CN109638762B - Starter starting test protection device and method - Google Patents
Starter starting test protection device and method Download PDFInfo
- Publication number
- CN109638762B CN109638762B CN201910003505.6A CN201910003505A CN109638762B CN 109638762 B CN109638762 B CN 109638762B CN 201910003505 A CN201910003505 A CN 201910003505A CN 109638762 B CN109638762 B CN 109638762B
- Authority
- CN
- China
- Prior art keywords
- protection unit
- protection
- starter
- test
- controller
- 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.)
- Active
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Landscapes
- Breakers (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The invention discloses a starter starting test protection device, which comprises a starting power supply, a controller and a protection circuit, wherein the protection circuit is respectively provided with a first protection unit, a second protection unit and an overload detection unit, the first protection unit, the starting power supply, the second protection unit and the overload detection unit are sequentially connected, a control end of the first protection unit, a control end of the second protection unit and a signal end of the overload detection unit are respectively connected with the controller, and an output end of the overload detection unit is used for being connected with a starter. The invention also discloses a starter starting test protection method. The invention can automatically cut off the power supply when the starter or the test device fails, so that the starter stops the test, and the safety of products, equipment and personnel is protected.
Description
Technical Field
The invention relates to the technical field of engine tests, in particular to a starter starting test protection device and method.
Background
At present, when the starter is used for a starting test, alternating current is converted into direct current, so that the starter is used for a continuous starting and stopping test, namely dead starting (starting the engine when an ignition circuit is disconnected or the engine is closed), active starting (starting the engine when the ignition circuit is closed or the engine is opened), idling and stopping cyclic tests are carried out on the engine, when the starter or a test device fails in the test process, a relay contact in the starter cannot be disconnected, the starter is always in a starting state, the starting power is burnt out under the continuous high-power working state of the starter, and the starter and the starting power are possibly caused to fire when serious accidents occur. The existing starting test circuit schematic diagram is shown in fig. 1, the starter Q does not have any protection device in the test process, and when faults occur, the starter Q cannot stop the test and cut off the power supply, so that serious potential safety hazards exist.
Disclosure of Invention
The invention aims to solve the technical problems in the prior art, and aims to provide a starter starting test protection device capable of automatically cutting off a power supply to stop a starter when the starter or a test device fails.
The invention also provides a starter start test protection method capable of automatically cutting off power supply to stop the starter test when the starter or the test device fails.
In order to achieve the first object, the invention provides a starter starting test protection device, which comprises a starting power supply, a controller and a protection circuit, wherein the protection circuit is respectively provided with a first protection unit, a second protection unit and an overload detection unit, the first protection unit, the starting power supply, the second protection unit and the overload detection unit are sequentially connected, a control end of the first protection unit, a control end of the second protection unit and a signal end of the overload detection unit are respectively connected with the controller, and an output end of the overload detection unit is used for connecting a starter.
As a further improvement, the first protection unit comprises an air switch and a first contactor which are connected with each other, wherein the input end of the air switch is connected with an alternating current power supply, the output end of the first contactor is connected with the input end of the starting power supply, and the control end of the first contactor is the control end of the first protection unit.
Further, the second protection unit comprises a direct current main switch and a second contactor which are connected with each other, wherein the input end of the direct current main switch is connected with the output end of the starting power supply, the output end of the second contactor is connected with the input end of the overload detection unit, and the control end of the second contactor is the control end of the second protection unit.
Further, the overload detection unit is a direct current transducer.
Further, the controller is a PLC controller.
In order to achieve the second object, the present invention provides a starter start test protection method, which uses an overload detection unit to detect the actual current of a protection circuit in real time and feed back the actual current to a controller, the controller makes corresponding control on the protection circuit according to the actual current and test conditions, the specific control process is as follows,
dead start condition: if the actual current is greater than n1 times of the preset first working current or the actual current is equal to 0, judging that the starter or the test device fails, controlling the first protection unit and the second protection unit to cut off power supply by the controller, stopping the test and sending out an alarm prompt;
live start condition: if the actual current is greater than n2 times of the preset second working current or the actual current is equal to 0, judging that the starter or the test device fails, controlling the first protection unit and the second protection unit to cut off the power supply by the controller, stopping the test and sending out an alarm prompt;
idle speed working condition: if the actual current is greater than 0, judging that the starter or the test device fails, and controlling the first protection unit and the second protection unit to cut off the power supply by the controller, stopping the test and sending out an alarm prompt;
and (3) stopping working conditions: if the actual current is greater than 0, judging that the starter or the test device fails, and controlling the first protection unit and the second protection unit to cut off the power supply by the controller, stopping the test and sending out an alarm prompt.
Advantageous effects
Compared with the prior art, the invention has the advantages that: the actual working current of the starter is detected in real time through the overload detection unit, and when the starter or the test device fails, the controller controls the first protection unit and the second protection unit to automatically cut off the power supply to stop the starter test, so that the starting power supply, products, equipment and personnel are protected.
Drawings
FIG. 1 is a circuit diagram of a conventional technique;
fig. 2 is a circuit diagram of the present invention.
Wherein: the device comprises a 1-controller, a 2-starter, an A-first protection unit, a B-second protection unit, a C-overload detection unit, a T-starting power supply, a QF-air switch, a KM 1-first contact switch, a KM 2-second contact switch, a JK-direct current main switch, a KA-relay, an S1-automatic switch and an S2-manual switch.
Detailed Description
The invention will be further described with reference to specific embodiments in the drawings.
Referring to fig. 1-2, a starter start test protection device comprises a start power supply T and a controller 1, and further comprises a protection circuit, wherein the protection circuit is respectively provided with a first protection unit a, a second protection unit B and an overload detection unit C, the first protection unit a, the start power supply T, the second protection unit B and the overload detection unit C are sequentially connected, a control end of the first protection unit a, a control end of the second protection unit B and a signal end of the overload detection unit C are respectively connected with the controller 1, and an output end of the overload detection unit C is used for being connected with a starter 2.
The first protection unit A comprises an air switch QF and a first contactor KM1 which are connected with each other, wherein the input end of the air switch QF is connected with an alternating current power supply, the output end of the first contactor KM1 is connected with the input end of a starting power supply T, and the control end of the first contactor KM1 is the control end of the first protection unit A.
The second protection unit B comprises a direct current main switch JK and a second contactor KM2 which are connected with each other, wherein the input end of the direct current main switch JK is connected with the output end of a starting power supply T, the output end of the second contactor KM2 is connected with the input end of an overload detection unit C, and the control end of the second contactor KM2 is the control end of a second protection unit A.
The overload detection unit C is a direct current transducer, the overload detection unit C detects the actual current of the protection circuit in real time and feeds the actual current back to the controller 1, and the controller 1 is a PLC controller.
The working principle of the device is as follows: the method comprises the steps that a direct current main switch JK is closed, an automatic switch S1 or a manual switch S2 is closed, a relay KA is electrically closed, a controller 1 controls a first contactor KM1 and a second contactor KM2 to be conducted, a starter 2 is electrically operated, an overload detection unit C detects actual working current of the starter 2 in real time and feeds the actual working current back to the controller 1, and when the actual working current is abnormal, the controller 1 controls the first contactor KM1 and the second contactor KM2 to cut off a power supply.
A starter start test protection method uses an overload detection unit C to detect the actual current of a protection circuit in real time and feed the actual current back to a controller 1, the controller 1 makes corresponding control on the protection circuit according to the actual current and test working conditions, the specific control process is as follows,
dead start condition: if the actual current is greater than n1 times of the preset first working current or the actual current is equal to 0, judging that the starter or the test device fails, controlling the first protection unit A and the second protection unit B to cut off the power supply by the controller 1, stopping the test and sending out an alarm prompt, wherein the value of n1 can be set according to the actual situation, and in the embodiment, the value of n1 is 10;
live start condition: if the actual current is greater than n2 times of the preset second working current or the actual current is equal to 0, judging that the starter or the test device fails, controlling the first protection unit A and the second protection unit B to cut off the power supply by the controller 1, stopping the test and sending out an alarm prompt, wherein the value of n2 can be set according to the actual situation, and in the embodiment, the value of n2 is 10;
idle speed working condition: if the actual current is greater than 0, judging that the starter or the test device fails, and controlling the first protection unit A and the second protection unit B to cut off the power supply by the controller 1, stopping the test and sending out an alarm prompt;
and (3) stopping working conditions: if the actual current is greater than 0, judging that the starter or the test device fails, and controlling the first protection unit A and the second protection unit B to cut off the power supply by the controller 1, stopping the test and sending out an alarm prompt.
According to the invention, the actual working current of the starter is detected in real time through the overload detection unit, and when the starter or the test device fails, the controller controls the first protection unit and the second protection unit to automatically cut off the power supply to stop the test of the starter, so that the safety of a starting power supply, products, equipment and personnel is protected.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present invention, and these do not affect the effect of the implementation of the present invention and the utility of the patent.
Claims (5)
1. The starter starting test protection device comprises a starting power supply (T) and a controller (1), and is characterized in that: the protection circuit is provided with a first protection unit (A), a second protection unit (B) and an overload detection unit (C) respectively, the first protection unit (A), a starting power supply (T), the second protection unit (B) and the overload detection unit (C) are sequentially connected, a control end of the first protection unit (A), a control end of the second protection unit (B) and a signal end of the overload detection unit (C) are connected with the controller (1) respectively, and an output end of the overload detection unit (C) is used for being connected with a starter (2);
the using method of the device uses the overload detection unit (C) to detect the actual current of the protection circuit in real time and feed the actual current back to the controller (1), the controller (1) makes corresponding control on the protection circuit according to the actual current and the test working condition, the specific control process is as follows,
dead start condition: if the actual current is greater than n1 times of the preset first working current or the actual current is equal to 0, judging that the starter or the test device fails, and controlling the first protection unit (A) and the second protection unit (B) to cut off power supply by the controller (1), stopping the test and sending out an alarm prompt;
live start condition: if the actual current is greater than n2 times of the preset second working current or the actual current is equal to 0, judging that the starter or the test device fails, and controlling the first protection unit (A) and the second protection unit (B) to cut off power supply by the controller (1), stopping the test and sending out an alarm prompt;
idle speed working condition: if the actual current is greater than 0, judging that the starter or the test device fails, and controlling the first protection unit (A) and the second protection unit (B) to cut off power supply by the controller (1), stopping the test and sending out an alarm prompt;
and (3) stopping working conditions: if the actual current is greater than 0, judging that the starter or the test device fails, and controlling the first protection unit (A) and the second protection unit (B) to cut off the power supply by the controller (1), stopping the test and sending out an alarm prompt.
2. The starter start test protection device according to claim 1, wherein: the first protection unit (A) comprises an air switch (QF) and a first contactor (KM 1) which are connected with each other, wherein the input end of the air switch (QF) is connected with an alternating current power supply, the output end of the first contactor (KM 1) is connected with the input end of the starting power supply (T), and the control end of the first contactor (KM 1) is the control end of the first protection unit (A).
3. The starter start test protection device according to claim 1, wherein: the second protection unit (B) comprises a direct current main switch (JK) and a second contactor (KM 2) which are connected with each other, wherein the input end of the direct current main switch (JK) is connected with the output end of the starting power supply (T), the output end of the second contactor (KM 2) is connected with the input end of the overload detection unit (C), and the control end of the second contactor (KM 2) is the control end of the second protection unit (B).
4. The starter start test protection device according to claim 1, wherein: the overload detection unit (C) is a direct current transducer.
5. The starter start test protector according to any one of claims 1-4, wherein: the controller (1) is a PLC controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910003505.6A CN109638762B (en) | 2019-01-03 | 2019-01-03 | Starter starting test protection device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910003505.6A CN109638762B (en) | 2019-01-03 | 2019-01-03 | Starter starting test protection device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109638762A CN109638762A (en) | 2019-04-16 |
| CN109638762B true CN109638762B (en) | 2023-08-25 |
Family
ID=66056672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910003505.6A Active CN109638762B (en) | 2019-01-03 | 2019-01-03 | Starter starting test protection device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109638762B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6628485B1 (en) * | 1999-06-17 | 2003-09-30 | Abb Research Ltd | Apparatus for limiting an electrical current |
| CN102425522A (en) * | 2011-09-19 | 2012-04-25 | 奇瑞汽车股份有限公司 | Protective control system and method of vehicle starting engine |
| CN103004080A (en) * | 2010-07-29 | 2013-03-27 | 罗伯特·博世有限公司 | Electric motor, starting device, and method for operating a starting device |
| EP2690282A1 (en) * | 2011-03-15 | 2014-01-29 | Auto-Kabel Management GmbH | System for start current limitation, method for limiting a start current as well as use of a start current limitation system |
| CN203645309U (en) * | 2013-12-30 | 2014-06-11 | 中国石油天然气股份有限公司长庆石化分公司 | Three-phase motor overcurrent protection device |
| CN106549361A (en) * | 2015-09-16 | 2017-03-29 | WE Tech公司 | A kind of shaft generator device of ship |
| CN209072044U (en) * | 2019-01-03 | 2019-07-05 | 广西玉柴机器股份有限公司 | A kind of starter starting test protective device |
-
2019
- 2019-01-03 CN CN201910003505.6A patent/CN109638762B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6628485B1 (en) * | 1999-06-17 | 2003-09-30 | Abb Research Ltd | Apparatus for limiting an electrical current |
| CN103004080A (en) * | 2010-07-29 | 2013-03-27 | 罗伯特·博世有限公司 | Electric motor, starting device, and method for operating a starting device |
| EP2690282A1 (en) * | 2011-03-15 | 2014-01-29 | Auto-Kabel Management GmbH | System for start current limitation, method for limiting a start current as well as use of a start current limitation system |
| CN102425522A (en) * | 2011-09-19 | 2012-04-25 | 奇瑞汽车股份有限公司 | Protective control system and method of vehicle starting engine |
| CN203645309U (en) * | 2013-12-30 | 2014-06-11 | 中国石油天然气股份有限公司长庆石化分公司 | Three-phase motor overcurrent protection device |
| CN106549361A (en) * | 2015-09-16 | 2017-03-29 | WE Tech公司 | A kind of shaft generator device of ship |
| CN209072044U (en) * | 2019-01-03 | 2019-07-05 | 广西玉柴机器股份有限公司 | A kind of starter starting test protective device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109638762A (en) | 2019-04-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101853554B (en) | Fireproofing pre-warning monitoring method for unmanned base station and system thereof | |
| CN201966578U (en) | Arc extinguishing type electrical fireproof short circuit protection device | |
| CN102340127A (en) | Digitalized comprehensive motor protector | |
| CN203269252U (en) | Automatic timed detecting device of elevator blackout emergency power source | |
| CN109638762B (en) | Starter starting test protection device and method | |
| CN204633463U (en) | Double-power controller | |
| CN204481514U (en) | Control box on novel electric vehicle cable | |
| CN212986165U (en) | Combustible gas reveals automatic cutout system | |
| CN112284586B (en) | Engine bench dynamometer system | |
| CN203143595U (en) | Control system of bucket conveyor | |
| CN205787938U (en) | Temperature control box and test device | |
| CN209072044U (en) | A kind of starter starting test protective device | |
| CN206250802U (en) | A kind of fire prevention charging pile of electric automobile | |
| CN211046001U (en) | Condensation control circuit is prevented to high-voltage board | |
| CN205689856U (en) | Natural gas emergency cut-off interlock | |
| CN104466927A (en) | Safety protection control device of cable head and control method of safety protection control device | |
| CN201885592U (en) | Sound and light alarm control circuit for safety of kiln | |
| CN102022920A (en) | Audible and visual alarming system and control circuit for kiln safety | |
| CN203553721U (en) | Monitoring device for heating tape of tank type breaker | |
| CN203456850U (en) | Ship emergency shutoff circuit | |
| CN201638340U (en) | Fire prevention pre-alarm device for machine room of base station | |
| CN105513250A (en) | Computer room direct-current power source fire protection system with remote alarm function | |
| CN201804237U (en) | Optical screen controller with real-time monitoring function | |
| CN210867278U (en) | DC48V intelligent PLC distribution box | |
| CN206111511U (en) | Air compressor's PLC opens and stops feeding back pulse control circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |