Difference between Shielded Power & Control cable termination....for your philippine electrical concerns...needs...installation...orders...safeelectrical2013@gmail.com

Difference between Shielded Power & Control cable termination

Thread Starter: N. Vijay   Started: 6/23/2013 1:05 PM   Replies: 2

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  6/23/2013, 1:05 PM

N. Vijay Joined 3/17/2013 Last visit: 9/2/2013 Posts: 165 Rating:  (13)

(0)  Dear Technocrats, It is recommended in manuals to connect shield of the POWER cables at one end only. Suppose VFD to motor power cable shield to be grounded at VFD side, not at motor side. Similarly input power cable at VFD side not at switchgear side to avoid circulating currents But while connecting signal cables like AI, AO is the rule same or it shall be grounded at both ends Regards, Vijay

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  6/23/2013, 1:21 PM

PISCEAN 2010 Joined 4/23/2010 Last visit: 8/30/2013 Posts: 1442 Rating:  (71)	(0)  Hello, The purpose of grounding shield is to provide pure/non-polluted signals to equipment, whether it is VFD, scale or controller etc. This shield grounding eliminates spikes, noise etc ie unwanted signals to ground. At VFD, proper care of grounding is taken, thus it is ensuered that EMC signals are fully grounded. On the other hand on power side, these signals EMC, will not have adverse effect on motors & switchgears. As such it is always recomended to connect shield to ground at the equipment side, let it be power & control. If user want to connect it to other side, care must be taken to avoid recirculation of signals. Hope this helps you.  Tell me and I will forget. Show me and I will remember. Involve me and I will understand. -Confucius
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  6/23/2013, 7:07 PM

Vithani Joined 7/8/2009 Last visit: 9/4/2013 Posts: 1631 Rating:  (424)

(0)  Very nice explanation To add this, please have a look at following discussion http://www.control.com/thread/1026237531 And also see attachment - nice explanation by GE Regards, Devesh Vithani Attachment: shielding.pdf  (10 Downloads) I dont Like people driving Fast, thats the reason I overtake them ;) ELECTRICAL SUPPLIER IN METRO MANILA ELECTRICAL SUPPLIER IN QUEZON CITY ELECTRICAL SUPPLIER IN LUZON ELECTRICAL SUPPLIER IN VISAYA ELECTRICAL SUPPLIER IN SUBIC ELECTRICAL SUPPLIER IN CLARK ELECTRICAL SUPPLIER IN PHILIPPINE INDUSTRIAL PARK ELECTRICAL SUPPLIER IN PHILIPPINE ECONOMIC ZONE ELECTRICAL SUPPLIER FOR PHILIPPINE FOREIGNERS ELECTRICAL SUPPLIER FOR PHILIPPINE PROVINCES FOR YOUR PHILIPPINE ELECTRICAL CONCERNS...NEEDS...INSTALLATION...QUOTATION...ORDERS KINDLY EMAIL US: SAFEELECTRICAL2013@GMAIL.COM                  SAFEELECTRICALONLINE@GMAIL.COM FOR YOUR PHILIPPINE ELECTRICAL CONCERNS...NEEDS...INSTALLATION...QUOTATION...ORDERS: KINDLY EMAIL US: SAFEELECTRICAL2013@GMAIL.COM                  SAFEELECTRICALONLINE@GMAIL.COM FOR PHILIPPINE INQUIRIES LIKE LIGHTNING ARRESTER SUPPLY AND INSTALLATION CONTACT US:   FOR PHILIPPINE INQUIRIES LIKE LIGHTNING ARRESTER SUPPLY AND INSTALLATION CONTACT US:  FOR PHILIPPINE INQUIRIES LIKE LIGHTNING ARRESTER SUPPLY AND INSTALLATION CONTACT US:  MOBILE NUMBERS: SMART: +63 09079522099                         +63 09214026477                    GLOBE: +63 09273919600                        +63 09157920129                 SUN:   +63 9227192434                        +63 09336253505                 WIRELESS LANDLINE:   +63 4068727                                      +63 4922566                                  LANDLINE:    +63 4317553 HURRY..CALL US...NOW!!!! THANK YOU FOR YOUR ORDERS AND INQUIRIES... LIGHTNING ARRESTER SUPPLIER AND INSTALLER IN THE PHILIPPINES LIGHTNING ARRESTER SUPPLIER AND INSTALLER IN THE PHILIPPINES LIGHTNING ARRESTER SUPPLIER AND INSTALLER IN METRO MANILA LIGHTNING ARRESTER SUPPLIER AND INSTALLER IN METRO MANILA LIGHTNING ARRESTER SUPPLIER AND INSTALLER IN THE PHILIPPINE ECONOMIC ZONE LIGHTNING ARRESTER SUPPLIER AND INSTALLER IN THE PHILIPPINE ECONOMIC ZONE LIGHTNING ARRESTER SUPPLIER AND INSTALLER IN THE VISAYA REGION LIGHTNING ARRESTER SUPPLIER AND INSTALLER IN THE VISAYAS REGION LIGHTNING ARRESTER SUPPLIER AND INSTALLER IN THE MINDANAO LIGHTNING ARRESTER SUPPLIER AND INSTALLER IN THE MINDANAO FOR YOUR LIGHTNING STRIKE PROTECTION...LET US HELP YOU AVOID SUCH ACCIDENTS... BEFORE IT IS TOO LATE...BEFORE IT IS TOO LATE... WHEN LIGHTNING STRIKE HIT YOU.. I GUARANTEE YOU..YOU'LL NEVER LIVE TO TELL YOUR EXPERIENCE... DON'T BE THE NEXT VICTIM...PROTECT YOURSELF..YOUR FAMILY..YOUR BUSINESS AT ALL TIMES.. INSTALL A LIGHTNING ARRESTER IN YOUR PLACE...DO IT NOW BEFORE YOUR CAUGHT UNAWARE... IF YOU HAVE LIGHTING PROTECTION INSTALLED... YOU'LL HAVE PEACE OF MIND...YOU CAN SLEEP WELL EVEN WHEN LIGHTNING STRIKES... YOU KNOW YOUR WELL PROTECTED... IN YOUR HOME, IN YOUR PLACE OF BUSINESS AND IN YOUR PROPERTIES... HURRY..CALL US...NOW!!!! THANK YOU FOR YOUR ADVANCE ORDERS AND INQUIRIES...