CN201478800U - Interlock protection device used for high-voltage system of high-voltage motor and low pressure system of thin oil station - Google Patents
Interlock protection device used for high-voltage system of high-voltage motor and low pressure system of thin oil station Download PDFInfo
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- CN201478800U CN201478800U CN200920176452XU CN200920176452U CN201478800U CN 201478800 U CN201478800 U CN 201478800U CN 200920176452X U CN200920176452X U CN 200920176452XU CN 200920176452 U CN200920176452 U CN 200920176452U CN 201478800 U CN201478800 U CN 201478800U
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- 239000003990 capacitor Substances 0.000 claims abstract description 15
- 239000010687 lubricating oil Substances 0.000 claims description 14
- 230000001681 protective effect Effects 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 239000010729 system oil Substances 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000001012 protector Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 8
- 230000005611 electricity Effects 0.000 description 6
- 238000001816 cooling Methods 0.000 description 2
- 208000033999 Device damage Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
The utility model belongs to an electrical protection technology, and particularly relates to an interlock protection device used for a high-voltage system of a high-voltage motor and a low pressure system of a thin oil station. An intermediate relay of 2kV is arranged in a tripping circuit of the interlock protection device, and a coil of the intermediate relay of 2kV is respectively connected with contact points (1 and 2) of an output terminal of a fuse protector. The interlock protection device has the benefits that in order to guarantee the secure and reliable operation of the high-voltage motor, the intermediate relay of 2kV is connected to a low-voltage operational power supply, and the contact point of the intermediate relay is connected with a normally-closed contact point of a high-voltage no-voltage relay (kV). When a low pressure system has power failure, the intermediate relay of 2kV has power failure simultaneously, the normally-closed contact point of 2kV is closed, a capacitor (C) discharges to a tripping coil (YT) through a normally-closed contact point of 2kV, the tripping coil (YT) electrically acts, and a high-tension switch trips, so as to achieve the interlocking between the high-voltage system of the high-voltage motor and the low pressure system of the oil station.
Description
Technical field
The utility model relates to a kind of electic protection technology, specifically relates to a kind of interlocking protective device that is used for high-tension motor high-pressure system and Lubricating-oil Station low-pressure system.
Background technology
High-tension motor and blower fan all adopt the bearing shell transmission, the cooling of bearing shell reaches to lubricate and by oil pump lubrication oil circulation is guaranteed by the low pressure oil station, after the low-pressure system dead electricity of oil station, oil pump quits work, lubricating oil is supplied with and is stopped, and high-tension motor can not trip because of the low-pressure system dead electricity, and bearing shell just can be because of the cooling and lubricated the burning of unlubricated oil, not only make device damage, return enterprise's production and cause very big loss.
Summary of the invention
The purpose of this utility model provides a kind of high-tension motor high-pressure system of high-tension motor high-pressure system and Lubricating-oil Station low-pressure system safety movement and interlocking protective device of Lubricating-oil Station low-pressure system of being used for.
The interlocking protective device of a kind of high-tension motor high-pressure system of the utility model and Lubricating-oil Station low-pressure system is achieved by following technical proposals: the utility model comprises the control bus, fuse, anti-jump loop, sub-gate circuit, the separating brake interface, the fast tripping protection trip(ping) circuit, the overcurrent protection trip(ping) circuit, the ground protection trip(ping) circuit, the o-volt protection trip(ping) circuit, 380V operating power o-volt protection trip(ping) circuit, electric capacity protection loop, change over switch, described sub-gate circuit is provided with an auxiliary relay 2KV, auxiliary relay 2KV coil connects with fuse output 1 and 2 contacts respectively, its normally-closed contact 2KV and high pressure no-voltage relay kV normally-closed contact are parallel to 23 contacts by auxiliary switch QF normally opened contact input 33 contacts in plate 3XB and the separating brake contactor YT wire loop, auxiliary switch QF normally opened contact output and separating brake contactor YT coil one end, the separating brake contactor YT coil other end connects with fuse 2FU output 2 contacts; Connect 13 pin and 15 pin of conversion switch behind the auxiliary switch QF input 33 contacts serial connection indicator light HR, auxiliary switch QF input 33 contacts simultaneously with 161 pin of 7 pin of change over switch, separating brake interface, by plate 1XB with contact 19, connect with contact 21 by 2XB, the normally-closed contact parallel connection of the normally opened contact input of the normally opened contact input of current relay KC1, the normally opened contact input of current relay KC2, current relay KC3, the normally-closed contact of high pressure no-voltage relay KV and auxiliary relay 2KV connects with loop contact 25; Capacitor C one end connects with fuse output 2 contacts in the described electric capacity protection loop; the capacitor C other end is connected with loop 25 contacts; button 1SB normally-closed contact output is that capacitor C connects with loop contact 25; button 1SB normally-closed contact input connects with diode output, and diode input series resistance R connects with 1FU output 1 contact of fuse.
The interlocking protective device of a kind of high-tension motor high-pressure system of the utility model and Lubricating-oil Station low-pressure system has following beneficial effect compared with prior art: for guaranteeing the safe and reliable operation of high-tension motor; on the low voltage operated power supply of the utility model, connect a 2kV auxiliary relay, its contact and high pressure no-voltage relay kV normally-closed contact are linked.When the low-pressure system dead electricity, auxiliary relay 2kV is dead electricity simultaneously, normally-closed contact 2kV closure, and capacitor C is by normally closed some switching winding YT discharge of 2kV, and YT gets electronic work, the high-voltage switch gear tripping operation.Thereby played the interlocking of high-tension motor high-pressure system with oil station low-pressure system.
Description of drawings
Fig. 1 is the interlocking protective device electrical principle structural representation of a kind of high-tension motor high-pressure system of the utility model and Lubricating-oil Station low-pressure system.
Wherein: 1, control bus; 2, fuse; 3, anti-jump loop; 4, sub-gate circuit; 5, separating brake interface; 6, fast tripping protection trip(ping) circuit; 7, overcurrent protection trip(ping) circuit; 8, ground protection trip(ping) circuit; 9, o-volt protection trip(ping) circuit; 10,380V operating power o-volt protection trip(ping) circuit; 11, electric capacity protection loop; 12, change over switch; 3, diode; 1FU, 2FU, fuse; 1KA, direct current auxiliary relay; 2KV, AC intermediate relay; QF, G, auxiliary switch; HG, HR, indicator light; 1SB, button; C, electric capacity; R, resistance; 1-3XB, plate; D, diode; KM, closing contactor; YT, separating brake contactor; KV, voltage relay; 1-2KC, KE, current relay.
Embodiment
Be further described below in conjunction with the interlocking protective device technical scheme of drawings and Examples a kind of high-tension motor high-pressure system of the utility model and Lubricating-oil Station low-pressure system.
As shown in Figure 1, the interlocking protective device of a kind of high-tension motor high-pressure system of the utility model and Lubricating-oil Station low-pressure system comprises control bus 1, fuse 2, anti-jump loop 3, sub-gate circuit 4, separating brake interface 5, fast tripping protection trip(ping) circuit 6, overcurrent protection trip(ping) circuit 7, ground protection trip(ping) circuit 8, o-volt protection trip(ping) circuit 9,380V operating power o-volt protection trip(ping) circuit 10, electric capacity protection loop 11, change over switch 12, described sub-gate circuit 4 is provided with an auxiliary relay 2KV, auxiliary relay 2KV coil connects with fuse 2 outputs 1 and 2 contacts respectively, its normally-closed contact 2KV and high pressure no-voltage relay kV normally-closed contact are parallel to 23 contacts by auxiliary switch QF normally opened contact input 33 contacts in plate 3XB and the separating brake contactor YT wire loop, auxiliary switch QF normally opened contact output and separating brake contactor YT coil one end, the separating brake contactor YT coil other end connects with fuse 2FU output 2 contacts; Connect 13 pin and 15 pin of conversion switch 12 behind the auxiliary switch QF input 33 contacts serial connection indicator light HR, auxiliary switch QF input 33 contacts simultaneously with 161 pin of 7 pin of change over switch 12, separating brake interface 5, by plate 1XB with contact 19, connect with contact 21 by 2XB, the normally-closed contact parallel connection of the normally opened contact input of the normally opened contact input of current relay KC1, the normally opened contact input of current relay KC2, current relay KC3, the normally-closed contact of high pressure no-voltage relay KV and auxiliary relay 2KV connects with loop contact 25; Capacitor C one end connects with fuse 2 outputs 2 contacts in the described electric capacity protection loop 11; the capacitor C other end is connected with loop 25 contacts; button 1SB normally-closed contact output is that capacitor C connects with loop contact 25; button 1SB normally-closed contact input connects with diode 13 outputs, and diode 13 input series resistance R connect with 1FU output 1 contact of fuse 2.
Closing contactor KM coil one end that described anti-jump loop 3 is provided with connects with 2FU output 2 contacts of fuse 2, connect with 10 pin and 12 pin that connect conversion switch 12 behind closing contactor KM coil other end series connection auxiliary switch QF normally-closed contact and the indicator light HG1, described auxiliary relay 1KA coil one end connects with 2FU output 2 contacts of fuse 2, the auxiliary relay 1KA coil other end connects with auxiliary relay 1KA normally opened contact output and auxiliary switch QF normally opened contact output, connect with 8 pin of change over switch 12 behind the auxiliary switch QF normally opened contact input series connection auxiliary switch G normally-closed contact, auxiliary relay 1KA normally opened contact input connects with auxiliary switch G normally opened contact output, and auxiliary switch G normally opened contact input is exported 1 contact by interface 155 and 157 with the 1FU of fuse 2 and connected.
Indicator light HG2 one end of described 380V operating power o-volt protection trip(ping) circuit 10 is exported 2 contacts with the 2FU of fuse 2 and is connected, and connects with loop contact 25 behind the other end serial connection button 1SB normally opened contact.
The interlocking protective device of a kind of high-tension motor high-pressure system of the utility model and Lubricating-oil Station low-pressure system is provided with an auxiliary relay 2KV at described sub-gate circuit 4, auxiliary relay 2KV coil connects with fuse 2 outputs 1 and 2 contacts respectively, its normally-closed contact 2KV and high pressure no-voltage relay kV normally-closed contact are parallel to 23 contacts by auxiliary switch QF normally opened contact input 33 contacts in plate 3XB and the separating brake contactor YT wire loop, auxiliary switch QF normally opened contact output and separating brake contactor YT coil one end, the separating brake contactor YT coil other end connects with fuse 2FU output 2 contacts; Connect 13 pin and 15 pin of conversion switch 12 behind the auxiliary switch QF input 33 contacts serial connection indicator light HR, auxiliary switch QF input 33 contacts simultaneously with 161 pin of 7 pin of change over switch 12, separating brake interface 5, by plate 1XB with contact 19, connect with contact 21 by 2XB, the normally-closed contact parallel connection of the normally opened contact input of the normally opened contact input of current relay KC1, the normally opened contact input of current relay KC2, current relay KC3, the normally-closed contact of high pressure no-voltage relay KV and auxiliary relay 2KV connects with loop contact 25; Capacitor C one end connects with fuse 2 outputs 2 contacts in the described electric capacity protection loop 11; the capacitor C other end is connected with loop 25 contacts; button 1SB normally-closed contact output is that capacitor C connects with loop contact 25; button 1SB normally-closed contact input connects with diode 13 outputs, and diode 13 input series resistance R connect with 1FU output 1 contact of fuse 2.
Closing contactor KM coil one end that described anti-jump loop 3 is provided with connects with 2FU output 2 contacts of fuse 2, connect with 10 pin and 12 pin that connect conversion switch 12 behind closing contactor KM coil other end series connection auxiliary switch QF normally-closed contact and the indicator light HG1, described auxiliary relay 1KA coil one end connects with 2FU output 2 contacts of fuse 2, the auxiliary relay 1KA coil other end connects with auxiliary relay 1KA normally opened contact output and auxiliary switch QF normally opened contact output, connect with 8 pin of change over switch 12 behind the auxiliary switch QF normally opened contact input series connection auxiliary switch G normally-closed contact, auxiliary relay 1KA normally opened contact input connects with auxiliary switch G normally opened contact output, and auxiliary switch G normally opened contact input is exported 1 contact by interface 155 and 157 with the 1FU of fuse 2 and connected.
Indicator light HG2 one end of described 380V operating power o-volt protection trip(ping) circuit 10 is exported 2 contacts with the 2FU of fuse 2 and is connected, and connects with loop contact 25 behind the other end serial connection button 1SB normally opened contact.
Described change over switch 12 inputs 5 pin, 11 pin, 9 pin, 14 pin, 16 pin, 6 pin and interface 155,159 are exported 1 contact with the 1FU of fuse 2 and are connected.
During use; when when the low-pressure system dead electricity; auxiliary relay 2kV is dead electricity simultaneously; normally-closed contact 2kV closure; capacitor C discharges to separating brake contactor coil YT by 2kV is normally closed; separating brake contactor YT gets electronic work, and its connecting rod drives high-voltage switch gear tripping operation cutoff high motor power, thereby has played the interlock protection of high-tension motor high-pressure system with oil station low-pressure system.
Claims (3)
1. the interlocking protective device of high-tension motor high-pressure system and Lubricating-oil Station low-pressure system, comprise control bus (1), fuse (2), anti-jump loop (3), sub-gate circuit (4), separating brake interface (5), fast tripping protection trip(ping) circuit (6), overcurrent protection trip(ping) circuit (7), ground protection trip(ping) circuit (8), o-volt protection trip(ping) circuit (9), 380V operating power o-volt protection trip(ping) circuit (10), electric capacity protection loop (11), change over switch (12), it is characterized in that: described sub-gate circuit (4) is provided with an auxiliary relay 2KV, auxiliary relay 2KV coil connects with fuse (2) output 1 and 2 contacts respectively, its normally-closed contact 2KV and high pressure no-voltage relay kV normally-closed contact are parallel to 23 contacts by auxiliary switch QF normally opened contact input 33 contacts in plate 3XB and the separating brake contactor YT wire loop, auxiliary switch QF normally opened contact output and separating brake contactor YT coil one end, the separating brake contactor YT coil other end connects with fuse 2FU output 2 contacts; Connect 13 pin and 15 pin of conversion switch (12) behind the auxiliary switch QF input 33 contacts serial connection indicator light HR, auxiliary switch QF input 33 contacts simultaneously with 161 pin of 7 pin of change over switch (12), separating brake interface (5), by plate 1XB with contact 19, connect with contact 21 by 2XB, the normally-closed contact parallel connection of the normally opened contact input of the normally opened contact input of current relay KC1, the normally opened contact input of current relay KC2, current relay KC3, the normally-closed contact of high pressure no-voltage relay KV and auxiliary relay 2KV connects with loop contact 25; Capacitor C one end connects with fuse (2) output 2 contacts in the described electric capacity protection loop (11); the capacitor C other end is connected with loop 25 contacts; button 1SB normally-closed contact output is that capacitor C connects with loop contact 25; button 1SB normally-closed contact input connects with diode (13) output, and diode (13) input series resistance R connects with 1FU output 1 contact of fuse (2).
2. the interlocking protective device of high-tension motor high-pressure system according to claim 1 and Lubricating-oil Station low-pressure system; it is characterized in that: closing contactor KM coil one end that described anti-jump loop (3) is provided with connects with 2FU output 2 contacts of fuse (2); connect with 10 pin and 12 pin that connect conversion switch (12) behind closing contactor KM coil other end series connection auxiliary switch QF normally-closed contact and the indicator light HG1; described auxiliary relay 1KA coil one end connects with 2FU output 2 contacts of fuse (2); the auxiliary relay 1KA coil other end connects with auxiliary relay 1KA normally opened contact output and auxiliary switch QF normally opened contact output; connect with 8 pin of change over switch (12) behind the auxiliary switch QF normally opened contact input series connection auxiliary switch G normally-closed contact; auxiliary relay 1KA normally opened contact input connects with auxiliary switch G normally opened contact output, and auxiliary switch G normally opened contact input is exported 1 contact by interface 155 and 157 with the 1FU of fuse (2) and connected.
3. the interlocking protective device of high-tension motor high-pressure system according to claim 1 and Lubricating-oil Station low-pressure system; it is characterized in that: indicator light HG2 one end of described 380V operating power o-volt protection trip(ping) circuit (10) is exported 2 contacts with the 2FU of fuse (2) and is connected, and connects with loop contact 25 behind the other end serial connection button 1SB normally opened contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920176452XU CN201478800U (en) | 2009-08-25 | 2009-08-25 | Interlock protection device used for high-voltage system of high-voltage motor and low pressure system of thin oil station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920176452XU CN201478800U (en) | 2009-08-25 | 2009-08-25 | Interlock protection device used for high-voltage system of high-voltage motor and low pressure system of thin oil station |
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| Publication Number | Publication Date |
|---|---|
| CN201478800U true CN201478800U (en) | 2010-05-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920176452XU Expired - Fee Related CN201478800U (en) | 2009-08-25 | 2009-08-25 | Interlock protection device used for high-voltage system of high-voltage motor and low pressure system of thin oil station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201478800U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104167713A (en) * | 2014-08-21 | 2014-11-26 | 刘剑华 | Automatic brake opening protection device for loss of voltage of high-tension switch board low-voltage power source |
| CN105958437A (en) * | 2016-07-20 | 2016-09-21 | 攀钢集团西昌钢钒有限公司 | Control circuit for achieving decompression tripping of circuit breaker through external loop |
| CN104037727B (en) * | 2014-06-20 | 2017-06-27 | 北方重工集团有限公司 | A kind of control guard method of high voltage electric equipment dead electricity |
-
2009
- 2009-08-25 CN CN200920176452XU patent/CN201478800U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104037727B (en) * | 2014-06-20 | 2017-06-27 | 北方重工集团有限公司 | A kind of control guard method of high voltage electric equipment dead electricity |
| CN104167713A (en) * | 2014-08-21 | 2014-11-26 | 刘剑华 | Automatic brake opening protection device for loss of voltage of high-tension switch board low-voltage power source |
| CN105958437A (en) * | 2016-07-20 | 2016-09-21 | 攀钢集团西昌钢钒有限公司 | Control circuit for achieving decompression tripping of circuit breaker through external loop |
| CN105958437B (en) * | 2016-07-20 | 2018-06-12 | 攀钢集团西昌钢钒有限公司 | Realize the control circuit of breaker decompression tripping in external circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100519 Termination date: 20170825 |