CN206820639U - A kind of high-pressure frequency-conversion auto by pass cabinet - Google Patents
A kind of high-pressure frequency-conversion auto by pass cabinet Download PDFInfo
- Publication number
- CN206820639U CN206820639U CN201720714220.XU CN201720714220U CN206820639U CN 206820639 U CN206820639 U CN 206820639U CN 201720714220 U CN201720714220 U CN 201720714220U CN 206820639 U CN206820639 U CN 206820639U
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- China
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- cabinet
- control module
- inlet wire
- outlet
- contactor
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Abstract
It the utility model is related to a kind of high-pressure frequency-conversion auto by pass cabinet, the first control module and the second control module of parallel relationship are provided with the cabinet, first control module includes inlet wire contactor, feed isolating switch, frequency converter, outlet disconnecting switch and the line contact device being sequentially connected electrically, second control module includes bypass contactor, and inlet wire contactor, feed isolating switch, outlet disconnecting switch, line contact device and bypass contactor come with electronic mechanism for opening/closing and each electronic mechanism for opening/closing electrically connects with external control module.The beneficial effects of the utility model are：Frequency converter disengaging line end is all provided with disconnecting switch, potential safety hazard when eliminating maintenance；Bypass contactor, inlet wire contactor, line contact device, feed isolating switch and outlet disconnecting switch are all using electronic mechanism for opening/closing, can be in Central Control Room centralized operation, do not need personnel to bypass cabinet front, substantially increase the security of personnel, switching time is relatively short simultaneously, improves reliability of operation.
Description
Technical field
It the utility model is related to high-voltage frequency converter technology field, and in particular to a kind of high-pressure frequency-conversion auto by pass cabinet.
Background technology
With the extensive use of high voltage converter, high voltage converter reliability of operation increasingly attracts attention.Except adopting
Outside frequency converter with high quality high reliability, majority can all consider to configure bypass cabinet, i.e., when frequency converter breaks down, can cut
Power frequency supply is changed to, to reduce power off time, improves system operation reliability.Most of frequency conversion bypass cabinet has manually and automatically
Two ways, manual mode manually disconnecting switch operation switching, it is necessary to which personnel have certain danger to operating before switch cubicle.
Automated manner is by controlling breaker or contactor divide-shut brake to switch, and peace be present without obvious isolation fracture, when maintenance
Full hidden danger.
Utility model content
The utility model provides a kind of high-pressure frequency-conversion auto by pass cabinet, it is intended to overcomes at least to some extent in the prior art
Existing deficiency, it had both ensured high voltage converter reliability of operation, improved security during maintenance again.
The technical scheme that the utility model solves above-mentioned technical problem is as follows：A kind of high-pressure frequency-conversion auto by pass cabinet, including
Cabinet, cabinet inlet wire and cabinet outlet, the cabinet inlet wire and external high pressure power electric connection, the cabinet outlet are used with outside
Electric equipment electrically connects, and is provided with the first control module and the second control module in the cabinet, first control module with it is described
Second control module is connected in parallel between the cabinet inlet wire and cabinet outlet, and first control module includes what is be sequentially connected electrically
Inlet wire contactor, feed isolating switch, frequency converter, outlet disconnecting switch and line contact device, the inlet wire contactor with it is described
Cabinet inlet wire electrically connects, and the line contact device electrically connects with the cabinet outlet, and second control module includes both ends point
The bypass contactor not electrically connected with the cabinet inlet wire and the cabinet outlet, the inlet wire contactor, inlet wire isolation
Switch, outlet disconnecting switch, line contact device and bypass contactor come with electronic mechanism for opening/closing and each electronic mechanism for opening/closing
Electrically connected with external control module.
Carry inlet wire contactor, feed isolating switch, outlet disconnecting switch, line contact device and the side of electronic mechanism for opening/closing
Road contactor is prior art, is commercially available prod, and external control module is also more conventional control system, this area it is common
Technical staff empirically can voluntarily be set.
On the basis of above-mentioned technical proposal, the utility model can also do following improvement.
Further, first control module is fixed on side in the cabinet, and second control module is fixed on institute
State opposite side relative in cabinet.
Further, first control module includes the inlet wire contactor, feed isolating switch, frequency conversion being sequentially connected electrically
Device, outlet disconnecting switch and line contact device are set gradually from top to bottom.
Further, the external control module is arranged on the cabinet outer wall or in the Central Control Room away from the cabinet.
Further, the external electric equipment is high-voltage motor.
Compared with prior art, the beneficial effects of the utility model are：Frequency converter disengaging line end is all provided with disconnecting switch,
Potential safety hazard when eliminating maintenance；Bypass contactor, inlet wire contactor, line contact device, feed isolating switch and outlet isolation
Switch, can be in Central Control Room centralized operation all using electronic mechanism for opening/closing, it is not necessary in front of personnel to bypass cabinet, greatly improves
The security of personnel, while switching time is relatively short, also improve reliability of operation.
Brief description of the drawings
Fig. 1 is a kind of structural representation of high-pressure frequency-conversion auto by pass cabinet provided by the utility model.
In accompanying drawing, the list of parts representated by each label is as follows：
1. cabinet；2. cabinet inlet wire；3. cabinet outlet；4. bypass contactor；5. inlet wire contactor；6. inlet wire automatism isolation
Switch；7. frequency converter；8. outlet automatism isolation switchs；9. line contact device.
Embodiment
Principle of the present utility model and feature are described below in conjunction with accompanying drawing, example is served only for explaining this practicality
It is new, it is not intended to limit the scope of the utility model.
As shown in figure 1, the utility model provides a kind of high-pressure frequency-conversion auto by pass cabinet, including cabinet 1, the and of cabinet inlet wire 2
Cabinet outlet 3, the cabinet inlet wire 2 and external high pressure power electric connection, the cabinet outlet 3 are electrically connected with external electric equipment
Connect, the first control module and the second control module, first control module and the described second control mould are provided with the cabinet 1
Block is connected in parallel between the cabinet inlet wire 2 and cabinet outlet 3, and what first control module included being sequentially connected electrically enters linear contact lay
Device 5, feed isolating switch 6, frequency converter 7, outlet disconnecting switch 8 and line contact device 9, the inlet wire contactor 5 and the cabinet
Body inlet wire 2 electrically connects, and the line contact device 9 electrically connects with the cabinet outlet 3, and second control module includes both ends point
The bypass contactor 4 not electrically connected with the cabinet inlet wire 2 and the cabinet outlet 3, the inlet wire contactor 5, inlet wire isolation
Switch 6, outlet disconnecting switch 8, line contact device 9 and bypass contactor 4 come with electronic mechanism for opening/closing and each electronic keying
Mechanism electrically connects with external control module.
Further, first control module is fixed on side in the cabinet 1, and second control module is fixed on institute
State opposite side relative in cabinet 1.
Further, first control module includes the inlet wire contactor 5, feed isolating switch 6, frequency conversion being sequentially connected electrically
Device 7, outlet disconnecting switch 8 and line contact device 9 are set gradually from top to bottom.
Further, the external control module is arranged on the outer wall of cabinet 1 or the Central Control Room away from the cabinet 1
It is interior.
So that electrical equipment is high-voltage motor as an example, high voltage power supply is kept apart through cabinet inlet wire 2, inlet wire contactor 5 and inlet wire
Close 6 and arrive high voltage converter, high voltage converter connects high-tension electricity after outlet disconnecting switch 6, line contact device 9 by cabinet outlet 3
Machine, under normal circumstances, powered by above-mentioned circuit to high-voltage motor, i.e., so-called " converting operation "；In addition, high voltage power supply can be with
It is connected through cabinet inlet wire 2, bypass contactor 4 and cabinet outlet 3 with high-voltage motor, i.e., so-called " bypass power frequency operation ".
Normal condition is " converting operation " state, if frequency converter breaks down, the external control module of Central Control Room is immediately
Disconnect, inlet wire contactor and line contact device are out of service by failure frequency converter, and then middle external control module (or is middle control
System) disconnect feed isolating switch and outlet disconnecting switch and drive frequency converter and power supply and load isolation, confirmation line contact device
Bypass contactor (ensure maintenance or change safer during frequency converter) is closed after all being disconnected with outlet disconnecting switch again, is entered
" bypass power frequency operation " state.
Preferred embodiment of the present utility model is the foregoing is only, it is all in this practicality not to limit the utility model
Within new spirit and principle, any modification, equivalent substitution and improvements made etc., guarantor of the present utility model should be included in
Within the scope of shield.
Claims (5)
1. a kind of high-pressure frequency-conversion auto by pass cabinet, including cabinet (1), cabinet inlet wire (2) and cabinet outlet (3), the cabinet enter
Line (2) and external high pressure power electric connection, the cabinet outlet (3) electrically connect with external electric equipment, it is characterised in that described
The first control module and the second control module are provided with cabinet (1), first control module and second control module are simultaneously
It is associated between the cabinet inlet wire (2) and cabinet outlet (3), what first control module included being sequentially connected electrically enters linear contact lay
Device (5), feed isolating switch (6), frequency converter (7), outlet disconnecting switch (8) and line contact device (9), the inlet wire contactor
(5) being electrically connected with the cabinet inlet wire (2), the line contact device (9) electrically connects with the cabinet outlet (3), and described second
Control module includes the bypass contactor (4) that both ends electrically connect with the cabinet inlet wire (2) and the cabinet outlet (3) respectively,
The inlet wire contactor (5), feed isolating switch (6), outlet disconnecting switch (8), line contact device (9) and bypass contactor
(4) come with electronic mechanism for opening/closing and each electronic mechanism for opening/closing electrically connects with external control module.
2. a kind of high-pressure frequency-conversion auto by pass cabinet according to claim 1, it is characterised in that first control module is consolidated
Due to the cabinet (1) interior side, second control module is fixed on opposite side relative in the cabinet (1).
A kind of 3. high-pressure frequency-conversion auto by pass cabinet according to claim 2, it is characterised in that the inlet wire contactor (5),
Feed isolating switch (6), frequency converter (7), outlet disconnecting switch (8) and line contact device (9) are set gradually from top to bottom.
A kind of 4. high-pressure frequency-conversion auto by pass cabinet according to any one of claims 1 to 3, it is characterised in that the outside
Control module is arranged on the cabinet (1) outer wall or in the Central Control Room away from the cabinet (1).
A kind of 5. high-pressure frequency-conversion auto by pass cabinet according to any one of claims 1 to 3, it is characterised in that the outside
Electrical equipment is high-voltage motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720714220.XU CN206820639U (en) | 2017-06-19 | 2017-06-19 | A kind of high-pressure frequency-conversion auto by pass cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720714220.XU CN206820639U (en) | 2017-06-19 | 2017-06-19 | A kind of high-pressure frequency-conversion auto by pass cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206820639U true CN206820639U (en) | 2017-12-29 |
Family
ID=60761189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720714220.XU Active CN206820639U (en) | 2017-06-19 | 2017-06-19 | A kind of high-pressure frequency-conversion auto by pass cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206820639U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112682310A (en) * | 2020-12-18 | 2021-04-20 | 江西三川节能股份有限公司 | Cement plant high temperature fan economizer system |
-
2017
- 2017-06-19 CN CN201720714220.XU patent/CN206820639U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112682310A (en) * | 2020-12-18 | 2021-04-20 | 江西三川节能股份有限公司 | Cement plant high temperature fan economizer system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A high voltage variable frequency automatic bypass cabinet Effective date of registration: 20220628 Granted publication date: 20171229 Pledgee: Bank of China Limited Wuhan Municipal sub branch Pledgor: HUBEI CHUTIAN ELECTRIC CO.,LTD. Registration number: Y2022420000194 |