Recloser Element; Introduction; Recloser Statuses - GE MIFII GEK-106237P Instruction Manual

2.6 RECLOSER ELEMENT

2 PRODUCT DESCRIPTION
2.6RECLOSER ELEMENT

2.6.1 INTRODUCTION

The MIFII autorecloser allows producing up to four selectable reclosure 'shots' prior to locking out. Thanks to the use of
masks, the user can choose which conditions will produce the reclose initiation and what protection functions will be
enabled in each recloser shot. This allows implementing protection schemes that would require special wiring and functions
in conventional equipment.
As an example of application, the user may want the first protection trip to be for instantaneous overcurrent, and the next
2
trip to be timed over current, in order to allow a time for output fuses to burn of a feeder branch. For this purpose, it is
necessary to disable the IOC element after the first shot.
The reclose initiation can be started by a trip or from the physical input AR INITIATE. There are settings for selecting which
protection function and/or if physical input will initiate the autorecloser.
Also, settings are available for selecting which protection functions will be enabled after every autorecloser shot.

2.6.2 RECLOSER STATUSES

The following diagram describes the different possible statuses for the recloser and the transitions between statuses.
Figure 2–2: AUTORECLOSER GENERAL STATUS DIAGRAM
2-8 MIFII Digital Feeder Relay GEK-106237P