CN1848582B - Electrified wire netting supervisory relay for automatic phase correcting, possessing switch output - Google Patents
Electrified wire netting supervisory relay for automatic phase correcting, possessing switch output Download PDFInfo
- Publication number
- CN1848582B CN1848582B CN2006100753872A CN200610075387A CN1848582B CN 1848582 B CN1848582 B CN 1848582B CN 2006100753872 A CN2006100753872 A CN 2006100753872A CN 200610075387 A CN200610075387 A CN 200610075387A CN 1848582 B CN1848582 B CN 1848582B
- Authority
- CN
- China
- Prior art keywords
- electrical network
- output translator
- phase
- network
- splice
- 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.)
- Expired - Fee Related
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
- H02H7/097—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against wrong direction of rotation
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H11/00—Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result
- H02H11/004—Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result in case of incorrect phase sequence; with switching for obtaining correct phase sequence
Landscapes
- Emergency Protection Circuit Devices (AREA)
- Supply And Distribution Of Alternating Current (AREA)
- Control Of Ac Motors In General (AREA)
Abstract
The present invention discloses a monitoring relay for monitoring three-phase electrical network through automatic correction of phase sequence. The present invention is to provide such a device characterized by the following: breaking the equipment or machine in connection with the three-phase electrical network when the accident occurs in the electrical network; unbreaking through protection-switching self-correcting spiral direction when the phase sequence appears error. The monitor relay consists of first and second output transformers, wherein the first output transformer breaks the electrical network at accident time; the second output transformer does not break electrical network with protection-switching combination (4) automatically.
Description
Technical field
The present invention relates to a kind of power system monitor relay that utilizes automatic phase correction monitoring three-phase alternating current network.
Background technology
Such monitoring relay is used for changeable equipment in position or machine, as always with new electrical network connect and can not determine boundary value that whether line voltage equal to be scheduled to, direction of rotation whether correctly, whether do not exist mutually asymmetric or do not have compressor of air conditioner, cold storage container, building compressor or the crane of phase potential drop.Changeable equipment of open position or machine when mutually asymmetric electric network fault such as low-voltage or overvoltage and phase potential drop are appearring or wherein.The phase sequence of mistake, just the wrong direction of rotation of three phase network is not turn-offed from dynamic(al) correction by monitoring relay utilization protection-commutation combination.Do not need rewiring thus, and equipment or machine can there be ground maintenance operation break period to energy supply.
DE19613249A1 discloses a kind of circuit, will import left-handed field by this circuit and be converted to output dextrorotation field, and remaining external conductor is not connected with power take-off when an external conductor breaks down.Disconnection during other electric network fault just can not take place.
DE19713475C1 discloses a kind of circuit arrangement, can be used to monitor the wrong mutually of three-phase alternating current electrical network and potential drop mutually.Output error signal when mistake appears in three phase network.
Utilize known execution mode to need two interconnective monitoring relays have the power system monitor of proofreading and correct mutually automatically, perhaps be that electric network fault or equipment fault are irrespectively usually turn-offed.
Summary of the invention
Therefore the technical problem to be solved in the present invention provides a kind of equipment; be used at wrong as low-voltage or overvoltage and phase potential drop appear in electrical network or disconnection is connected with three phase network when mutually asymmetric equipment or machine; and when the phase sequence mistake, utilize protection-commutation combination from the dynamic(al) correction direction of rotation, and do not disconnect.
This technical problem is to solve by the monitoring relay that begins the described type of part; this monitoring relay comprises first output translator and second output translator; wherein this first output translator is used for when the electrical network mistake occurring disconnecting electrical network, and second output translator when the phase sequence mistake and protection-commutation combine from this phase sequence of dynamic(al) correction and do not disconnect electrical network.
By adopting of the present invention first output translator that the electrical network mistake is responded and second output translator that only just is connected when the phase sequence mistake, can only in an equipment, just solve these requirements.
In preferred embodiment, the output translator that is used to disconnect electrical network has the device that is used to be provided with time delay, can postpone electrical network by this device after the electrical network mistake occurring and disconnect.
In preferred embodiment, the output translator that is used to disconnect electrical network has the device that is used to be provided with lagged value, can control the access of electrical network after removing the electrical network mistake by this device.
Description of drawings
Utilize the embodiment that shows in the accompanying drawing to describe the present invention in detail below.
Fig. 1 illustrates has the monitoring relay of proofreading and correct mutually automatically that is used for three phase network is carried out power system monitor.
Embodiment
Fig. 1 illustrates the monitoring relay of proofreading and correct mutually automatically 1 that is used for three phase network is carried out power system monitor that has of the present invention.L1, L2, L3 represent the conductor of three phase network, M represents the machine that connects.As shown in the figure, first output translator, 2 usefulness input adapters 11 are connected to out splice going splice 14 when the electrical network fault-free.Separate with out splice going splice 14 when electrical network breaks down, input adapter 11 is connected to joint 12 and disconnects electrical network thus.The input adapter 21 of second output translator 3 is positioned at out splice going splice 24 when the phase sequence of three phase network is correct, three-phase current flows through the element of protection-commutation combination of representing with K5 thus, and phase sequence remains unchanged.Second output translator 3 is connected input adapter 21 automatically with input adapter 22 when the phase sequence mistake, and three-phase current flows through the element of protection-commutation combination 4 of representing with K6 thus, and proofreaies and correct phase sequence by exchange lead L1 and lead L3.
The present invention relates to a kind of the utilization in a word and proofread and correct the monitoring relay that three phase network is carried out power system monitor automatically mutually.The purpose of this invention is to provide a kind of equipment, it disconnects equipment or the machine that is connected with three phase network when mistake appears in electrical network, utilizes protection-commutation combination not disconnect from the dynamic(al) correction direction of rotation when the phase sequence mistake.This technical problem solves like this; monitoring relay comprises first and second output translators; wherein first output translator is used for when the electrical network mistake occurring disconnecting electrical network, and second output translator when the phase sequence mistake and protection-commutation combine from this phase sequence of dynamic(al) correction and do not disconnect electrical network.
Claims (3)
1. one kind is used to utilize automatically and proofreaies and correct the monitoring relay (1) that three phase network is carried out power system monitor mutually, it is characterized in that,
-the first output translator (2) is used for disconnecting electrical network when electric network fault occurring, and it has input adapter (11) and first out splice going splice (14) and second out splice going splice (12),
-the second output translator (3) is used for not disconnecting electrical network with protection-commutation combination (4) from the dynamic(al) correction phase sequence when the phase sequence mistake, and it has input adapter (21) and first out splice going splice (24) and second out splice going splice (22),
-wherein; first out splice going splice (14) of described first output translator (2) is connected with the input adapter (21) of described second output translator (3), and first out splice going splice (24) of described second output translator (3) can be connected with protection-commutation combination (4) with second out splice going splice (22).
2. monitoring relay according to claim 1 (1), wherein, described first output translator (2) that is used to disconnect electrical network has the device that is used to be provided with time delay, can postpone the disconnection of electrical network by this device after electric network fault occurring.
3. monitoring relay according to claim 1 and 2 (1), wherein, described first output translator (2) that is used to disconnect electrical network has the device that is used to be provided with lagged value, can control the access of electrical network after getting rid of electric network fault by this device that is used to be provided with lagged value.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200510016721 DE102005016721A1 (en) | 2005-04-11 | 2005-04-11 | Three-phase mains power system monitoring relay, has output change-over contact in connection with contactor reversal combination for automatic correction of phase sequence during incorrect phase sequence |
| DE102005016721.7 | 2005-04-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1848582A CN1848582A (en) | 2006-10-18 |
| CN1848582B true CN1848582B (en) | 2011-08-17 |
Family
ID=37026389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006100753872A Expired - Fee Related CN1848582B (en) | 2005-04-11 | 2006-04-11 | Electrified wire netting supervisory relay for automatic phase correcting, possessing switch output |
Country Status (4)
| Country | Link |
|---|---|
| CN (1) | CN1848582B (en) |
| DE (1) | DE102005016721A1 (en) |
| FR (1) | FR2894399B1 (en) |
| HK (1) | HK1093609A1 (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5164521B2 (en) * | 2007-10-22 | 2013-03-21 | サンデン株式会社 | Three-phase motor drive control device |
| US9623506B2 (en) | 2011-02-01 | 2017-04-18 | Illinois Tool Works Inc. | Fume extractor for welding applications |
| US9821351B2 (en) | 2011-11-11 | 2017-11-21 | Illinois Tool Works Inc. | Welding fume extractor |
| US9468958B2 (en) | 2012-03-16 | 2016-10-18 | Illinois Tool Works Inc. | Airborne component extractor with adjustable flow rates |
| US9839948B2 (en) | 2013-01-29 | 2017-12-12 | Illinois Tool Works Inc. | Fume evacuation system |
| US9272237B2 (en) | 2013-06-28 | 2016-03-01 | Illinois Tool Works Inc. | Three-phase portable airborne component extractor with rotational direction control |
| US10808953B2 (en) | 2013-06-28 | 2020-10-20 | Illinois Tool Works Inc. | Airborne component extractor with baffled debris collection |
| JP2015126544A (en) * | 2013-12-25 | 2015-07-06 | 東芝シュネデール・インバータ株式会社 | Phase sequence changeover device of three-phase power source |
| CN103997018B (en) * | 2014-05-09 | 2017-07-21 | 湖北慧中电子科技有限公司 | A kind of power phase automatic correction device |
| US10242317B2 (en) | 2014-11-25 | 2019-03-26 | Illinois Tool Works Inc. | System for estimating the amount and content of fumes |
| US11014132B2 (en) | 2015-07-16 | 2021-05-25 | Illinois Tool Works Inc. | Extractor with end-mounted positive pressure system |
| US11530826B2 (en) | 2015-07-16 | 2022-12-20 | Illinois Tool Works Inc. | Extractor with segmented positive pressure airflow system |
| CN106401930B (en) * | 2016-08-23 | 2017-11-28 | 杭州裕达自动化科技有限公司 | Air compressor intelligent control system |
| DK3456973T3 (en) * | 2017-09-19 | 2024-02-19 | Trevitech S R L | CONTROL APPARATUS FOR A PUMP SUPPLIED WITH THREE-PHASE ALTERNATING POWER AND METHOD OF CONTROLLING THE POWER SUPPLY TO SAID APPARATUS |
| US11083112B2 (en) | 2018-07-23 | 2021-08-03 | Hoffman Enclosures, Inc. | Three-phase electronic control unit for enclosure air conditioners |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4333119A (en) * | 1980-04-28 | 1982-06-01 | Purex Corporation | Power monitor system |
| CN1030501A (en) * | 1987-07-09 | 1989-01-18 | 金杏珍 | The three-phase phase-sequence recognition controller of overload of loss of phase protection |
| CN1077065A (en) * | 1992-03-09 | 1993-10-06 | 三菱电机株式会社 | Power-converting device |
| US6150792A (en) * | 1996-09-06 | 2000-11-21 | Andersson; Hans | Phase monitor |
-
2005
- 2005-04-11 DE DE200510016721 patent/DE102005016721A1/en not_active Withdrawn
-
2006
- 2006-04-11 FR FR0603189A patent/FR2894399B1/en active Active
- 2006-04-11 CN CN2006100753872A patent/CN1848582B/en not_active Expired - Fee Related
-
2007
- 2007-01-05 HK HK07100182.1A patent/HK1093609A1/en not_active IP Right Cessation
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4333119A (en) * | 1980-04-28 | 1982-06-01 | Purex Corporation | Power monitor system |
| CN1030501A (en) * | 1987-07-09 | 1989-01-18 | 金杏珍 | The three-phase phase-sequence recognition controller of overload of loss of phase protection |
| CN1077065A (en) * | 1992-03-09 | 1993-10-06 | 三菱电机株式会社 | Power-converting device |
| US6150792A (en) * | 1996-09-06 | 2000-11-21 | Andersson; Hans | Phase monitor |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2894399B1 (en) | 2014-05-23 |
| FR2894399A1 (en) | 2007-06-08 |
| DE102005016721A1 (en) | 2006-10-12 |
| HK1093609A1 (en) | 2007-03-02 |
| CN1848582A (en) | 2006-10-18 |
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