This part of IEC 62271 applies to three-pole-operated fused circuit-switchers designed with rated voltages above 1 kV up to and including 52 kV for use on three-phase alternating current systems of either 50 Hz or 60 Hz.
They can be designed either as stand-alone devices, or be embedded in a switchgear and controlgear assembly.
They are intended to be used for circuits or applications requiring only a normal mechanical and electrical endurance capability. Such applications cover protection of HV/LV transformers for instance, but exclude distribution lines or cables, as well as motor circuits and capacitor bank circuits.
Short-circuit conditions with low currents, up to the fused circuit-switcher rated take-over current, are dealt with by supplementary devices (strikers, relays, etc.), properly arranged, tripping the circuit-switcher. Current-limiting fuses are incorporated in order to ensure that the short-circuit breaking capacity of the device is above that of the circuit-switcher alone.
Cross References:EN 60282-1:2009
IEC 62271-1:2017
IEC 62271-105:2012
EN 62271-103:2011
EN 62271-105:2012
EN 62271-100:2009/A1:2012
IEC 62271-100:2008/AMD2:2017
IEC 60282-1:2009/AMD1:2014
EN 62271-1:2017
IEC 60282-1:2009
EN 62271-100:2009/A2:2017
EN 60282-1:2009/A1:2014
IEC 62271-100:2008/AMD1:2012
IEC 62271-103:2011
EN 62271-100:2009
IEC 62271-100:2008
IEC 62271-201
IEC/TR 62655
EN IEC 62271-102
IEC 62271-200
IEC 60050
EN 62271-201
EN 62271-200
IEC 62271-102
IEEE C37.016
All current amendments available at time of purchase are included with the purchase of this document. | File Size : | 1
file
, 1.8 MB |
| ISBN(s) : | 9780580517983 |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 60 |
| Product Code(s) : | 30368301, 30368301, 30368301 |
| Published : | 07/22/2019 |
