CN109474062A - Step down side switchs automatic closing control device - Google Patents
Step down side switchs automatic closing control device Download PDFInfo
- Publication number
- CN109474062A CN109474062A CN201811603567.2A CN201811603567A CN109474062A CN 109474062 A CN109474062 A CN 109474062A CN 201811603567 A CN201811603567 A CN 201811603567A CN 109474062 A CN109474062 A CN 109474062A
- Authority
- CN
- China
- Prior art keywords
- step down
- down side
- switch
- circuit
- side switch
- 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.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
Abstract
The present invention relates in terms of intelligent control, it can automatically confirm that a kind of device of accident condition and automatic closing, belong to and becomes distribution control field, specifically include transformer and volt sensing relay, transformer is provided with step down side switch and high voltage side of transformer switch, step down side switch connection closing circuit, volt sensing relay is connected in the 380V ac circuit of step down side switch, and the passive normally opened contact of volt sensing relay is connected in the closing circuit of step down side switch.Power supply monitoring relay can be according to the case where judgement and the delay time of setting acts contact, switching signal is issued to transformer switch, this delay time can prevent alternating current from transient fault occur or dodge the influence ironed for control relay, after increasing the volt sensing relay, artificial and timely and effectively rapid power transmission can be saved completely, with also prevent there is also the alternating current of failure combined floodgates a possibility that, damage when over-voltage occurs in prevention alternating current to electrical equipment.
Description
Technical field
The present invention relates in terms of intelligent control, it can automatically confirm that a kind of device of accident condition and automatic closing, belong to
Become distribution control field.
Background technique
Currently, step down side switch can be due to no-voltage trip when the normal interruption maintenance of alternating current or failure
Separating brake.At this point, the place of mating diesel generating set, generating set can start automatically to power to the load.When alternating current incoming call, hair
Motor group receives the normal signal of alternating current, and generating set meeting automatic time delay separating brake is shut down, but is in the change of gate-dividing state at this time
Depressor low-side switch needs to become distribution operation personnel and closes a floodgate to on-site manual, could start to power.This power delivery mode, i.e.,
Cost of labor is increased, and loses the meaning quickly powered.Equally, in the unmanned value in grass roots or small-sized industrial enterprise
The transformer room kept needs the phenomenon that manually closing a floodgate commonplace after alternating current is sent a telegram here.
Summary of the invention
In view of defects in the prior art, the object of the present invention is to provide a kind of step down sides to switch automatic closing
The intelligent controlling device of signal, can rapidly, accurately obtain signal, and after the accuracy of confirmation signal, delay issues the letter that closes a floodgate
Number, so that step down side switch is closed a floodgate, powers in time.
To achieve the above object, the adopted technical solution is that: step down side switch automatic closing
Control device, including transformer and volt sensing relay, transformer are provided with step down side switch and transformer high-voltage
Side switch, step down side switch connection closing circuit, volt sensing relay are connected to step down side switch
In 380V ac circuit, the passive normally opened contact of volt sensing relay is connected to the closing circuit of step down side switch
In.
Further, series connection automatic/hand selection switch in the closing circuit of the step down side switch.
Further, the 380V that the volt sensing relay is installed between transformer and step down side switch is handed over
It flows back in road.
Further, the passive normally opened contact of the volt sensing relay is connected serially in closing circuit.
Further, the passive normally-closed contact of generating set output switch auxiliary contact is in series in the closing circuit.
Further, it is connected in parallel to step down side energy storing of switch electrical-coil and change respectively on the closing circuit
Depressor low-side switch coil without tension.
Further, the step down side switchs automatic closing control device, the course of work are as follows:
1) when mains failure, step down side switchs coil without tension, because losing voltage, and acts, makes step down side
Switch separating brake；
2) automatic/hand is selected to switch, is switched to automated location；
3) when city power recovery powers, alternating current send to step down side A1, B1, the C1 for switching upper end, at this time transformer low voltage
Energy storage indicator light and separating brake indicator light on the switch of side is bright；
4) when A1, B1, C1 are charged, volt sensing relay starts to monitor in three-phase four-line system whether there is also failures to show
As: where overvoltage protection value is selected as the 110% of voltage rating；Low-voltage protection value is selected as the 80% of voltage rating；Three-phase
Unbalanced protective rate is the 20% of voltage rating；Delay time is 0.1-10S.When failure is not present in alternating current, relay can
Passive normally opened contact is acted according to the delay time of setting, is closed closing circuit.
Further, the automatic closing circuit behavior process of the step down side switch automatic closing control device
Are as follows:
1) power supply C2 → automatic/hand selection switch → control power supply C3 → volt sensing relay normally opened contact closure is controlled
Normally-closed contact closure → step down side of → generating set output switch auxiliary contact switchs closing coil → control power supply
N；Closing circuit conducting, makes step down side switch closing coil electrification movement, and step down side switch closes a floodgate；
2) after step down side switch closes a floodgate, control power supply C2 → step down side switch auxiliary normally opened contact closure → control
Power supply C8 → combined floodgate indicator light is displayed in red → processed controls power supply N, and combined floodgate pilot lamp loop is connected at this time, and red light is bright, from dynamic circuit connector
Lock process is completed.
The beneficial effects of the present invention are: power supply monitoring relay can according to the case where judgement and the delay time of setting will touch
Point movement issues switching signal to transformer switch, this delay time can prevent alternating current from transient fault occur or dodging to iron pair
In the influence of control relay, after increasing the volt sensing relay, it can save artificial and timely and effectively send rapidly completely
Electricity, with also prevent there is also the alternating current of failure combined floodgates a possibility that, damage when over-voltage occurs in prevention alternating current to electrical equipment.
Detailed description of the invention
Fig. 1 is the work structuring figure of step down side switch automatic closing intelligent controlling device,
Fig. 1 appended drawing reference is as follows: 1, high voltage side of transformer switch Q1；2, transformer B；3, step down side switch Q2；4, certainly
Dynamic/manual selection switch SA1；5, volt sensing relay KJ, 6, generating set output switch auxiliary contact KF；7, transformer is low
Side is pressed to switch closing coil X；8, step down side energy storing of switch electrical-coil M1；9, step down side switchs coil without tension
T1。
Specific embodiment
In order to be more clear structure and function of the invention, with reference to the accompanying drawing 1 and specific embodiment to transformer
Low-side switch automatic closing intelligent controlling device is described as follows:
Step down side switchs automatic closing control device, including transformer and volt sensing relay, transformer are provided with
Step down side switch and high voltage side of transformer switch, step down side switch connection closing circuit, voltage monitoring relay
Device is connected in the 380V ac circuit of step down side switch, and the passive normally opened contact of volt sensing relay is connected to change
In the closing circuit of depressor low-side switch.
The volt sensing relay is for monitoring the power failure phenomenon occurred in three-phase four-line system, when power grid goes out
When existing phase shortage, overvoltage, under-voltage, three-phase imbalance, the volt sensing relay installed additional is accurately judged to true failure,
Signal is not just issued, such step down side switch would not close a floodgate, will not be sent to there is also the mains supply of failure
Load, directly contributes the damage of equipment.
The improvement structure of this control device is as follows:
1, in the control loop of former step down side switch Q2, increase automatic/hand and select switch SA1.
2, volt sensing relay KJ is installed at the 380V ac circuit between transformer B and step down side switch Q2
In.
3, in automatic closing circuit, the passive normally opened contact Ta and Tc of volt sensing relay KJ is concatenated.
4, it is equipped with the enterprise of generating set, in closing circuit, the nothing of concatenation generating set output switch auxiliary contact KF
Source normally-closed contact QF/1 and QF/2, when generating set exports switch separating brake, QF/1 and QF/2 contact closure.
The work course of the present apparatus is as follows:
1, when mains failure, step down side switchs coil without tension T1, because losing voltage, and acts, makes transformer low voltage
Side switch Q2 separating brake.
2, automatic/hand is selected into switch SA1, is switched to automated location.
3, when city power recovery powers, alternating current is sent to A1, B1, C1 of the upper end step down side switch Q2, and Q2 is opened at this time
The energy storage indicator light and separating brake indicator light shut are bright.
4, when A1, B1, C1 charge when, volt sensing relay KJ start monitor three-phase four-line system in whether there is also
Phenomenon of the failure: where overvoltage protection value is selected as the 110% of voltage rating；Low-voltage protection value is selected as voltage rating
80%；The protective rate of three-phase imbalance is the 20% of voltage rating；Delay time is 0.1-10S.When failure is not present in alternating current,
Relay can act Ta and the contact Tc according to the delay time of setting, be closed closing circuit.
5, entire automatic closing circuit behavior process is as follows:
1) i.e. control power supply C2 → automatic/hand selection switch SA1 → control power supply C3 → volt sensing relay KJ is normally opened
Contact (Ta and Tc) closure → generating set output switch auxiliary contact KF normally-closed contact (QF/1 and QF/2) closure → transformation
Device low-side switch closing coil X(Q2/31 and Q2/32) → control power supply N.Closing circuit conducting, opens step down side
Closing coil X electrification movement is closed, step down side switch Q2 closes a floodgate.
2) after Q2 switch closes a floodgate, control power supply C2 → step down side switch auxiliary normally opened contact (Q2/46 and Q2/
47) closure → control power supply C8 → combined floodgate indicator light (red) → control power supply N, combined floodgate pilot lamp loop is connected at this time, red light
Bright, automatic closing process is completed.
The step down side switchs automatic closing intelligent controlling device, and simple to install, easy to operate, defencive function is neat
Entirely and from there are electrical interlocks between standby generator sets, artificial and quick power transmission can be saved.
Listed above is only highly preferred embodiment of the present invention.It is clear that the invention is not restricted to which above embodiments, can also have
Many deformations.All deformations that those skilled in the art directly can export or associate from present disclosure,
It is considered as protection scope of the present invention.
Claims (8)
1. step down side switchs automatic closing control device, it is characterised in that: including transformer and volt sensing relay,
Transformer is provided with step down side switch and high voltage side of transformer switch, and step down side switch connects closing circuit,
Volt sensing relay be connected to step down side switch 380V ac circuit in, volt sensing relay it is passive normally opened
Contact is connected in the closing circuit of step down side switch.
2. step down side according to claim 1 switchs automatic closing control device, it is characterised in that: the transformation
Automatic/hand selection of connecting in the closing circuit of device low-side switch switchs.
3. step down side according to claim 1 switchs automatic closing control device, it is characterised in that: the voltage
Control relay is installed in the 380V ac circuit between transformer and step down side switch.
4. step down side according to claim 1 switchs automatic closing control device, it is characterised in that: the voltage
The passive normally opened contact of control relay is connected serially in closing circuit.
5. step down side according to claim 1 switchs automatic closing control device, it is characterised in that: the combined floodgate
The passive normally-closed contact of generating set output switch auxiliary contact is in series in circuit.
6. step down side according to claim 1 switchs automatic closing control device, it is characterised in that: the combined floodgate
Step down side energy storing of switch electrical-coil and step down side switch coil without tension are connected in parallel on circuit respectively.
7. step down side described in any one of -6 switchs automatic closing control device, feature according to claim 1
It is: the course of work are as follows:
1) when mains failure, step down side switchs coil without tension, acts because losing voltage, opens step down side
Close separating brake；
2) select switching to automated location automatic/hand；
3) when city power recovery powers, alternating current send to step down side A1, B1, the C1 for switching upper end, at this time transformer low voltage
Energy storage indicator light and separating brake indicator light on the switch of side is bright；
4) when A1, B1, C1 are charged, volt sensing relay starts to monitor in three-phase four-line system whether there is also failures to show
As: where overvoltage protection value is selected as the 110% of voltage rating；Low-voltage protection value is selected as the 80% of voltage rating；Three-phase
Unbalanced protective rate is the 20% of voltage rating；Delay time is 0.1-10S；When failure is not present in alternating current, relay can
Passive normally opened contact is acted according to the delay time of setting, is closed closing circuit.
8. step down side according to claim 7 switchs automatic closing control device, it is characterised in that: from dynamic circuit connector
Lock circuit behavior process are as follows:
1) power supply C2 → automatic/hand selection switch → control power supply C3 → volt sensing relay normally opened contact closure is controlled
Normally-closed contact closure → step down side of → generating set output switch auxiliary contact switchs closing coil → control power supply
N；Closing circuit conducting, makes step down side switch closing coil electrification movement, and step down side switch closes a floodgate；
2) after step down side switch closes a floodgate, control power supply C2 → step down side switch auxiliary normally opened contact closure → control
Power supply C8 → combined floodgate indicator light is displayed in red → processed controls power supply N, and combined floodgate pilot lamp loop is connected at this time, and red light is bright, from dynamic circuit connector
Lock process is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811603567.2A CN109474062A (en) | 2018-12-26 | 2018-12-26 | Step down side switchs automatic closing control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811603567.2A CN109474062A (en) | 2018-12-26 | 2018-12-26 | Step down side switchs automatic closing control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109474062A true CN109474062A (en) | 2019-03-15 |
Family
ID=65677903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811603567.2A Pending CN109474062A (en) | 2018-12-26 | 2018-12-26 | Step down side switchs automatic closing control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109474062A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202205674U (en) * | 2011-09-22 | 2012-04-25 | 昆明电研节能科技发展有限公司 | Low voltage electrodynamic type power-on automatic closing circuit after power failure of breaker |
| US20120267957A1 (en) * | 2011-04-20 | 2012-10-25 | Czarnecki Neil A | Transfer Switch For Automatically Switching Between Alternative Energy Source And Utility Grid |
| CN202840669U (en) * | 2012-09-11 | 2013-03-27 | 深圳市华诚电力设备有限公司 | Commercial power-generated power dual-power-supply automatic/hand-operated transition power supply circuit |
| CN203589836U (en) * | 2013-12-03 | 2014-05-07 | 大连普阳发电机组有限公司 | Intelligent control apparatus of starting signal for diesel generating set |
| CN203800694U (en) * | 2014-03-25 | 2014-08-27 | 武汉武新电气科技有限公司 | Dual-power-supply switching loop circuit |
| CN204407999U (en) * | 2014-08-26 | 2015-06-17 | 国家电网公司 | Two enter a mother hauls oneself willingly into runback control system |
| CN106410741A (en) * | 2015-07-27 | 2017-02-15 | 山东变电工有限公司 | Self-power transmission device of universal circuit breaker |
| CN107026449A (en) * | 2016-02-02 | 2017-08-08 | 艾默生网络能源（江门）有限公司 | A kind of source power distribution system |
-
2018
- 2018-12-26 CN CN201811603567.2A patent/CN109474062A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120267957A1 (en) * | 2011-04-20 | 2012-10-25 | Czarnecki Neil A | Transfer Switch For Automatically Switching Between Alternative Energy Source And Utility Grid |
| CN202205674U (en) * | 2011-09-22 | 2012-04-25 | 昆明电研节能科技发展有限公司 | Low voltage electrodynamic type power-on automatic closing circuit after power failure of breaker |
| CN202840669U (en) * | 2012-09-11 | 2013-03-27 | 深圳市华诚电力设备有限公司 | Commercial power-generated power dual-power-supply automatic/hand-operated transition power supply circuit |
| CN203589836U (en) * | 2013-12-03 | 2014-05-07 | 大连普阳发电机组有限公司 | Intelligent control apparatus of starting signal for diesel generating set |
| CN203800694U (en) * | 2014-03-25 | 2014-08-27 | 武汉武新电气科技有限公司 | Dual-power-supply switching loop circuit |
| CN204407999U (en) * | 2014-08-26 | 2015-06-17 | 国家电网公司 | Two enter a mother hauls oneself willingly into runback control system |
| CN106410741A (en) * | 2015-07-27 | 2017-02-15 | 山东变电工有限公司 | Self-power transmission device of universal circuit breaker |
| CN107026449A (en) * | 2016-02-02 | 2017-08-08 | 艾默生网络能源（江门）有限公司 | A kind of source power distribution system |
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| PB01 | Publication | ||
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Application publication date: 20190315 |