CN203206154U - Star-delta start cabinet - Google Patents

Star-delta start cabinet Download PDF

Info

Publication number
CN203206154U
CN203206154U CN 201320219134 CN201320219134U CN203206154U CN 203206154 U CN203206154 U CN 203206154U CN 201320219134 CN201320219134 CN 201320219134 CN 201320219134 U CN201320219134 U CN 201320219134U CN 203206154 U CN203206154 U CN 203206154U
Authority
CN
China
Prior art keywords
isolating switch
star
phase line
angle
angle point
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.)
Active
Application number
CN 201320219134
Other languages
Chinese (zh)
Inventor
肖勇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHENGDU MOLO ELECTRIC Co Ltd
Original Assignee
CHENGDU MOLO ELECTRIC Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by CHENGDU MOLO ELECTRIC Co Ltd filed Critical CHENGDU MOLO ELECTRIC Co Ltd
Priority to CN 201320219134 priority Critical patent/CN203206154U/en
Application granted granted Critical
Publication of CN203206154U publication Critical patent/CN203206154U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model discloses a star-delta start cabinet, comprising a star-angle inverted switch circuit and a circuit breaker circuit which are interconnected, wherein the star-angle inverse-connection switch circuit comprises star point isolation switches (QSY) and angle point isolating switches (QS delta), Y-shaped connecting wires are arranged between the star point isolation switches (QSY) and the angle point isolating switches (QS delta), each Y-shaped connecting wire comprises an output contact and 2 input contacts, the 2 input contacts are respectively connected with the star point isolation switches (QSY) and the angle point isolating switches (QS delta), the star point isolation switches (QSY) are in interlocking connection with the angle point isolating switches (QS delta) through a interlocking device (Q), and input contacts of the angle point isolating switches (QS delta) are connected with output contacts of a three-phase power supply of the circuit breaker circuit. The star-delta start cabinet has the advantages that the device is simple in structure and low in cost, and the star-angle operation switching and protection of a motor or a transformer load can be realized.

Description

The star delta start cabinet
Technical field
The utility model relates to high voltage switchgear, is used for the star of motor or transformer load-angle operation and switches and protection, specifically refers to the star delta start cabinet.
Background technology
Traditional motor or the high voltage switchgear of transformer load, or be to adopt the star-connection method to connect power supply, or adopt angle star connection to connect power supply.The two can not switchover operation.In practical application be, sometimes need to carry out star-angle operation and switch when operation, we need to research and develop a kind of switch cubicle that carries out above-mentioned switching for this reason.
The utility model content
The purpose of this utility model is to provide the star delta start cabinet, and this apparatus structure is simple, and cost is low, can realize that the star of motor or transformer load-angle operation switches and protection.
Implementation of the present utility model is as follows: the star delta start cabinet, comprise interconnected star angle reverse graft switching circuit and breaker circuit, described star angle reverse graft switching circuit comprises asterism isolating switch and angle point isolating switch, there is the Y shape connecting line between asterism isolating switch and the angle point isolating switch, the Y shape connecting line exists an output contact and 2 input contacts, 2 input contacts are connected with the angle point isolating switch with the asterism isolating switch respectively, carry out chain connection by chain machine between asterism isolating switch and the angle point isolating switch, the input contact of angle point isolating switch is connected with the three phase mains output contact of breaker circuit.
Undertaken chain by chain machine between asterism isolating switch and the angle point isolating switch, when the asterism isolating switch is closed, the angle point isolating switch disconnects, when the angle point isolating switch is closed, the asterism isolating switch disconnects, like this as long as a switch that starts in asterism isolating switch and the angle point isolating switch can be realized star-angle operation switching, concrete handoff procedure is: when 1, power load is the star-connection operation, closed asterism isolating switch, this moment, the angle point isolating switch disconnected, three phase mains from the breaker circuit input enters the star-connection pattern, for load provides power supply.When 2, the power load angle-type scheme moves, the closed angle point isolating switch of elder generation, this moment, the asterism isolating switch disconnected, the three phase mains of breaker circuit input, entering angle type Connection Mode.
Described breaker circuit comprises main bus bar, main isolating switch, the combined floodgate circuit breaker that connects successively, and minute three road lines are respectively A phase line, B phase line, C phase line behind the combined floodgate circuit breaker, and A phase line, B phase line, C phase line all are connected with the input contact of angle point isolating switch.
Breaker circuit is as the auxiliary power supply switchgear, handoff procedure is: when 1, power load is the star-connection operation, closed asterism isolating switch, this moment, the angle point isolating switch disconnected, the main isolating switch that closes again, the circuit breaker that closes a floodgate at last is from the three phase mains of breaker circuit input, enter the star-connection pattern, for load provides power supply.When 2, the power load angle-type scheme moves, the closed angle point isolating switch of elder generation, this moment, the asterism isolating switch disconnected, the main isolating switch that closes again, the circuit breaker that closes a floodgate at last, the three phase mains of breaker circuit input, entering angle type Connection Mode.
Be provided with cable end on the line between the input contact of A phase line, B phase line, C phase line and angle point isolating switch.Cable end is applied to wiring when distant in use.
Be provided with current transformer on described A phase line, B phase line, the C phase line.Current transformer is for detection of the current status on the path of flowing through,
Also be provided with electrification display on the circuit after the combined floodgate circuit breaker.Whether the electrification display detection line is charged.
The other earthing contact that is provided with of main isolating switch.Therefore when the gear of main isolating switch is received earthing contact, can realize loop ground connection.
The utility model has the advantage of: this apparatus structure is simple, and cost is low, can realize that the star of motor or transformer load-angle operation switches and protection.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
Embodiment one
As shown in Figure 1.
The star delta start cabinet, comprise interconnected star angle reverse graft switching circuit and breaker circuit, described star angle reverse graft switching circuit comprises asterism isolating switch QSY and angle point isolating switch QS △, there is the Y shape connecting line between asterism isolating switch QSY and the angle point isolating switch QS △, the Y shape connecting line exists an output contact and 2 input contacts, 2 input contacts are connected with angle point isolating switch QS △ with asterism isolating switch QSY respectively, carry out chain connection by chain machine Q between asterism isolating switch QSY and the angle point isolating switch QS △, the input contact of angle point isolating switch QS △ is connected with the three phase mains output contact of breaker circuit.
Undertaken chain by chain machine Q between asterism isolating switch QSY and the angle point isolating switch QS △, when asterism isolating switch QSY is closed, angle point isolating switch QS △ disconnects, when angle point isolating switch QS △ is closed, asterism isolating switch QSY disconnects, like this as long as a switch that starts among asterism isolating switch QSY and the angle point isolating switch QS △ can be realized star-angle operation switching, concrete handoff procedure is: 1, when power load is the star-connection operation, closed asterism isolating switch QSY, this moment, angle point isolating switch QS △ disconnected, three phase mains from the breaker circuit input enters the star-connection pattern, for load provides power supply.When 2, the power load angle-type scheme moves, the closed angle point isolating switch QS △ of elder generation, this moment, asterism isolating switch QSY disconnected, the three phase mains of breaker circuit input, entering angle type Connection Mode.
Described breaker circuit comprises main bus bar TMY, main isolating switch QS, the combined floodgate circuit breaker Q F that connects successively, minute three road lines behind the combined floodgate circuit breaker Q F, be respectively A phase line, B phase line, C phase line, A phase line, B phase line, C phase line all are connected with the input contact of angle point isolating switch QS △.
Breaker circuit is as the auxiliary power supply switchgear, handoff procedure is: when 1, power load is the star-connection operation, closed asterism isolating switch QSY, this moment, angle point isolating switch QS △ disconnected, the main isolating switch QS that closes again, the circuit breaker Q of closing a floodgate at last F is from the three phase mains of breaker circuit input, enter the star-connection pattern, for load provides power supply.When 2, the power load angle-type scheme moves, the closed angle point isolating switch QS △ of elder generation, this moment, asterism isolating switch QSY disconnected, the main isolating switch QS that closes again, the circuit breaker Q of closing a floodgate at last F, the three phase mains of breaker circuit input, entering angle type Connection Mode.
Be provided with cable end on the line between the input contact of A phase line, B phase line, C phase line and angle point isolating switch QS △.Cable end is applied to wiring when distant in use.
Be provided with current transformer on described A phase line, B phase line, the C phase line.Current transformer is for detection of the current status on the path of flowing through,
Also be provided with electrification display C on the circuit after the combined floodgate circuit breaker Q F.Whether electrification display C detection line is charged.
The other earthing contact P1 that is provided with of main isolating switch QS.Therefore when the gear of main isolating switch QS is received earthing contact P1, can realize loop ground connection.
As mentioned above, then can well realize the utility model.

Claims (6)

1. star delta start cabinet, it is characterized in that: comprise interconnected star angle reverse graft switching circuit and breaker circuit, described star angle reverse graft switching circuit comprises asterism isolating switch (QSY) and angle point isolating switch (QS △), there is the Y shape connecting line between asterism isolating switch (QSY) and the angle point isolating switch (QS △), the Y shape connecting line exists an output contact and 2 input contacts, QS △ is connected with asterism isolating switch (QSY) respectively in 2 input contacts with the angle point isolating switch) be connected, carry out chain connection by chain machine (Q) between asterism isolating switch (QSY) and the angle point isolating switch (QS △), the input contact of angle point isolating switch (QS △) is connected with the three phase mains output contact of breaker circuit.
2. star delta start cabinet according to claim 1, it is characterized in that: described breaker circuit comprises main bus bar (TMY), main isolating switch (QS), the combined floodgate circuit breaker (QF) that connects successively, minute three road lines behind the combined floodgate circuit breaker (QF), be respectively A phase line, B phase line, C phase line, A phase line, B phase line, C phase line all are connected with the input contact of angle point isolating switch (QS △).
3. star delta start cabinet according to claim 2 is characterized in that: be provided with cable end on the line between the input contact of A phase line, B phase line, C phase line and angle point isolating switch (QS △).
4. star delta start cabinet according to claim 2 is characterized in that: be provided with current transformer on described A phase line, B phase line, the C phase line.
5. star delta start cabinet according to claim 2 is characterized in that: also be provided with electrification display (C) on combined floodgate circuit breaker (QF) circuit afterwards.
6. star delta start cabinet according to claim 2 is characterized in that: the other earthing contact (P1) that is provided with of main isolating switch (QS).
CN 201320219134 2013-04-26 2013-04-26 Star-delta start cabinet Active CN203206154U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320219134 CN203206154U (en) 2013-04-26 2013-04-26 Star-delta start cabinet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201320219134 CN203206154U (en) 2013-04-26 2013-04-26 Star-delta start cabinet

Publications (1)

Publication Number Publication Date
CN203206154U true CN203206154U (en) 2013-09-18

Family

ID=49150213

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201320219134 Active CN203206154U (en) 2013-04-26 2013-04-26 Star-delta start cabinet

Country Status (1)

Country Link
CN (1) CN203206154U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104050855A (en) * 2014-07-02 2014-09-17 黄克亚 Star-delta starting control experiment board based on PLC

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104050855A (en) * 2014-07-02 2014-09-17 黄克亚 Star-delta starting control experiment board based on PLC

Similar Documents

Publication Publication Date Title
CN205248819U (en) Looks switch is selected to three phase loads of low pressure
CN103812041B (en) Method for overhauling ring main unit of 10kV cable circuit without switching power supply off
CN101645684B (en) Variable frequency speed control branch circuit control device of high-frequency vibrating motor
CN203206154U (en) Star-delta start cabinet
CN104062580A (en) Portable breaker three-phase open phase actuation time calibrator
CN201717670U (en) Dual-power-supply switching device with overvoltage protection
CN203839919U (en) Multifunctional electric leakage protection device
CN201878067U (en) Auto-transformer device for soft start of high-power motor
CN103138384B (en) Configuration system and method for backup automatic switch in alternating current and soft direct current hybrid power supply area
CN204696794U (en) A kind of twin-power switch cabinet
CN201656555U (en) Three-power-supply automatic switching-over device
CN203930006U (en) Non-full phase tester actuation time of a kind of portable beaker three-phase
CN204464081U (en) A kind of isolation conversion switch for electric cleaner and isolation conversion switch case
CN204615638U (en) A kind of the soft of high-voltage cascade frequency converter opens circuit
CN203674683U (en) Vacuum breaker
CN201435619Y (en) Automatic transfer switch for triple power supplies
CN203014657U (en) Soft charging device used for high voltage frequency converter
CN202749184U (en) Pre-magnetizing device for transformer of high-power wind power complete machine test bench
CN202712093U (en) Automatic switching-on device for universal circuit breaker
CN107086552B (en) Protection circuit of extended cell wiring system
CN202435122U (en) Two-path power supply circuit
CN209217714U (en) A kind of dual power supply electric interlock control system
CN206313524U (en) Avoid the automatic change-over of neutral pole dangerous voltage
CN201523217U (en) Novel protecting device of speed-governing branch control cabinet of vibrating motor set
CN201523216U (en) Vibration motor speed-regulating branch pipe control cabinet protection device

Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model