Table of Contents
Advertisement
AK-2-25, AK-2A-25, & AK-3A-25 LV-VSR
Breaker-To-Motor Starter Conversion
5.A.3 INSERTION PROCEDURE
WARNING
ARC-FLASH INCIDENCES WITH LV SWITCHGEAR CAN OCCUR DURING
THE PROCESS OF INSERTING AND REMOVING LV-VSR DEVICES IN
SWITCHGEAR CUBICLES. IT IS STRONGLY RECOMMENDED THAT PROPER
PPE (PERSONAL PROTECTIVE EQUIPMENT) BE WORN BY PERSONNEL
WHO RACK LV-VSRS.
BEFORE PLACING THE LV-VSR IN SERVICE, CAREFULLY FOLLOW THE
INSTALLATION PROCEDURE BELOW AND THE SAFE PRACTICES SET
FORTH IN SECTION 2. NOT FOLLOWING THE PROCEDURE MAY RESULT
IN INCORRECT LV-VSR OPERATION LEADING TO DEATH, BODILY INJURY,
AND PROPERTY DAMAGE.
THIS VACUUM BREAKER / STARTER REPLACEMENT IS NOT DESIGNED TO
OPERATE A SEPARATE EXTERNAL AUXILIARY SWITCH (MOC SWITCH).
DO NOT PERFORM MANUAL OR ELECTRICAL OPERATIONAL CHECKS
WITH THE LV-VSR IN THE 'CONNECT' POSITION BECAUSE OF THE
POSSIBILITY OF CONNECTING DE-ENERGIZED LOAD CIRCUITS TO THE
ELECTRICAL POWER SOURCE, RESULTING IN DEATH, PERSONAL INJURY
OR EQUIPMENT DAMAGE.
DO NOT ATTEMPT TO INSTALL OR OPERATE A LV-VSR UNTIL A VACUUM
INTEGRITY TEST IS PERFORMED.
INSERTION:
1. Ensure that the starter is open.
2. Place the Starter on the channels of the switchgear
enclosure with the guides on the sides of the starter level with
the channels. Slide the Starter part way into the enclosure. The
Starter will be obstructed by a position stop at the bottom of the
enclosure after the Starter has traveled only a short distance into
the enclosure. (Figure 5.A.5) To move the Starter into the 'Test'
position, lift the position stop handle located at the bottom right
of the enclosure. This will release the position stop and allow the
starter to move further into the enclosure.
3. Lift the racking handle forward (Figure 5.A.9 & 5.A.10) and
up as far as its travel will allow and push the Starter into the
enclosure until the racking pins on the handle assembly bear
against the housing racking cams on the side of the switchgear
enclosure.
Figure 5.A.5. Lifting Position Stop Handle
20
Instruction Book
IB019009EN November 2017 www.eaton.com
Figure 5.A.6. Initiating The Racking Arm On The AK-2-25-LV-VSR
Figure 5.A.7. Lifting Racking Handle On the AK-2-25-LV-VSR
Figure 5.A.8. AK-2-25-LV-VSR Clearance With Cell Modification
Advertisement
Table of Contents
