also is difficult for closing a floodgate by force, in case but because of this device electricity consumption time one during to point in limited time, the super non-overloading of tube load, tripping operation without exception, adhesion is applied flexibly electricity and is also cut off together, very unfavorable operate as normal about industry, the also unfavorable saving consciousness that improves the user.
The purpose of this utility model is that a kind of volume of design is little, and installing is convenient, and is safe in utilization, and as long as the electricity consumption time arrives when prescribing a time limit point the load non-overloading.Just can not trip, and can have the circuit breaker that has the time control limit for tonnage of moving, the electric leakage of overload, wink of general circuit breaker, overvoltage, defencive function such as under-voltage and convenient management again.
The purpose of this utility model is achieved in that in the circuit breaker of timed unit is arranged, and adds a load limitation device.The output signal of timed unit and the output signal of load limitation device are together by behind " with a door " logic element.Be input in the performance element of contact in the control circuit breaker.Even as long as electricity consumption time is up point in limited time suitable control power consumption, does not allow the power consumption overload.Then " with door " logic element can not given the performance element actuating signal, circuit breaker can not trip, only after point arrives in limited time, " with door " logic element just provides actuating signal under the situation that power consumption overloads again, order about performance element with circuit breaker trip, the circuit breaker of this structure can strengthen people's saving consciousness.Timed unit in this device.Load limitation device and performance element and circuit breaker all can place in the casing, also can be combined into one by the form and the circuit breaker of different circuit breakers.Or as an annex of circuit breaker.This circuit breaker can manufacture various ways such as a utmost point, two utmost points, three utmost points or four utmost points as required.The time set in the timed unit and the setting of load capacity be by the electrical management personnel operation, and show on display screen, sets and finish by administrative staff the lead sealing of operation board outer cover.Make the user can not change set amount voluntarily.
Details are as follows to structure of the present utility model below in conjunction with accompanying drawing:
Fig. 1. have the shape assumption diagram of the circuit breaker of time control limit for tonnage;
Fig. 2. have the electric functional-block diagram of the circuit breaker of time control limit for tonnage;
Fig. 3. have the structure chart of current transformer of the circuit breaker of time control limit for tonnage;
Fig. 4. have the sampling control point adjustment electronic-circuit diagram of the circuit breaker of time control limit for tonnage.
(1) panel (2) handle (3) operation board outer cover (4) display screen (5) button (6) load setting apparatus (7) lead sealing (8) casing (9) circuit breaker (10) current transformer (11) load limitation device (12) load sampling control point adjustment (13) timed unit (14) " with door " logic element (15) performance element (16) iron core (17) winding
(N) zero line (A, B, C) phase line (D
1～D
12) diode (W
1～W
3) voltage-stabiliser tube C
1Electric capacity
The utility model is made up of breaker (9), load limitation device (11), timed unit (13), display screen (4), " with door " logic element (14), performance element (15) etc., and the time set in the timed unit (13) is finished by button (5). Load capacity in the load limitation device (11) is set and is finished by load setting apparatus (6). The numerical value that time control is set carries out numeral by display screen (4) and shows. Display screen (4), button (5) reach and carry Lotus setting apparatus (6) all is placed on the panel (1) of casing (8), and the outside is covered with a transparent operation board outer cover (3). In case after administrative staff regulate setting value, operation board outer cover (3) is blocked with lead sealing (7). The handle (2) that is contained on the panel (1) is used as manipulation breaker branch, power switch. Timed unit (13) is the output low level signal in the time of setting. Arrived the time that electricity consumption sets and then exported high level signal, load limitation device (11) output low level signal during electricity consumption in the load capacity of setting. When the phase line (A, B, C) of arbitrary phase upward overloads, then export high level signal. The output signal of timed unit (13) and load limitation device (11) all as the input of " with door " logic element (14), just can open when namely only having these two output signals all to be in high level state by " with door " logic element (14). The output of " with door " logic element (14) enters into the performance element (15) of control breaker (9) contact. After " with door " logic element (14) is opened. Performance element (15) action. Thereby the contact of breaker (9) is disconnected. Load limitation device (11) is made up of current transformer (10) and load sampling control point adjustment (12). The elementary of current transformer (10) is the power supply phase line (A, B, C) that links to each other with each phase contact of breaker (9). Secondary is one group of winding (17) on the iron core (16). Load sampling control point adjustment (12) is by each commutating phase device (D1～D
4）、（D
5～D
8）、（D
9～D
12) and load setting apparatus (6) composition. When the load capacity of arbitrary phase surpassed the setting value of load sampling control point adjustment (12), load limitation device (11) all can be exported high level. If control proper, each non-overloading all mutually then. Load limitation device (11) just can not exported high level. " with door " logic element (14) just can not be opened like this. Even arrived the electricity consumption setting-up time, do not tripped in the same old way. So just strengthened user's saving consciousness, normal operation is convenient to again in both using electricity wisely.
Use this breaker convenient, safety, manageable, favourable enhancing user's saving consciousness suits to promote the use of in all trades and professions.
For an embodiment: the circuit breaker that has the time control load limitation device of one four utmost point of 1～4 principle system with reference to the accompanying drawings.Year high sampling control point adjustment in the load limitation device is by voltage-stabiliser tube W
1～W
3, resistance R
1～R
6, capacitor C
1Form.Performance element 2P4M controllable silicon, Let it Be control circuit breaker contact in tripping coil.Time controller is the integrated circuit (IC) apparatus of a band microprocessor.
Claims (5)
1, a kind of circuit breaker that has the time control limit for tonnage is made up of circuit breaker (9), load limitation device (11), timed unit (13), display screen (4), " with door " logic element (14), performance element (15) etc.The output signal that it is characterized in that the output signal of timed unit (13) and load limitation device (11) is together by being input to the performance element (15) of the contact in the control circuit breaker (9) behind " with the door " logic element (14).
2, the circuit breaker that has the time control limit for tonnage according to claim 1 is characterized in that load limitation device (11) is made up of current transformer (10) and load sampling control point adjustment (12).
3, according to claim 1, the 2 described circuit breakers that have the time control limit for tonnage, it is characterized in that current transformer (10) elementary be to link to each other with each phase line (A, B, C) in the circuit breaker (9).Secondary is one group of winding (17) on the iron core (16).
4,, it is characterized in that load sampling control point adjustment (12) is by each commutating phase device (D according to claim 1, the 2 described circuit breakers that have the time control limit for tonnage
1～D
4), (D
5～D
8), (D
9～D
12) and load setting apparatus (6) composition.
5,, it is characterized in that time set button (5), load setting apparatus (6), the display screen (4) in the timed unit (13) all is contained on the panel (1) of casing (8) according to claim 1, the 2 described circuit breakers that have the time control limit for tonnage.Cover in the transparent operation board outer cover (3).And block by lead sealing (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92215154 CN2116276U (en) | 1992-02-18 | 1992-02-18 | Circuit breaker with time controlling and load limiting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92215154 CN2116276U (en) | 1992-02-18 | 1992-02-18 | Circuit breaker with time controlling and load limiting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2116276U true CN2116276U (en) | 1992-09-16 |
Family
ID=4959592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92215154 Granted CN2116276U (en) | 1992-02-18 | 1992-02-18 | Circuit breaker with time controlling and load limiting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2116276U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101923993A (en) * | 2010-07-09 | 2010-12-22 | 东北电力大学 | A kind of air switch that can be regularly |
| CN103166180A (en) * | 2013-03-25 | 2013-06-19 | 广东电网公司东莞供电局 | Method and device for judging overload shedding for power system transformer |
-
1992
- 1992-02-18 CN CN 92215154 patent/CN2116276U/en active Granted
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101923993A (en) * | 2010-07-09 | 2010-12-22 | 东北电力大学 | A kind of air switch that can be regularly |
| CN101923993B (en) * | 2010-07-09 | 2012-07-25 | 东北电力大学 | Timed air switch |
| CN103166180A (en) * | 2013-03-25 | 2013-06-19 | 广东电网公司东莞供电局 | Method and device for judging overload shedding for power system transformer |
| CN103166180B (en) * | 2013-03-25 | 2016-12-28 | 广东电网公司东莞供电局 | Power system transformer judges the method and device of overload cutting load |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |