CN101976819B - Mine explosion-proof alternative current (AC) vacuum electromagnetic starter - Google Patents
Mine explosion-proof alternative current (AC) vacuum electromagnetic starter Download PDFInfo
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- CN101976819B CN101976819B CN 201010533032 CN201010533032A CN101976819B CN 101976819 B CN101976819 B CN 101976819B CN 201010533032 CN201010533032 CN 201010533032 CN 201010533032 A CN201010533032 A CN 201010533032A CN 101976819 B CN101976819 B CN 101976819B
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Abstract
The invention discloses a mine explosion-proof alternating current (AC) vacuum electromagnetic starter, which comprises a starter body and a remote control device. The starter body comprises a linkage changeover switch, a first diode, a motor comprehensive protector, a 1# connection terminal and the like; and the remote control device comprises a second diode, a remote-end start button and the like. Due to the diodes, when the remote-end start button is pressed, the 1# connection terminal detects a direct current (DC) signal, and the motor comprehensive protector is conducted in a normal working state; and when a remote control lead is short-circuited, the 1# connection terminal detects an AC signal, and the motor comprehensive protector trips so as to avoid abnormal start. Moreover, the arranged motor comprehensive protector with protection functions for overload, overvoltage, under-voltage, electric leakage and the like guarantees the practicability and the reliability of the mine explosion-proof AC vacuum electromagnetic starter, and the arrangement of the linkage changeover switch provides option for realizing the multi-state control of the load, thereby enhancing the functions of the mine explosion-proof AC vacuum electromagnetic starter.
Description
Technical field
The present invention relates to a kind of electromagnetic starter, relate in particular to a kind of mining explosion-proof alternating-current vacuum electromagnetic starter.
Background technology
Vacuum magnetic starter is a kind of mine combined electrical apparatus commonly used, and it is mainly used to the control and protection motor, and vacuum magnetic starter is an important electric equipment in the mining industry.Therefore, require vacuum magnetic starter to have larger Current Control ability and more improve protective value.But the vacuum magnetic starter recent two decades that uses does not at present have large breakthrough technically, and its function ratio is more single, has many deficiencies in reliability, fail safe, practicality and technical performance.In addition, vacuum magnetic starter generally adopts the startup of Long-distance Control starter and stops, vacuum magnetic starter is comprised of with the remote control device that the starter body links to each other by control lead-in wire far away the starter body, but because control lead-in wire far away is long, complicated condition under the coal mine, many accidental causes can cause control lead-in wire far away to be extruded, to pound, to bump, and cause far controlling lead short circuit, vacuum magnetic starter starts voluntarily, safety is produced greatly threaten.
Summary of the invention
The object of the present invention is to provide that a kind of function is many, performance reliability, safe and practical flame-proof mine vacuum magnetic starter.
For achieving the above object, the invention provides a kind of mining explosion-proof alternating-current vacuum electromagnetic starter, comprise starter body and remote control device, described starter body comprises the three phase mains terminal, the isolation reversing switch, current transformer, the threephase load terminal, the first fuse, transformer, the second fuse, auxiliary relay, vacuum contactor, the interlock diverter switch that is consisted of by the first switch and second switch, the first diode, start button on the spot, stop button on the spot, integrated protector for electric motor, the 1# binding post, the 2# binding post, the 8# binding post, the 9# binding post, the 13# binding post, display screen, wherein, the three phase mains terminal, the isolation reversing switch, the main contacts of vacuum contactor, current transformer, the threephase load terminal links to each other successively, the upper end of the original grade coil of transformer is by wherein one linking to each other in the first fuse and the three phase mains terminal, wherein one link to each other in addition two in the lower end of the original grade coil of transformer and the three phase mains terminal, the upper end of the secondary coil of transformer is successively by the second fuse, the first auxiliary contact of auxiliary relay link to each other with an end of vacuum contactor, the other end of vacuum contactor links to each other with the 9# binding post, the lower end of the secondary coil of transformer links to each other with the 36V power input of integrated protector for electric motor, the Ib terminal of integrated protector for electric motor, the Ia terminal, the Ic terminal, the L2 terminal of GND terminal correspondence and current transformer, the L1 terminal, the L3 terminal, the 9# terminal links to each other, the 33# terminal of integrated protector for electric motor passes through the 3rd auxiliary contact of auxiliary relay successively, wherein one linking to each other in the 6th auxiliary contact of vacuum contactor and the three phase mains terminal, one end of the second relay of integrated protector for electric motor respectively with an end of auxiliary relay, one end of the first switch links to each other, the other end of the second relay of integrated protector for electric motor links to each other with the other end of the first switch, the output of the other end of auxiliary relay and the first diode, the 1# binding post, one end of the 4th auxiliary contact of vacuum contactor, the 1st detection signal input of integrated protector for electric motor links to each other, the input of the first diode links to each other with a contact of start button on the spot, on the spot another contact of start button respectively with an end of the upper terminal contacts of stop button on the spot, the other end of the 4th auxiliary contact of vacuum contactor links to each other, the other end of the upper terminal contacts of stop button links to each other with the 2# binding post on the spot, the 8# binding post links to each other with the 2nd detection signal input of integrated protector for electric motor by the second auxiliary contact of auxiliary relay, the 13# binding post links to each other with the 2nd detection signal input of integrated protector for electric motor by second switch, one end of the first relay of integrated protector for electric motor links to each other with an end of the first switch, one end of the other end of the first relay of integrated protector for electric motor and the first auxiliary contact of auxiliary relay, one end of the second fuse links to each other, and integrated protector for electric motor links to each other with display screen with power interface by serial ports;
Described remote control device comprises the second diode, far-end start button, far-end stop button, wherein, the output of the second diode links to each other with the 1# binding post, the input of the second diode links to each other with a contact of far-end start button, another contact of far-end start button links to each other with the 2# binding post with a contact of far-end stop button, and another contact of far-end stop button links to each other with the 9# binding post.
Mining explosion-proof alternating-current vacuum electromagnetic starter of the present invention also is provided with the resistance-capacitance protection device between current transformer and threephase load terminal.
Mining explosion-proof alternating-current vacuum electromagnetic starter of the present invention; described starter body also comprises the 5# binding post, and the 5# binding post links to each other with an end of the first relay of an end of the first auxiliary contact of an end of an end of the lower terminal contacts of stop button on the spot, the second fuse, auxiliary relay, integrated protector for electric motor respectively.
Mining explosion-proof alternating-current vacuum electromagnetic starter of the present invention, transformer are the tapped transformer of its original grade coil band.
Mining explosion-proof alternating-current vacuum electromagnetic starter of the present invention comprises starter body and remote control device; the interlock diverter switch that the starter body comprises auxiliary relay, vacuum contactor, be made of the first switch and second switch, the first diode, integrated protector for electric motor, 1# binding post etc., remote control device comprises the second diode, far-end start button, far-end stop button.Owing to be provided with the diode of unilateal conduction; when the far-end start button is pressed normal startup; what the 1# binding post detected is direct current signal; integrated protector for electric motor is carried out normal operating conditions; when control lead short circuit far away; what the 1# binding post detected is AC signal, integrated protector for electric motor tripping operation this moment, thus avoid unusual startup.In addition; owing to be provided with the integrated protector for electric motor of the defencive functions such as the loaded overload of tool, overvoltage, under-voltage, electric leakage; practicality and the reliability of mining explosion-proof alternating-current vacuum electromagnetic starter have been guaranteed; the setting of interlock diverter switch then provides selection for the multiposition control (for example manually or automatically control) that realizes load, thereby has strengthened the mining explosion-proof alternating-current vacuum electromagnetic starter function.
Description of drawings
Fig. 1 is the circuit theory diagrams of mining explosion-proof alternating-current vacuum electromagnetic starter of the present invention.
Embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described in detail:
With reference to shown in Figure 1, the mining explosion-proof alternating-current vacuum electromagnetic starter of present embodiment comprises starter body 1 and remote control device 2.
Wherein, starter body 1 comprises that the three phase mains terminal (is X1; X2; X3); isolation reversing switch HK; current transformer LH; the threephase load terminal (is D1; D2; D3); the first fuse RD1; the tapped transformer BK of original grade coil band; the second fuse RD2; auxiliary relay 1BJ; vacuum contactor ZJ; the interlock diverter switch that is used for the manual/auto control of drawing water that is consisted of by the first switch 1K1 and second switch 1K2; the first diode E1; start button QA on the spot; stop button TA on the spot; integrated protector for electric motor BHQ; the 1# binding post; the 2# binding post; the 8# binding post; the 9# binding post; the 13# binding post; display screen D.The three phase mains terminal; isolation reversing switch HK; the main contacts of vacuum contactor ZJ (is ZJ1; ZJ2; ZJ3); current transformer LH; the threephase load terminal links to each other successively; between current transformer LH and threephase load terminal, also be provided with the resistance-capacitance protection device RC for anti-overvoltage; the upper end of the original grade coil of transformer BK is by the first fuse RD1 and three phase mains terminal X1; X2; wherein one linking to each other among the X3; the lower end of the original grade coil of transformer BK and three phase mains terminal X1; X2; wherein one link to each other in addition two among the X3; the upper end of the secondary coil of transformer BK is successively by the second fuse RD2; the first auxiliary contact 1BJ1 of auxiliary relay 1BJ links to each other with the end of vacuum contactor ZJ; the other end of vacuum contactor ZJ links to each other with the 9# binding post; the lower end of the secondary coil of transformer BK links to each other with the 36V power input of integrated protector for electric motor BHQ; the Ib terminal of integrated protector for electric motor BHQ; the Ia terminal; the Ic terminal; the L2 terminal of GND terminal correspondence and current transformer LH; the L1 terminal; the L3 terminal; the 9# terminal links to each other; the 33# terminal of integrated protector for electric motor BHQ passes through the 3rd auxiliary contact 1BJ3 of auxiliary relay 1BJ successively; wherein one linking to each other in the 6th auxiliary contact ZJ6 of vacuum contactor ZJ and the three phase mains terminal; one end of the second relay J 2 of integrated protector for electric motor BHQ respectively with the end of auxiliary relay 1BJ; the end of the first switch 1K1 links to each other; the other end of the second relay J 2 of integrated protector for electric motor BHQ links to each other with the other end of the first switch 1K1; the output of the other end of auxiliary relay 1BJ and the first diode E1; the 1# binding post; the end of the 4th auxiliary contact ZJ4 of vacuum contactor ZJ; the 1st detection signal input of integrated protector for electric motor BHQ links to each other; the input of the first diode E1 links to each other with the contact of start button QA on the spot; on the spot another contact of start button QA respectively with an end of the upper terminal contacts of stop button TA on the spot; the other end of the 4th auxiliary contact ZJ4 of vacuum contactor ZJ links to each other; the other end of the upper terminal contacts of stop button TA links to each other with the 2# binding post on the spot; the 8# binding post links to each other with the 2nd detection signal input of integrated protector for electric motor BHQ by the second auxiliary contact 1BJ2 of auxiliary relay 1BJ; the 13# binding post links to each other with the 2nd detection signal input of integrated protector for electric motor BHQ by second switch 1K2; one end of the first relay J 1 of integrated protector for electric motor BHQ links to each other with the end of the first switch 1K1; the end of the first auxiliary contact 1BJ1 of the other end of the first relay J 1 of integrated protector for electric motor BHQ and auxiliary relay 1BJ; the end of the second fuse RD2 links to each other, and integrated protector for electric motor BHQ links to each other with display screen D with power interface by serial ports.
Wherein, remote control device 2 comprises the second diode E2, far-end start button QA ', far-end stop button TA ', the output of the second diode E2 links to each other with the 1# binding post, the input of the second diode E2 links to each other with the contact of far-end start button QA ', another contact of far-end start button QA ' links to each other with the 2# binding post with the contact of far-end stop button TA ', and another contact of far-end stop button TA ' links to each other with the 9# binding post.
In addition; starter body 1 can also comprise the 5# binding post of a reservation; this 5# binding post links to each other with an end of the first relay J 1 of the end of the first auxiliary contact 1BJ1 of the end of an end of the lower terminal contacts of stop button TA on the spot, the second fuse RD2, auxiliary relay 1BJ, integrated protector for electric motor BHQ respectively, can be used for realizing next stage cascade control or export as power supply.
During use, the three phase mains terminal is linked to each other with three phase mains, the threephase load terminal links to each other with motor, and the 8# binding post links to each other with lower limit water-level probe for detection of the lower limit water level, and the 13# binding post links to each other with upper limit water-level probe for detection of upper limit water level.Three phase mains enters starter through the three phase mains terminal, and main contacts, the threephase load terminal of isolation reversing switch HK, vacuum contactor ZJ through being used for control motor forward and backward are connected motor, and lower mask body is introduced its course of work:
Close a floodgate: press local boot button QA, vacuum contactor ZJ adhesive, process is as follows: (the first switch 1K1 is closed manually the time by the first relay J 1 → the first switch 1K1 of the 36V power supply of the secondary coil of transformer BK output → the second fuse RD2 → integrated protector for electric motor BHQ, second switch 1K2 opens) → (during local control, 2# binding post and 9# binding post are shorted together auxiliary relay 1BJ → the first diode E1 → local boot button QA → local stop button TA → 2# binding post; During far-end control, be 2# and 9# disconnection on the starter, local boot button QA on the starter is inoperative at this moment, can only be closed a floodgate by the far-end start button QA ' control of remote control device 2, this moment, 2# binding post and 9# binding post were shorted together by far-end stop button TA ') → 9# binding post (being the other end of the 36V of transformer BK secondary coil output), form the loop, auxiliary relay 1BJ adhesive, the first auxiliary contact 1BJ1 of auxiliary relay 1BJ is closed, vacuum contactor ZJ gets electric adhesive, the main contacts of vacuum contactor ZJ is closed, send electricity to load (being motor).After the vacuum contactor ZJ adhesive, its 4th auxiliary contact ZJ4 is closed, carries out self-insurance, keeps normal operation.
Overload protection: current transformer LH detects current signal; from its L1 terminal; the L2 terminal; the output of L3 terminal; advance the Ia terminal of integrated protector for electric motor BHQ; the Ib terminal; the Ic terminal; integrated protector for electric motor BHQ carries out filtering with it; after the A/D conversion; compare with setting load current value in the integrated protector for electric motor BHQ; execution action when actual current exceeds the setting load current value; the first relay J 1 of integrated protector for electric motor BHQ is opened; auxiliary relay 1BJ discharges; vacuum contactor ZJ discharges; the starter tripping operation, display screen D shows overload fault and overload current simultaneously.
Short-circuit protection: current transformer LH detects current signal; from its L1 terminal, L2 terminal, the output of L3 terminal; advance Ia terminal, Ib terminal, the Ic terminal of integrated protector for electric motor BHQ; after integrated protector for electric motor BHQ carries out filtering, A/D conversion with it; compare with setting short-circuit current value in the integrated protector for electric motor BHQ; when surpassing the setting short-circuit current value; execution action; the first relay J 1 of integrated protector for electric motor BHQ is opened; auxiliary relay 1BJ discharges; vacuum contactor ZJ discharges, the starter tripping operation.Display screen D shows short trouble and short circuit current simultaneously.
Three-phase imbalance (disconnected phase) protection: current transformer LH detects current signal; from its L1 terminal, L2 terminal, the output of L3 terminal; advance Ia terminal, Ib terminal, the Ic terminal of integrated protector for electric motor BHQ; after integrated protector for electric motor BHQ carries out filtering, A/D conversion with it; compare with setting tri-phase unbalance factor in the integrated protector for electric motor BHQ; when surpassing the setting tri-phase unbalance factor; execution action; the first relay J 1 of integrated protector for electric motor BHQ is opened; auxiliary relay 1BJ discharges; vacuum contactor ZJ discharges, the starter tripping operation.Display screen D shows tri-phase unbalance factor and three-phase current simultaneously.
Earth leakage search/lockout: before starter closes a floodgate; integrated protector for electric motor BHQ by its 33# terminal to the detection of insulating of load electrical network; one group+24V power supply is arranged in the integrated protector for electric motor BHQ; this positive source ground connection; when the load line insulation reduces; positive source imports electrical network into by the electrical network resistance to earth, and (electrical network three is alternate because the motor line bag is arranged; three alternate D.C. resistances are very low); the 6th auxiliary contact ZJ6 through vacuum contactor ZJ; the 3rd auxiliary contact 1BJ3 of auxiliary relay 1BJ sends into integrated protector for electric motor BHQ; after integrated protector for electric motor BHQ detects this signal; this signal is carried out filtering; the A/D conversion; compare with setting insulation values in the integrated protector for electric motor BHQ; when actual value surpasses the setting insulation values; the first relay J 1 of integrated protector for electric motor BHQ is opened; auxiliary relay 1BJ discharges, and vacuum contactor ZJ discharges, the starter tripping operation.Display screen D shows leak current fault and electrical leakage simultaneously.
Control lead-in wire Intelligent Measurement far away: when far-end start button QA ' presses normal startup; what the 1# binding post detected is direct current signal; integrated protector for electric motor BHQ carries out normal operating conditions; when control lead short circuit far away, what the 1# binding post detected is AC signal, at this moment integrated protector for electric motor BHQ execution action; the first relay J 1 of integrated protector for electric motor BHQ is opened; auxiliary relay 1BJ discharges, and vacuum contactor ZJ discharges, the starter tripping operation.Display screen D shows control lead short circuit fault far away simultaneously.
Automatic pumping: during manual pumping; the first switch 1K1 is closed; second switch 1K2 opens; the 13# binding post that link to each other with the upper limit water-level probe this moment, the 8# binding post that links to each other with the lower limit water-level probe are because the second auxiliary contact 1BJ2 of second switch 1K2 and auxiliary relay 1BJ is off-state; the 2nd detection signal input of integrated protector for electric motor BHQ can't detect signal, does not carry out automatic pumping.During automatic pumping; the first switch 1K1 disconnects; second switch 1K2 is closed; this moment, upper limit water-level probe detected signal, the second relay J 2 closures of integrated protector for electric motor BHQ, auxiliary relay 1BJ adhesive; the first auxiliary contact 1BJ1 of auxiliary relay 1BJ is closed; automatic pumping is carried out in vacuum contactor ZJ adhesive, and the second auxiliary contact 1BJ2 of auxiliary relay 1BJ is closed; along with the carrying out of drawing water; water level is descending, when water level is lower than upper limit water level, but when being higher than the lower limit water level; because the second auxiliary contact 1BJ2 of auxiliary relay 1BJ is closed; the lower limit water-level probe also in water, still has signal, continues to draw water.When water level is lower than the lower limit water level; lower limit water-level probe loss signal, the second relay J 2 of integrated protector for electric motor BHQ discharges, and auxiliary relay 1BJ discharges; the first auxiliary contact 1BJ1 of auxiliary relay 1BJ, the second auxiliary contact 1BJ2 disconnect, and stop pumping.When water level rises again, surpass the lower limit water-level probe, but when being lower than upper limit water-level probe probe, because the second auxiliary contact 1BJ2 of auxiliary relay 1BJ is off-state, can't detect signal, can automatic pumping, when only having water level to be higher than upper limit water level, could again carry out automatic pumping.
Overvoltage (under-voltage) protection: the 36V of the secondary coil output of transformer BK enters integrated protector for electric motor BHQ; after integrated protector for electric motor BHQ carries out filtering, A/D conversion; with set overvoltage (under-voltage) setting value in the integrated protector for electric motor BHQ relatively; when surpassing overvoltage (under-voltage) setting value; execution action, the first relay J 1 of integrated protector for electric motor BHQ is opened, and auxiliary relay 1BJ discharges; vacuum contactor ZJ discharges, the starter tripping operation.Display screen D shows overvoltage (under-voltage) fault and magnitude of voltage simultaneously.
Above embodiment is described preferred implementation of the present invention; be not that scope of the present invention is limited; design under the prerequisite of spirit not breaking away from the present invention; various distortion and improvement that the common engineers and technicians in this area make technical scheme of the present invention all should fall in the definite protection range of claims of the present invention.
Claims (4)
1. mining explosion-proof alternating-current vacuum electromagnetic starter, comprise starter body (1) and remote control device (2), it is characterized in that, described starter body (1) comprises three phase mains terminal (X1, X2, X3), isolation reversing switch (HK), current transformer (LH), threephase load terminal (D1, D2, D3), the first fuse (RD1), transformer (BK), the second fuse (RD2), auxiliary relay (1BJ), vacuum contactor (ZJ), interlock diverter switch by the first switch (1K1) and second switch (1K2) formation, the first diode (E1), start button (QA) on the spot, stop button (TA) on the spot, integrated protector for electric motor (BHQ), the 1# binding post, the 2# binding post, the 8# binding post, the 9# binding post, the 13# binding post, display screen (D), wherein, three phase mains terminal (X1, X2, X3), isolation reversing switch (HK), main contacts (the ZJ1 of vacuum contactor (ZJ), ZJ2, ZJ3), current transformer (LH), threephase load terminal (D1, D2, D3) link to each other successively, the upper end of the original grade coil of transformer (BK) is by the first fuse (RD1) and three phase mains terminal (X1, X2, wherein one linking to each other mutually X3), the lower end of the original grade coil of transformer (BK) and three phase mains terminal (X1, X2, X3) other wherein one linking to each other mutually of two-phase in, the upper end of the secondary coil of transformer (BK) is successively by the second fuse (RD2), first auxiliary contact (1BJ1) of auxiliary relay (1BJ) link to each other with an end of vacuum contactor (ZJ), the other end of vacuum contactor (ZJ) links to each other with the 9# binding post, the lower end of the secondary coil of transformer (BK) links to each other with the 36V power input of integrated protector for electric motor (BHQ), the Ib terminal of integrated protector for electric motor (BHQ), the Ia terminal, the Ic terminal, the L2 terminal of GND terminal correspondence and current transformer (LH), the L1 terminal, the L3 terminal, the 9# terminal links to each other, the 33# terminal of integrated protector for electric motor (BHQ) passes through the 3rd auxiliary contact (1BJ3) of auxiliary relay (1BJ) successively, the 6th auxiliary contact (ZJ6) of vacuum contactor (ZJ) and three phase mains terminal (X1, X2, wherein one linking to each other mutually X3), one end of second relay (J2) of integrated protector for electric motor (BHQ) respectively with an end of auxiliary relay (1BJ), one end of the first switch (1K1) links to each other, the other end of second relay (J2) of integrated protector for electric motor (BHQ) links to each other with the other end of the first switch (1K1), the output of the other end of auxiliary relay (1BJ) and the first diode (E1), the 1# binding post, one end of the 4th auxiliary contact (ZJ4) of vacuum contactor (ZJ), the 1st detection signal input of integrated protector for electric motor (BHQ) links to each other, the input of the first diode (E1) links to each other with a contact of start button (QA) on the spot, on the spot another contact of start button (QA) respectively with an end of the upper terminal contacts of stop button (TA) on the spot, the other end of the 4th auxiliary contact (ZJ4) of vacuum contactor (ZJ) links to each other, the other end of the upper terminal contacts of stop button (TA) links to each other with the 2# binding post on the spot, the 8# binding post links to each other with the 2nd detection signal input of integrated protector for electric motor (BHQ) by second auxiliary contact (1BJ2) of auxiliary relay (1BJ), the 13# binding post links to each other with the 2nd detection signal input of integrated protector for electric motor (BHQ) by second switch (1K2), one end of first relay (J1) of integrated protector for electric motor (BHQ) links to each other with an end of the first switch (1K1), one end of the other end of first relay (J1) of integrated protector for electric motor (BHQ) and first auxiliary contact (1BJ1) of auxiliary relay (1BJ), one end of the second fuse (RD2) links to each other, and integrated protector for electric motor (BHQ) links to each other with display screen (D) with power interface by serial ports;
Described remote control device (2) comprises the second diode (E2), the far-end start button (QA '), the far-end stop button (TA '), wherein, the output of the second diode (E2) links to each other with the 1# binding post, a contact of the input of the second diode (E2) and far-end start button (QA ') links to each other, a contact of another contact of far-end start button (QA ') and far-end stop button (TA ') links to each other with the 2# binding post, and another contact of far-end stop button (TA ') links to each other with the 9# binding post.
2. mining explosion-proof alternating-current vacuum electromagnetic starter according to claim 1 is characterized in that, also is provided with resistance-capacitance protection device (RC) between current transformer (LH) and threephase load terminal (D1, D2, D3).
3. mining explosion-proof alternating-current vacuum electromagnetic starter according to claim 2; it is characterized in that; described starter body (1) also comprises the 5# binding post, and the 5# binding post links to each other with an end of first relay (J1) of an end of first auxiliary contact (1BJ1) of an end of an end of the lower terminal contacts of stop button (TA) on the spot, the second fuse (RD2), auxiliary relay (1BJ), integrated protector for electric motor (BHQ) respectively.
4. mining explosion-proof alternating-current vacuum electromagnetic starter according to claim 3 is characterized in that, transformer (BK) is the tapped transformer of its original grade coil band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010533032 CN101976819B (en) | 2010-11-04 | 2010-11-04 | Mine explosion-proof alternative current (AC) vacuum electromagnetic starter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010533032 CN101976819B (en) | 2010-11-04 | 2010-11-04 | Mine explosion-proof alternative current (AC) vacuum electromagnetic starter |
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| Publication Number | Publication Date |
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| CN101976819A CN101976819A (en) | 2011-02-16 |
| CN101976819B true CN101976819B (en) | 2013-04-03 |
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| CN 201010533032 Expired - Fee Related CN101976819B (en) | 2010-11-04 | 2010-11-04 | Mine explosion-proof alternative current (AC) vacuum electromagnetic starter |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103107748A (en) * | 2013-03-01 | 2013-05-15 | 王晓红 | Double-line fast switch magnetic starter |
| CN103166538B (en) * | 2013-04-03 | 2015-11-04 | 安徽理工大学 | Reversible magnetic starter of general power-driven multi-turn execution mechanism |
| CN109404042A (en) * | 2018-11-20 | 2019-03-01 | 山西潞安环保能源开发股份有限公司常村煤矿 | A kind of mining automatic drainage device |
| CN111498427B (en) * | 2020-06-01 | 2024-06-04 | 淮南矿业(集团)有限责任公司 | Chain scraper delay starting control circuit and control method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2154552Y (en) * | 1993-03-18 | 1994-01-26 | 王永祥 | Anti-exploisive reactive compensation vacuum electromagnet starter |
| CN2396544Y (en) * | 1999-08-17 | 2000-09-13 | 王维 | Flame-proof type special multifunctional vacuum electromagnetic starter for driving of mine |
| CN201846063U (en) * | 2010-11-04 | 2011-05-25 | 淮南市博泰矿山电器有限公司 | Mining explosion-proof alternating-current vacuum electromagnetic starter |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006053524B4 (en) * | 2006-11-07 | 2011-05-26 | Danfoss Flensburg Gmbh | Motor start circuit |
-
2010
- 2010-11-04 CN CN 201010533032 patent/CN101976819B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2154552Y (en) * | 1993-03-18 | 1994-01-26 | 王永祥 | Anti-exploisive reactive compensation vacuum electromagnet starter |
| CN2396544Y (en) * | 1999-08-17 | 2000-09-13 | 王维 | Flame-proof type special multifunctional vacuum electromagnetic starter for driving of mine |
| CN201846063U (en) * | 2010-11-04 | 2011-05-25 | 淮南市博泰矿山电器有限公司 | Mining explosion-proof alternating-current vacuum electromagnetic starter |
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| CN101976819A (en) | 2011-02-16 |
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