CN201966495U - High-voltage variable-frequency bypass switch cabinet - Google Patents
High-voltage variable-frequency bypass switch cabinet Download PDFInfo
- Publication number
- CN201966495U CN201966495U CN201120121305XU CN201120121305U CN201966495U CN 201966495 U CN201966495 U CN 201966495U CN 201120121305X U CN201120121305X U CN 201120121305XU CN 201120121305 U CN201120121305 U CN 201120121305U CN 201966495 U CN201966495 U CN 201966495U
- Authority
- CN
- China
- Prior art keywords
- isolating switch
- frequency
- frequency converter
- switch
- cabinet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model relates to a high-voltage variable-frequency bypass switch cabinet, which belongs to electrical engineering, and consists of a power frequency isolating switch, a frequency converter upper isolating switch, a frequency converter lower isolating switch, a power frequency contactor, a mechanical locking mechanism, an electromagnetic lock and a program lock element, wherein the upper part of a cabinet body is provided with two isolating switches, i.e. the frequency converter upper isolating switch and the power frequency isolating switch which facilitate the separation of a main bus chamber from a contactor chamber and are independently operated; and the lower part of the cabinet body is provided with the frequency converter lower isolating switch of three connection seats, which is convenient for examining a high-voltage frequency converter and ensures that a variable-frequency system is switched to a power frequency state, and the mechanical locking mechanism for realizing an interlocking function is installed between the power frequency isolating switch and the frequency converter lower isolating switch. The high-voltage variable-frequency bypass switch cabinet has the characteristics that: the action reliability of the switch cabinet can be improved, the switch cabinet is convenient to maintain and repair, and the application requirement of the users can be better satisfied.
Description
Technical field
The utility model relates to electric information, and cabinet is switched in particularly a kind of high-pressure frequency-conversion bypass, refers to be applicable to the employed high-pressure frequency-conversion bypass switching of high-tension motor variable-frequency speed-adjusting energy-saving cabinet especially.
Background technology
Switch at home in the design production of cabinet, see (the switching cabinet of introducing for this patent in the frame of broken lines in the accompanying drawing 2 as shown in Figures 1 and 2, the outer switch cubicle 1 of frame of broken lines provides power supply for high-tension motor 7, cabinet is switched in the frequency converter bypass of the high-tension motor 7 of high voltage converter 4 speed governing of use frequency control), general scheme is made up of isolating switch 6, power frequency contactor 5 under isolating switch on the frequency converter 2, power frequency isolating switch 3, the frequency converter.Basically all use electrical interlock on the frequency converter under isolating switch 2, power frequency isolating switch 3, the frequency converter between the isolating switch 6, according to operating experience, used auxiliary contact are easy to generate loose contact and influence the reliability of action in the electrical interlock system.And isolating switch 2 on the frequency converter, power frequency isolating switch 3 usefulness one are the combination disconnecting link, and to reduce cost, the defective of bringing thus is exactly if want to overhaul element in this cabinet, to necessarily require higher level's switch cubicle 1 to have a power failure, otherwise can't overhaul the high pressure components and parts that switch in the cabinet.
The utility model content
The purpose of this utility model is to provide a kind of and is convenient to maintenance and operates reliable high-pressure frequency-conversion bypass switch cabinet, solves the interior original paper of existing switch cubicle maintenance cabinet and necessarily requires higher level's switch cubicle to have a power failure, and the person can't not overhaul the problem of switching cabinet inner high voltage components and parts.
The utility model includes isolating switch, program latch fitting, magnetic padlock and mechanical lock under isolating switch on the frequency converter, power frequency isolating switch, power frequency contactor, the frequency converter.Two isolating switches of independent operation separately are equipped with on cabinet top: isolating switch and power frequency isolating switch on the frequency converter, so that the main bus bar chamber separates with the contactor chamber, satisfy the requirement of the LSC2B-PM continuity grade of GB3906-2006, influence the drawback of reliable in action to avoid single electrical interlock auxiliary contact to be easy to generate loose contact; Isolating switch under the frequency converter of three junction blocks is installed in the cabinet bottom, is convenient in the high voltage converter maintenance and makes frequency conversion system switch to the power frequency state, satisfies the demand that high-voltage motor runs without interruption.Isolating switch two cuttves are realized interlock function with mechanical lock between opening under power frequency isolating switch, the frequency converter.
On the frequency converter under isolating switch, power frequency isolating switch, the frequency converter isolating switch three all charged magnetic padlock of isolating switch, isolating switch installs additional mechanical interlocked under power frequency isolating switch and the frequency converter, only at isolating switch on power frequency isolating switch, the frequency converter all during position at separating brake, just can overhaul bypass and switch cabinet cabinet inner high voltage components and parts, promptly open preceding Xiamen, control with procedure lock between preceding Xiamen and the Xiamen, back, only when opening the preceding Xiamen of cabinet, could open the Xiamen, back and carry out maintenance work in the cabinet.
Compared with prior art, the utility model has the advantages that: increase the reliable in action of switching cabinet, satisfy the convenience of this cabinet Maintenance and Repair, satisfy user's switching cabinet instructions for use.
Description of drawings
Fig. 1 is the switching cabinet sectional schematic diagram of traditional pattern.
Fig. 2 is for switching the electric primary connection schematic diagram of cabinet.
Fig. 3 switches the front view schematic diagram of cabinet for the utility model.
Fig. 4 switches the sectional schematic diagram of cabinet for the utility model.
Sequence number implication in the accompanying drawing: 1. switch cubicle, 2. isolating switch on the frequency converter, 3. power frequency isolating switch, 4. high voltage converter, 5. power frequency contactor, 6. isolating switch under the frequency converter, 7. high-tension motor, 8. procedure lock, 9. electromagnetic lock, 10. mechanical lock.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described., switch cabinet and form to shown in the accompanying drawing 4 as accompanying drawing 2 by isolating switch 6,8 of procedure locks, electromagnetic lock 9 and mechanical lock 10 components and parts under isolating switch on the frequency converter 2, power frequency isolating switch 3, power frequency contactor 5, the frequency converter.Wherein:
Two isolating switches of independent operation separately are equipped with on cabinet top: isolating switch 2 and power frequency isolating switch 3 on the frequency converter, so that the main bus bar chamber separates with the contactor chamber, isolating switch 6 under the frequency converter of three junction blocks is installed in the cabinet bottom.6 liang of cuttves of isolating switch are realized interlock function with mechanical lock 10 between opening under power frequency isolating switch 3, the frequency converter.
The all charged magnetic padlock 9 of three isolating switches such as isolating switch 6 under isolating switch 2, power frequency isolating switch 3, the frequency converter on the frequency converter, isolating switch 6 installs additional mechanical interlocked under power frequency isolating switch 3 and the frequency converter, only at isolating switch 2 on power frequency isolating switch 3, the frequency converter all during position at separating brake, just can overhaul bypass and switch cabinet cabinet inner high voltage components and parts, promptly open preceding Xiamen.Control with procedure lock 8 between preceding Xiamen and the Xiamen, back, only when opening the preceding Xiamen of cabinet, could open the Xiamen, back and carry out maintenance work in the cabinet.
Claims (2)
1. cabinet is switched in a high-pressure frequency-conversion bypass, it is characterized in that comprising: isolating switch (6), procedure lock (8) part, magnetic padlock (9) and mechanical lock (10) under isolating switch on the frequency converter (2), power frequency isolating switch (3), power frequency contactor (5), the frequency converter, wherein:
Cabinet top is equipped with two and is made that main bus bar chamber and contactor chamber separate, the isolating switch of independent operation separately: isolating switch on the frequency converter (2) and power frequency isolating switch (3);
The cabinet bottom is equipped with to be convenient in high voltage converter maintenance and to make frequency conversion system switch to isolating switch (6) under the frequency converter of three junction blocks of power frequency state, and the mechanical lock (10) that realizes that interlock function is used is installed between isolating switch (6) two cuttves are opened under power frequency isolating switch (3), the frequency converter.
2. switch cabinet according to the described high-pressure frequency-conversion bypass of claim 1, it is characterized in that: the isolating switch all charged magnetic padlocks of (6) three isolating switches (9) under isolating switch on the frequency converter (2), power frequency isolating switch (3), the frequency converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120121305XU CN201966495U (en) | 2011-04-22 | 2011-04-22 | High-voltage variable-frequency bypass switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120121305XU CN201966495U (en) | 2011-04-22 | 2011-04-22 | High-voltage variable-frequency bypass switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201966495U true CN201966495U (en) | 2011-09-07 |
Family
ID=44529049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120121305XU Expired - Lifetime CN201966495U (en) | 2011-04-22 | 2011-04-22 | High-voltage variable-frequency bypass switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201966495U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104051177A (en) * | 2013-03-11 | 2014-09-17 | 台达电子工业股份有限公司 | Electrical device and manually operated bypass cabinet, and manually operated isolation knife switch thereof |
| CN105429038A (en) * | 2015-11-30 | 2016-03-23 | 株洲南车机电科技有限公司 | High-voltage variable frequency one-to-two manual bypass cabinet |
-
2011
- 2011-04-22 CN CN201120121305XU patent/CN201966495U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104051177A (en) * | 2013-03-11 | 2014-09-17 | 台达电子工业股份有限公司 | Electrical device and manually operated bypass cabinet, and manually operated isolation knife switch thereof |
| CN104051177B (en) * | 2013-03-11 | 2016-06-01 | 台达电子工业股份有限公司 | Electric installation, manual bypass cabinet and manual isolation knife lock thereof |
| CN105429038A (en) * | 2015-11-30 | 2016-03-23 | 株洲南车机电科技有限公司 | High-voltage variable frequency one-to-two manual bypass cabinet |
| CN105429038B (en) * | 2015-11-30 | 2018-06-22 | 株洲南车机电科技有限公司 | A kind of high-pressure frequency-conversion one drag two manual bypass cabinet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110907 |
|
| CX01 | Expiry of patent term |