CN205753620U - Flameproof high-voltage switch cubicle controls and the automatic switch-over circuit of protection power supply - Google Patents
Flameproof high-voltage switch cubicle controls and the automatic switch-over circuit of protection power supply Download PDFInfo
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- CN205753620U CN205753620U CN201620524270.7U CN201620524270U CN205753620U CN 205753620 U CN205753620 U CN 205753620U CN 201620524270 U CN201620524270 U CN 201620524270U CN 205753620 U CN205753620 U CN 205753620U
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Abstract
The utility model discloses a kind of flameproof high-voltage switch cubicle to control and the automatic switch-over circuit of protection power supply, including: it is located at the intelligent type comprehensive protector of flameproof high-voltage inside switch cabinet, relay, high-voltage mutual inductor and is located at the flame-proof type lithium-ions battery power supply outside flameproof high-voltage switch cubicle or explosion-proof feeding control chamber；Complete intelligent type comprehensive protector by two groups of normally-open normally-close conversion type contacts of described relay to commonly use or the conversion of standby control and protection power supply.This utility model achieves when conventional control and protection power supply need to disconnect maintenance; by the automatic conversion of relay contact; there is provided standby control and protection power supply for flameproof high-voltage switch cubicle, thus substantially increase the convenience of underground coal mine flameproof high-voltage switch cubicle operating maintenance, safety and reliability.
Description
Technical field
This utility model relates to control and the power supply technique field of protection power supply of underground coal mine flameproof high-voltage switch cubicle,
Especially relate to a kind of flameproof high-voltage switch cubicle control and the automatic switch-over circuit of protection power supply.
Background technology
High-tension switch cabinet is widely used in power distribution circuit, is the key equipment of power distribution.Its effect is control
The distribution of electric energy processed and the break-make of transmission, and there is the effects such as all kinds of route protections.It is mainly used in all kinds of electric substation and change
The places such as power station.
Referring to Fig. 1, control and the protection circuit of the existing flameproof high-voltage switch cubicle for underground coal mine are mainly wrapped
Include: high voltage potential transformer (TV), intelligent type comprehensive protector (ZNCK), wherein, described intelligent type comprehensive protector (ZNCK)
Power supply be that the secondary coil (AC100V) by flameproof high-voltage switch cubicle inner high voltage voltage transformer (TV) is powered.When
When high-voltage electric power circuit has a power failure, intelligent type comprehensive protector (ZNCK) dead electricity, will be unable to show recording equipment information, state；Extensive
During multiple power transmission, flameproof high-voltage incoming line cabinet is not owing to having independent control power supply, it is impossible to realize remote control operation, it is necessary on the spot
Enforcement personnel's manual operation.
Underground coal mine flameproof high-voltage switch cubicle controls and protection power supply uses high-voltage mutual inductor to power the most serious at present
Defect be, when there is short trouble in high-tension electricity supply line, the high-voltage mutual inductor (TV) two being connected on high-tension line
The output voltage (AC100V) of secondary coil is instantaneous tends to zero volt, cause intelligent type comprehensive protector (ZNCK) working power dead electricity and
Guarded command cannot be sent, cause faulty line high voltage flameproof switch cubicle chopper cannot separating brake, thus cause upper level
There is tripping operation of bypassing the immediate leadership in switch or electric substation, and form large area blackout, and underground coal mine large-area power-cuts is for the peace in colliery
The harm of row for the national games is particularly acute.
Utility model content
The purpose of this utility model is to provide a kind of flameproof high-voltage switch cubicle to control and the automatic switchover of protection power supply
Circuit, can realize when control conventional, that be externally supplied by flameproof high-voltage switch cubicle and protection power supply are disconnected, for flame proof
Type high-tension switch cabinet provides interim control and protection power supply, it is ensured that the safe and reliable operation of underground explosion-proof type high-tension switch cabinet.
For realizing above-mentioned utility model purpose, this utility model adopts the following technical scheme that
A kind of flameproof high-voltage switch cubicle controls and the automatic switch-over circuit of protection power supply, including: it is located at flameproof high-voltage
The intelligent type comprehensive protector of inside switch cabinet, relay, high-voltage mutual inductor and be located at outside flameproof high-voltage switch cubicle
Flame-proof type lithium-ions battery power supply or explosion-proof feeding control chamber；
The common port of first group of normally-open normally-close conversion type contact of described relay and second group of normally-open normally-close type conversion type
The common port of contact is connected to the power input of intelligent type comprehensive protector；
The normally opened end of first group of normally-open normally-close conversion type contact of described relay is connected to described flame-proof type lithium ion electric power storage
Pond power supply or explosion-proof feeding control chamber input the negative or positive electrode input of the power supply to flameproof high-voltage inside switch cabinet；Institute
The normal-closed end stating first group of normally-open normally-close conversion type contact of relay is connected to an outfan of high-voltage mutual inductor secondary coil；
The normally opened end of second group of normally-open normally-close conversion type contact of described relay is connected to flame-proof type lithium-ions battery electricity
Source or the input of explosion-proof feeding control chamber to the negative pole of power supply of flameproof high-voltage inside switch cabinet or negative input, described in continue
The normal-closed end of second group of normally-open normally-close conversion type contact of electrical equipment is connected to another outfan of high-voltage mutual inductor secondary coil；
The two ends of the coil of described relay are connected to flame-proof type lithium-ions battery power supply or explosion-proof feeding control
Case processed inputs the negative or positive electrode input to flameproof high-voltage inside switch cabinet.
Further, control and in the automatic switch-over circuit of protection power supply at above-mentioned flameproof high-voltage switch cubicle, described every
The out-put supply of quick-fried type lithium-ions battery power supply or explosion-proof feeding control chamber is AC or DC.
Further, control and in the automatic switch-over circuit of protection power supply at above-mentioned flameproof high-voltage switch cubicle, described in continue
Electrical equipment is auxiliary reclay.
Further, control and in the automatic switch-over circuit of protection power supply at above-mentioned flameproof high-voltage switch cubicle, described in continue
Electrical equipment also comprises solid-state relay or the catalyst electric appliances of non-conversion type contact.
This utility model flameproof high-voltage switch cubicle controls and protection power supply automatic switchover circuit achieves in conventional control
When needing to disconnect with protection power supply, by the automatic conversion of relay contact, provide interim control for flameproof high-voltage switch cubicle
System and protection power supply, thus substantially increase the convenience of underground coal mine flameproof high-voltage switch cubicle operating maintenance, safety and
Reliability.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of the high voltage flameproof switch cubicle power circuit of prior art；
Fig. 2 is that the circuit of the automatic switch-over circuit of flameproof high-voltage switch cubicle of the present utility model control and protection power supply is former
Reason figure.
Detailed description of the invention
For the ease of understanding this utility model, below with reference to relevant drawings, this utility model is more fully retouched
State.Accompanying drawing gives preferred embodiment of the present utility model.But, this utility model can come real in many different forms
Existing, however it is not limited to embodiment described herein.On the contrary, providing the purpose of these embodiments is to make public affairs of the present utility model
The understanding opening content is more thorough comprehensively.
Referring to Fig. 2, this utility model flameproof high-voltage switch cubicle controls and the automatic switch-over circuit of protection power supply includes:
It is located at the intelligent type comprehensive protector ZNCK of flameproof high-voltage inside switch cabinet, relay J D, high-voltage mutual inductor TV and is located at
Flame-proof type lithium-ions battery power supply DXJL outside flameproof high-voltage switch cubicle or explosion-proof feeding control chamber KXBK；
Common port 1 foot of first group of normally-open normally-close conversion type contact of described relay J D and second group of normally-open normally-close conversion
Common port 8 foot of type contact is connected to the power input of intelligent type comprehensive protector ZNCK；
Two ends 2 foot of the coil K of described relay J D, 7 feet are connected to flame-proof type lithium-ions battery power supply DXJL
Or explosion-proof feeding control chamber KXBK input is to the negative or positive electrode input of flameproof high-voltage inside switch cabinet；
Normally opened end 4 foot of first group of normally-open normally-close conversion type contact of described relay J D is connected to described flame-proof type lithium ion
Battery feed DXJL or explosion-proof feeding control chamber KXBK input to flameproof high-voltage inside switch cabinet power supply positive pole or
Negative input, normal-closed end 3 foot of first group of normally-open normally-close conversion type contact of described relay J D is connected to high-voltage mutual inductor TV
One outfan of secondary coil；
Normally opened end 6 foot of second group of normally-open normally-close conversion type contact of described relay J D is connected to flame-proof type lithium ion electric power storage
Pond power supply DXJL or explosion-proof feeding control chamber KXBK inputs negative pole or the negative pole of the power supply to flameproof high-voltage inside switch cabinet
Input, normal-closed end 5 foot of second group of normally-open normally-close conversion type contact of described relay J D is connected to high-voltage mutual inductor TV bis-times
Another outfan of coil.
In the present embodiment, described relay J D is auxiliary reclay, it would however also be possible to employ solid-state relay or catalyst class electricity
Device.
Described flame-proof type lithium-ions battery power supply DXJL or explosion-proof feeding control chamber KXBK inputs to flameproof high-voltage
Control and the protection power supply of switch cubicle can be direct current or alternating current power supply.This example is as a example by DC source, for intelligent type comprehensive
Protector ZNCK provides power supply.
Described intelligent type comprehensive protector ZNCK uses AC/DC universal power supply, and i.e. it both can use alternating current power supply also may be used
To use DC source.
Referring to Fig. 2, this utility model flameproof high-voltage switch cubicle controls and the automatic switch-over circuit work of protection power supply
Process is as follows:
Time properly functioning, the outside flame-proof type lithium-ions battery power supply DXJL of flameproof high-voltage switch cubicle or explosion-proof feeding
Control chamber KXBK input is powered effectively, due to the coil K-band of relay J D to the DC source of flameproof high-voltage inside switch cabinet
Electricity, now, common port 1 foot end normally opened with it the 4 foot adhesive of first group of normally-open normally-close conversion type contact of described relay J D, institute
Stating common port 8 foot end normally opened with it the 6 foot adhesive of second group of normally-open normally-close conversion type contact of relay J D, flameproof high-voltage is opened
Close cabinet outside flame-proof type lithium-ions battery power supply DXJL or explosion-proof feeding control chamber KXBK input to switch to flameproof high-voltage
DC source within cabinet is normally opened often by " 1-4 " foot of first group of normally-open normally-close conversion type contact of relay and second group
" 6-8 " foot closing conversion type contact is powered to intelligent type comprehensive protector ZNCK power supply.
As needs maintenance flame-proof type lithium-ions battery power supply DXJL or explosion-proof feeding control chamber KXBK, due to flame proof
The power supply of type lithium-ions battery power supply DXJL or explosion-proof feeding control chamber KXBK output is cut off, the line of described relay J D
Circle K dead electricity, now, common port 1 foot end normally opened with it 4 foot of first group of normally-open normally-close conversion type contact of described relay J D breaks
Opening, common port 8 foot end normally opened with it 6 foot of second group of normally-open normally-close conversion type contact of described relay J D disconnects；Meanwhile, institute
State common port 1 foot and its normal-closed end 3 foot adhesive, described relay J D of first group of normally-open normally-close conversion type contact of relay J D
Common port 8 foot and its normal-closed end 5 foot adhesive of second group of normally-open normally-close conversion type contact, described intelligent type comprehensive protector
The AC100V power supply temporary power that the power supply of ZNCK is exported by high-voltage mutual inductor TV secondary coil.
After flame-proof type lithium-ions battery power supply DXJL or explosion-proof feeding control chamber KXBK overhauls, flame-proof type lithium
The DC source of ion accumulator power supply DXJL or explosion-proof feeding control chamber KXBK output restores electricity, described relay J D
Coil K-band electricity, the normally opened end adhesive again of first group of described relay J D and second group transfer contact, described intelligent type comprehensive
The power supply of protector ZNCK is inputted extremely by flame-proof type lithium-ions battery power supply DXJL or explosion-proof feeding control chamber KXBK again
The power supply normal power supply of flameproof high-voltage switch cubicle.
Compared to prior art, this utility model flameproof high-voltage switch cubicle controls and the automatic switchover electricity of protection power supply
Road, using flame-proof type lithium-ions battery power supply DXJL or explosion-proof feeding control chamber KXBK is down-hole high pressure flame-proof type switch cubicle
Interior intelligent type comprehensive protector ZNCK provides reliable and stable control and protection power supply, is not affected by high-voltage line fault.With
Time using in flameproof high-voltage switch cubicle original high-voltage mutual inductor TV secondary coil output AC100V power supply as stand-by power supply,
And automatically switched by relay J D installed additional in underground explosion-proof type high-tension switch cabinet, it is achieved thereby that flame-proof type lithium from
When sub-battery feed DXJL and explosion-proof feeding control chamber KXBK needs interruption maintenance, provide for flameproof high-voltage switch cubicle and face
Time control and protection power supply, it is ensured that the safe and reliable operation of underground coal mine flameproof high-voltage switch cubicle, thus substantially increase coal
The safety of power transformation operation under mine.
Description the most of the present utility model and application are illustrative, are not wishing to be limited in scope of the present utility model
State in embodiment.The deformation of embodiments disclosed herein and change are possible, for the ordinary skill people of those this areas
For Yuan, the various parts with equivalence of replacing of embodiment are known.It should be appreciated by the person skilled in the art that and do not taking off
In the case of spirit or essential characteristics of the present utility model, this utility model can in other forms, structure, layout, ratio,
And realize with other assembly, material and parts.In the case of without departing from this utility model scope and spirit, can be to this
In disclosed embodiment carry out other deformation and change.
Claims (4)
1. a flameproof high-voltage switch cubicle controls and the automatic switch-over circuit of protection power supply, it is characterised in that including: be located at every
Intelligent type comprehensive protector, relay, high-voltage mutual inductor within quick-fried type high-tension switch cabinet and be located at flameproof high-voltage switch
Flame-proof type lithium-ions battery power supply outside cabinet or explosion-proof feeding control chamber；
The common port of first group of normally-open normally-close conversion type contact of described relay and second group of normally-open normally-close type conversion type contact
Common port be connected to the power input of intelligent type comprehensive protector；
The normally opened end of first group of normally-open normally-close conversion type contact of described relay is connected to described flame-proof type lithium-ions battery electricity
Source or explosion-proof feeding control chamber input the negative or positive electrode input of the power supply to flameproof high-voltage inside switch cabinet；Described continue
The normal-closed end of first group of normally-open normally-close conversion type contact of electrical equipment is connected to an outfan of high-voltage mutual inductor secondary coil；
The normally opened end of second group of normally-open normally-close conversion type contact of described relay be connected to flame-proof type lithium-ions battery power supply or
Explosion-proof feeding control chamber inputs negative pole or negative input, the described relay of the power supply to flameproof high-voltage inside switch cabinet
The normal-closed end of second group of normally-open normally-close conversion type contact is connected to another outfan of high-voltage mutual inductor secondary coil；
The two ends of the coil of described relay are connected to flame-proof type lithium-ions battery power supply or explosion-proof feeding control chamber
Input the negative or positive electrode input to flameproof high-voltage inside switch cabinet.
Flameproof high-voltage switch cubicle the most according to claim 1 controls and the automatic switch-over circuit of protection power supply, its feature
Being, the out-put supply of described flame-proof type lithium-ions battery power supply or explosion-proof feeding control chamber is AC or DC.
Flameproof high-voltage switch cubicle the most according to claim 1 controls and the automatic switch-over circuit of protection power supply, its feature
Being, described relay is auxiliary reclay.
Flameproof high-voltage switch cubicle the most according to claim 1 controls and the automatic switch-over circuit of protection power supply, its feature
Being, described relay also comprises solid-state relay or the catalyst electric appliances of non-conversion type contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620524270.7U CN205753620U (en) | 2016-06-01 | 2016-06-01 | Flameproof high-voltage switch cubicle controls and the automatic switch-over circuit of protection power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620524270.7U CN205753620U (en) | 2016-06-01 | 2016-06-01 | Flameproof high-voltage switch cubicle controls and the automatic switch-over circuit of protection power supply |
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| Publication Number | Publication Date |
|---|---|
| CN205753620U true CN205753620U (en) | 2016-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620524270.7U Active CN205753620U (en) | 2016-06-01 | 2016-06-01 | Flameproof high-voltage switch cubicle controls and the automatic switch-over circuit of protection power supply |
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| CN (1) | CN205753620U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106787149A (en) * | 2017-01-21 | 2017-05-31 | 成汉平 | Using two-way DC control and the circuit of the flame-proof type switch cubicle of protection power supply |
-
2016
- 2016-06-01 CN CN201620524270.7U patent/CN205753620U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106787149A (en) * | 2017-01-21 | 2017-05-31 | 成汉平 | Using two-way DC control and the circuit of the flame-proof type switch cubicle of protection power supply |
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