WO2021225547A1 - Procédé de fonctionnement hybride d'unités de tiroir dans des panneaux de centre de commande de moteurs (mcc) - Google Patents

Procédé de fonctionnement hybride d'unités de tiroir dans des panneaux de centre de commande de moteurs (mcc) Download PDF

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Publication number
WO2021225547A1
WO2021225547A1 PCT/TR2021/050391 TR2021050391W WO2021225547A1 WO 2021225547 A1 WO2021225547 A1 WO 2021225547A1 TR 2021050391 W TR2021050391 W TR 2021050391W WO 2021225547 A1 WO2021225547 A1 WO 2021225547A1
Authority
WO
WIPO (PCT)
Prior art keywords
motor control
contacts
drawer unit
control center
drawer
Prior art date
Application number
PCT/TR2021/050391
Other languages
English (en)
Inventor
Alp Arslan Ok
Original Assignee
Eae Elektroteknik San. Ve Tic. A. S.
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 Eae Elektroteknik San. Ve Tic. A. S. filed Critical Eae Elektroteknik San. Ve Tic. A. S.
Priority to EP21799757.6A priority Critical patent/EP4147314A1/fr
Publication of WO2021225547A1 publication Critical patent/WO2021225547A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/26—Casings; Parts thereof or accessories therefor
    • H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
    • H02B1/32—Mounting of devices therein
    • H02B1/34—Racks
    • H02B1/36—Racks with withdrawable units
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B11/00—Switchgear having carriage withdrawable for isolation
    • H02B11/12—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal
    • H02B11/127—Withdrawal mechanism
    • H02B11/133—Withdrawal mechanism with interlock

Definitions

  • the present invention relates to the hybrid operation method of drawer units in Motor Control Center (MCC) panels, which is a system or method for motor control in general and which simplifies the retractable subunits located in the motor control center that connects the motor control components to the power supply and the mechanical locking means required for them and increases personnel safety in specifically.
  • MCC Motor Control Center
  • the drawers here have a second contact structure called auxiliary contact in addition to a contact structure called the main contact.
  • Two contact structures are located at the back of the drawer.
  • the load circuit contacts are designed for the connection between the distribution busbars positioned vertically at the back of the panel and the motor, while the control circuit contacts are designed for the connection to the auxiliary circuits cables that are used to control the load circuit elements.
  • drawers with this type of method have the risk of accidentally being closed to the closed position or returning to the fully removed position from the partially removed position. Such an accident can happen as a result of something falling on the drawer or accidentally leaning on a person. This kind of accidental change of position can cause a change in the current situation, which is dangerous. On the other hand, arc striking or arc flashing, flame formation can occur when one of the drawers is partially or completely retracted, which is very dangerous.
  • the process of combining or separating the main contacts with the distribution bar is carried out from outside the drawer door by using the rotatable handle located inside the drawer and connected to the mechanism.
  • This main branch can be mechanically interlocked with another arm that moves the contacts of the control circuit, or the same can be done using a single multi-position lever.
  • the important thing here is that the drawer is fully seated and its door is closed during the control operation performed by touching the handle.
  • a system and method for connecting supply power to motor control components includes use of a motor control center subunit with moveable supply power contacts. After a motor control center subunit is secured into a motor control center compartment, the supply power contacts may be advanced to engage supply power buses. For disconnection, the supply power contacts may be retracted and isolated from the buses before physical removal of the subunit. ” statements are included.
  • switching device comprising a housing, a first electrical contact and a second electrical contact.
  • the switching device further includes a Geneva drive comprising a first drive wheel arranged to drive the first electrical contact between a first connected position and a first disconnected position relative to the housing.
  • the Geneva drive further includes a second drive wheel arranged to drive the second electrical contact between a second connected position with respect to the housing and a second disconnected position.
  • the Geneva drive also includes a drive wheel with a drive pin arranged to alternately drive the first driven wheel and the second driven wheel. ” statements are included.
  • the said patent application discloses a switching device comprising a housing, a first electrical contact and a second electrical contact.
  • the object of the invention is to present a method that enables the hybrid operation of drawer units in Motor Control Center (MCC) panels.
  • MCC Motor Control Center
  • Another object of the invention is to introduce a simpler and therefore reliable new method to bring the drawer units used to energize and deactivate the motors located in the motor control centers to the ON, TEST and REMOVED positions.
  • Another object of the invention is to provide a method that allows the control circuit contacts to change their position independently of the load contacts.
  • Another object of the invention is to provide a method that prevents the main contacts from being removed or inserted when they are in the ON position.
  • Another object of the invention is to provide a method that simplifies the retractable subunits located in the motor control center and the mechanical locking means required for them.
  • Another object of the invention is to provide a method that increases personnel safety in the motor control center.
  • Figure - 1 is the view of the motor control center panel where the drawer unit is placed, according to the invention
  • Figure - 2 are the views showing the positions of the drawer unit which is the subject of the invention.
  • the present invention relates to the hybrid operation method for Motor Control Center (MCC) panels (A) to bring the drawer units (1) to the ON, OFF and DISCONNECTED positions, which simplifies the retractable subunits located in the motor control center that connects the motor control components to the power supply and the mechanical locking means required for them and increases personnel safety in specifically and which is including moving contacts (2) positioned as load contacts and auxiliary contacts (3) positioned as control circuit contacts characterized in that; includes the method steps of fixing the drawer unit (1) to the motor control center panel (A) in order to connect said moving contacts (2) to the vertical distribution busbar, is bringing the drawer unit (1) to the "ON" and "OFF” positions with the help of the mechanism lever (6) located on the front face, after the drawer unit (1) is completely placed in the motor control center panel (A) and the front surfaces are aligned, the auxiliary contacts (3) positioned at the rear of the said drawer unit (1) are in the closed position when the said drawer unit (1) is in ON and ON positions, in order to bring it to the DISCONNECTED position, holding the
  • Figure - 1 shows the view of the motor control center panel (A) where the drawer unit (1) is placed, according to the invention.
  • Figure - 2 shows the views showing the positions of the drawer unit (1) which is the subject of the invention.
  • the drawer unit (1) which is the subject of the invention, basically consists of moving contacts (2), auxiliary contacts (3), input circuit (4), output circuit (5), mechanism lever (6) and locking button (7).
  • auxiliary contacts (3) are fixed at the rear of the drawer unit (1), and they open when the drawer unit (1) is pulled completely and close when it is fitted and fixed.
  • the auxiliary contacts (3) change their position independently of the movable contacts (2) positioned as load contacts.
  • the auxiliary contacts (3) are in the closed position while the drawer unit (1) is in a seated and safe position.
  • the OFF position is also the TEST mode.
  • the said drawer unit (1) has a locking mechanism that prevents the movable contacts (2) from being removed or inserted when they are in the ON position.
  • the said drawer unit (1) is brought to the DISCONNECTED position in order to de energize both movable contacts (2) and auxiliary contacts (3).
  • the drawer unit (1) In order to bring it to the DISCONNECTED position, while the drawer unit (1) is in the OFF position, the drawer unit (1) is held by the handles and at the same time the lock button (7) is pressed and pulled back. In this way, all contacts (2,3) are separated from each other. For maintenance and repair purposes, the drawer unit (1) is now completely suitable to be separated from the motor control center panel (A).

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Trip Switchboards (AREA)

Abstract

La présente invention concerne un procédé de fonctionnement hybride d'unités de tiroir (1) dans des panneaux de centre de commande de moteurs (MCC) (A), qui est un système ou un procédé de commande de moteurs en général et qui simplifie les sous-unités rétractables situées dans le centre de commande de moteurs qui connecte les composants de commande de moteurs à l'alimentation électrique et le moyen de verrouillage mécanique nécessaire pour ces derniers et accroît particulièrement la sécurité du personnel.
PCT/TR2021/050391 2020-05-07 2021-04-27 Procédé de fonctionnement hybride d'unités de tiroir dans des panneaux de centre de commande de moteurs (mcc) WO2021225547A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP21799757.6A EP4147314A1 (fr) 2020-05-07 2021-04-27 Procédé de fonctionnement hybride d'unités de tiroir dans des panneaux de centre de commande de moteurs (mcc)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR2020/07195 2020-05-07
TR202007195 2020-05-07

Publications (1)

Publication Number Publication Date
WO2021225547A1 true WO2021225547A1 (fr) 2021-11-11

Family

ID=78468178

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/TR2021/050391 WO2021225547A1 (fr) 2020-05-07 2021-04-27 Procédé de fonctionnement hybride d'unités de tiroir dans des panneaux de centre de commande de moteurs (mcc)

Country Status (2)

Country Link
EP (1) EP4147314A1 (fr)
WO (1) WO2021225547A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080081516A1 (en) * 2006-09-29 2008-04-03 Rockwell Automation Technologies, Inc. System and method for automatically securing a motor control center
US20110032663A1 (en) * 2009-08-05 2011-02-10 Daniel Jason Leeman Motor control center and subunit therefor
US9941674B1 (en) * 2016-12-09 2018-04-10 General Electric Company Systems for motor control center buckets

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080081516A1 (en) * 2006-09-29 2008-04-03 Rockwell Automation Technologies, Inc. System and method for automatically securing a motor control center
US20110032663A1 (en) * 2009-08-05 2011-02-10 Daniel Jason Leeman Motor control center and subunit therefor
US9941674B1 (en) * 2016-12-09 2018-04-10 General Electric Company Systems for motor control center buckets

Also Published As

Publication number Publication date
EP4147314A1 (fr) 2023-03-15

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