CN204559114U - A.C. contactor reactance voltage falls control module - Google Patents

A.C. contactor reactance voltage falls control module Download PDF

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Publication number
CN204559114U
CN204559114U CN201520311957.8U CN201520311957U CN204559114U CN 204559114 U CN204559114 U CN 204559114U CN 201520311957 U CN201520311957 U CN 201520311957U CN 204559114 U CN204559114 U CN 204559114U
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China
Prior art keywords
contactor
circuit
power
coil
source
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Expired - Fee Related
Application number
CN201520311957.8U
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Chinese (zh)
Inventor
刘俊昌
常进
孙希良
刘江坤
李海港
郭卫华
陈芳
李志政
刘志诚
孙萍萍
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State Grid Corp of China SGCC
Anqiu Power Supply Co of State Grid Shandong Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
Anqiu Power Supply Co of State Grid Shandong Electric Power Co Ltd
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Priority to CN201520311957.8U priority Critical patent/CN204559114U/en
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Publication of CN204559114U publication Critical patent/CN204559114U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a kind of A.C. contactor reactance voltage and fall control module, comprise ac contactor coil and anti-shake electric coil, described ac contactor coil is electrically connected with AC power, described anti-shake electric coil is connected with automatic back-up source, and the charging end of described automatic back-up source connects described AC power; Also comprise single-chip microcomputer; the input of described single-chip microcomputer is connected with isolation sample circuit, microcontroller power supply accumulator, normal assay testing circuit and anti-shake electricity time adjustment and display circuit; described isolation sample circuit correspondence connects described AC power; the output control connection fault secure circuit of described single-chip microcomputer, described fault secure circuit switching controls connects described ac contactor coil and described anti-shake electric coil also corresponding control A.C. contactor.The utility model has Conversion fault and reactance voltage falls function, enhances the reliability of Controlling model, avoids causing the unplanned power failure of enterprise's electric device and enterprise to produce and stops work.

Description

A.C. contactor reactance voltage falls control module
Technical field
The utility model relates to a kind of electric control module, particularly relates to a kind of A.C. contactor control module.
Background technology
In electric power system in running, due to thunderbolt, short trouble reclosing, with reasons such as net main equipment startups, supply power voltage effective value may be caused to drop quickly to the 90%-10% of rated value, and the duration is 10ms to 1min, and this phenomenon is called " Voltage Drop ".Contactor contact during Voltage Drop may flick, and makes the unplanned power failure of business electrical equipment and causes shut-down, causing huge economic loss, is therefore badly in need of that research and development are a kind of has the contactor that Conversion fault function and reactance voltage fall function.
Utility model content
Technical problem to be solved in the utility model is to provide one and has Conversion fault and reactance voltage falls function, can effectively avoid causing the A.C. contactor reactance voltage of contactor action to fall control module because of module faults itself.
For solving the problems of the technologies described above, the technical solution of the utility model is: A.C. contactor reactance voltage falls control module, comprise the ac contactor coil for controlling A.C. contactor and anti-shake electric coil, described ac contactor coil is electrically connected with AC power, described anti-shake electric coil is connected with automatic back-up source, and the charging end of described automatic back-up source connects described AC power, also comprise single-chip microcomputer, the input of described single-chip microcomputer is connected with isolation sample circuit, microcontroller power supply accumulator, normal assay testing circuit and anti-shake electricity time adjust and display circuit, described isolation sample circuit correspondence connects described AC power, the output control connection fault secure circuit of described single-chip microcomputer, described fault secure circuit switching controls connects described ac contactor coil and described anti-shake electric coil also corresponding control A.C. contactor, between described AC power and described ac contactor coil, the ac-dc converter circuit be connected by described Single-chip Controlling is provided with between described automatic back-up source with described anti-shake electric coil.
As preferred technical scheme, described ac-dc converter circuit comprises strong exciting circuit and the low pressure holding circuit of the connection of described Single-chip Controlling, the input of described strong exciting circuit and described low pressure holding circuit is connected to described AC power and automatic back-up source, and the output of described strong exciting circuit and described low pressure holding circuit respectively corresponding control connection has described ac contactor coil and anti-shake electric coil.
As the improvement to technique scheme; described fault secure circuit comprises hospital switch; between described ac contactor coil and described AC power, between described automatic back-up source and described AC power, be provided with the normally-closed contact of described hospital switch, between described anti-shake electric coil and described automatic back-up source, be provided with the normally opened contact of described hospital switch.
As the further improvement to technique scheme, described microcontroller power supply accumulator comprises storage battery.
Owing to have employed technique scheme, A.C. contactor reactance voltage falls control module, comprise the ac contactor coil for controlling A.C. contactor and anti-shake electric coil, described ac contactor coil is electrically connected with AC power, described anti-shake electric coil is connected with automatic back-up source, and the charging end of described automatic back-up source connects described AC power, also comprise single-chip microcomputer, the input of described single-chip microcomputer is connected with isolation sample circuit, microcontroller power supply accumulator, normal assay testing circuit and anti-shake electricity time adjust and display circuit, described isolation sample circuit correspondence connects described AC power, the output control connection fault secure circuit of described single-chip microcomputer, described fault secure circuit switching controls connects described ac contactor coil and described anti-shake electric coil also corresponding control A.C. contactor, between described AC power and described ac contactor coil, the ac-dc converter circuit be connected by described Single-chip Controlling is provided with between described automatic back-up source with described anti-shake electric coil.Normal operating condition, described AC power is added on described ac contactor coil by described ac-dc converter circuit and makes it run, and as fault-free, described ac-dc converter circuit will cut off AC power, transfer DC low-voltage hold mode to; Described AC power is described automatic back-up source charging, and described automatic back-up source is as energy-storage travelling wave tube.Malfunction, described isolation sample circuit circulation detects described AC power, when sampled voltage lower than rated value 60% time, regard as Voltage Drop to occur, start reactance voltage and fall function, fault secure circuit work described in described Single-chip Controlling, disconnect between described AC power with described ac contactor coil and being connected, make to be connected between described automatic back-up source with described anti-shake electric coil, described automatic back-up source to be added on described anti-shake electric coil by described ac-dc converter circuit as power supply component and to make it run, control described A.C. contactor and remain adhesive.Normal operating condition is transferred to from malfunction; described isolation sample circuit cycle detection; the analysis of described normal assay testing circuit is at the appointed time once Voltage Drop terminates; then close reactance voltage and fall function; control described fault secure circuit work; switch and make to be connected between described AC power with described ac contactor coil, disconnect between described automatic back-up source with described anti-shake electric coil and being connected, recover A.C. contactor normal operating condition.Transfer disjunction state to from malfunction, described isolation sample circuit cycle detection, described normal assay testing circuit analyzes through after a while, and drop-off voltage recovers not yet, closes reactance voltage and falls, and stop the operation of A.C. contactor.The utility model has Conversion fault and reactance voltage falls function, enhance the reliability of Controlling model, take A.C. contactor as control object, can effectively avoid causing contactor action because of module faults itself, avoid causing the unplanned power failure of enterprise's electric device and enterprise to produce and stop work.
Accompanying drawing explanation
The following drawings is only intended to schematically illustrate the utility model and explain, does not limit scope of the present utility model.Wherein:
Fig. 1 is the structural representation of the utility model embodiment.
Embodiment
Below in conjunction with drawings and Examples, set forth the utility model further.In the following detailed description, the mode only by illustrating describes some one exemplary embodiment of the present utility model.Undoubtedly, those of ordinary skill in the art can recognize, when not departing from spirit and scope of the present utility model, can revise by various different mode to described embodiment.Therefore, accompanying drawing is illustrative with being described in essence, instead of for limiting the protection range of claim.
As shown in Figure 1, A.C. contactor reactance voltage falls control module, comprise the ac contactor coil for controlling A.C. contactor and anti-shake electric coil, described ac contactor coil is electrically connected with AC power, described anti-shake electric coil is connected with automatic back-up source, and the charging end of described automatic back-up source connects described AC power, also comprise single-chip microcomputer, the input of described single-chip microcomputer is connected with isolation sample circuit, microcontroller power supply accumulator, normal assay testing circuit and anti-shake electricity time adjust and display circuit, described isolation sample circuit correspondence connects described AC power, the output control connection fault secure circuit of described single-chip microcomputer, described fault secure circuit switching controls connects described ac contactor coil and described anti-shake electric coil also corresponding control A.C. contactor, between described AC power and described ac contactor coil, the ac-dc converter circuit be connected by described Single-chip Controlling is provided with between described automatic back-up source with described anti-shake electric coil.Normal operating condition, described AC power is added on described ac contactor coil by described ac-dc converter circuit and makes it run, and as fault-free, described ac-dc converter circuit will cut off AC power, transfer DC low-voltage hold mode to; Described AC power is described automatic back-up source charging, and described automatic back-up source is as energy-storage travelling wave tube.Malfunction, described isolation sample circuit circulation detects described AC power, when sampled voltage lower than rated value 60% time, regard as Voltage Drop to occur, start reactance voltage and fall function, fault secure circuit work described in described Single-chip Controlling, disconnect between described AC power with described ac contactor coil and being connected, make to be connected between described automatic back-up source with described anti-shake electric coil, described automatic back-up source to be added on described anti-shake electric coil by described ac-dc converter circuit as power supply component and to make it run, control described A.C. contactor and remain adhesive.Normal operating condition is transferred to from malfunction; described isolation sample circuit cycle detection; the analysis of described normal assay testing circuit is at the appointed time once Voltage Drop terminates; stipulated time is undertaken pre-setting and adjusting by described anti-shake electricity time adjustment and display circuit herein; then close reactance voltage and fall function; control described fault secure circuit work; switch and make to be connected between described AC power with described ac contactor coil; disconnect between described automatic back-up source with described anti-shake electric coil and being connected, recover A.C. contactor normal operating condition.Disjunction state is transferred to from malfunction, described isolation sample circuit cycle detection, described normal assay testing circuit analyzes through after a while, time is undertaken pre-setting and adjusting by described anti-shake electricity time adjustment and display circuit herein, drop-off voltage recovers not yet, closedown reactance voltage falls, and stops the operation of A.C. contactor.The present embodiment has Conversion fault and reactance voltage falls function, enhance the reliability of Controlling model, take A.C. contactor as control object, can effectively avoid causing contactor action because of module faults itself, avoid causing the unplanned power failure of enterprise's electric device and enterprise to produce and stop work.
Described ac-dc converter circuit comprises strong exciting circuit and the low pressure holding circuit of the connection of described Single-chip Controlling, the input of described strong exciting circuit and described low pressure holding circuit is connected to described AC power and automatic back-up source, and the output of described strong exciting circuit and described low pressure holding circuit respectively corresponding control connection has described ac contactor coil and anti-shake electric coil.Normal operating condition, described AC power is added on described ac contactor coil by described ac-dc converter circuit, strong exciting circuit work described in described Single-chip Controlling, described ac contactor coil is made to control A.C. contactor adhesive, as fault-free, between Late phase is seasonable after reliable adhesive, low pressure holding circuit work described in described Single-chip Controlling, disconnect described strong exciting circuit work, make A.C. contactor enter into low-voltage by the strong excitatory stage and keep the stage.Malfunction; fault secure circuit work described in described Single-chip Controlling; disconnect between described AC power with described ac contactor coil and being connected; make to be connected between described automatic back-up source with described anti-shake electric coil; strong exciting circuit work described in described Single-chip Controlling; described anti-shake electric coil is made to control A.C. contactor adhesive; between Late phase is seasonable after reliable adhesive; low pressure holding circuit work described in described Single-chip Controlling; disconnect described strong exciting circuit work, make A.C. contactor enter into low-voltage by the strong excitatory stage and keep the stage.
Described fault secure circuit comprises hospital switch; between described ac contactor coil and described AC power, between described automatic back-up source and described AC power, be provided with the normally-closed contact of described hospital switch, between described anti-shake electric coil and described automatic back-up source, be provided with the normally opened contact of described hospital switch.Described Single-chip Controlling, makes normal operating condition, is connected between described AC power with described ac contactor coil, disconnects between described automatic back-up source and described anti-shake electric coil; Make malfunction, disconnect between described AC power and described ac contactor coil, be connected between described automatic back-up source with described anti-shake electric coil, make the present embodiment have Conversion fault and reactance voltage falls function, enhance the reliability of Controlling model.
Described microcontroller power supply accumulator comprises storage battery, both can reserve power, can provide electric energy again for described single-chip microcomputer.
More than show and describe general principle of the present utility model, principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims (4)

1. A.C. contactor reactance voltage falls control module, it is characterized in that: comprise the ac contactor coil for controlling A.C. contactor and anti-shake electric coil, described ac contactor coil is electrically connected with AC power, described anti-shake electric coil is connected with automatic back-up source, and the charging end of described automatic back-up source connects described AC power, also comprise single-chip microcomputer, the input of described single-chip microcomputer is connected with isolation sample circuit, microcontroller power supply accumulator, normal assay testing circuit and anti-shake electricity time adjust and display circuit, described isolation sample circuit correspondence connects described AC power, the output control connection fault secure circuit of described single-chip microcomputer, described fault secure circuit switching controls connects described ac contactor coil and described anti-shake electric coil also corresponding control A.C. contactor, between described AC power and described ac contactor coil, the ac-dc converter circuit be connected by described Single-chip Controlling is provided with between described automatic back-up source with described anti-shake electric coil.
2. A.C. contactor reactance voltage as claimed in claim 1 falls control module, it is characterized in that: described ac-dc converter circuit comprises strong exciting circuit and the low pressure holding circuit of the connection of described Single-chip Controlling, the input of described strong exciting circuit and described low pressure holding circuit is connected to described AC power and automatic back-up source, and the output of described strong exciting circuit and described low pressure holding circuit respectively corresponding control connection has described ac contactor coil and anti-shake electric coil.
3. A.C. contactor reactance voltage as claimed in claim 2 falls control module; it is characterized in that: described fault secure circuit comprises hospital switch; between described ac contactor coil and described AC power, between described automatic back-up source and described AC power, be provided with the normally-closed contact of described hospital switch, between described anti-shake electric coil and described automatic back-up source, be provided with the normally opened contact of described hospital switch.
4. the A.C. contactor reactance voltage as described in claim 1,2 or 3 falls control module, it is characterized in that: described microcontroller power supply accumulator comprises storage battery.
CN201520311957.8U 2015-05-14 2015-05-14 A.C. contactor reactance voltage falls control module Expired - Fee Related CN204559114U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107359694A (en) * 2017-08-24 2017-11-17 上海德电气科技有限公司 Backup type contactor maintenance adaptively anti-shake electric installation and its method
CN111693854A (en) * 2020-06-24 2020-09-22 贵州天义电器有限责任公司 Circuit for simulating voltage drop and operation method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107359694A (en) * 2017-08-24 2017-11-17 上海德电气科技有限公司 Backup type contactor maintenance adaptively anti-shake electric installation and its method
CN107359694B (en) * 2017-08-24 2023-05-16 上海一德电气科技有限公司 Backup contactor holding type self-adaptive anti-interference device and method thereof
CN111693854A (en) * 2020-06-24 2020-09-22 贵州天义电器有限责任公司 Circuit for simulating voltage drop and operation method thereof

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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: 20150812

Termination date: 20160514