Rockwell Automation 1502 Medium Voltage 400A Contactor - Series E - Manual (Page 14)

14 Rockwell Automation Publication 1502-UM052H-EN-P - June 2013
Chapter 2 Receiving and Handling
Pre-Energization Inspection Before placing the contactor in service, inspect it carefully for possible damage
sustained in transit or maintenance:
• Check housing for any cracks or breaks due to impact.
• Push on the armature plate and rotating shaft to ensure mechanism is in
good working order.
• Inspect the contactor for dirt, stray or loose hardware, tools or metal chips.
Vacuum clean if necessary.
Storage If it is necessary to store the contactor before it is put into service, be certain to
store it in a clean, dry area, free from dust and condensation. Do not store
contactor outdoors.
Storage temperature should be maintained between -20...65
°C (-4...149 °F). If
storage temperature fluctuates or if humidity exceeds 85%, space heaters should
be used to prevent condensation.
Vacuum Bottle Integrity Test The internal dielectric condition and vacuum integrity of the vacuum bottles is
determined by this test.
High-potential test instruments can be purchased to perform the vacuum bottle
integrity test. A Megger cannot be used to measure vacuum integrity because the
voltage is too low. One of the following AC Hi-pot testers is recommended as a
test instrument.
ATTENTION: Do not apply a voltage higher than 25,000V across the open
contacts of a vacuum bottle. Dangerous x-ray emissions may be produced.
ATTENTION: Vacuum bottles are thoroughly tested at the factory; however,
mishandling during shipment may cause damage. It is very important to
perform the vacuum bottle integrity test before energizing the contactor for the
first time, and before it is returned to service after maintenance or repair; test
may result in personal injury or damage to the equipment if the vacuum bottle
integrity fails.
ATTENTION: High voltage testing is potentially hazardous. Use caution when
performing the Hi-pot test. Failure to do so may result in sever burns, injury or
death.
MANUFACTURER ADDRESS
Mitsubishi Type VI #4U17 Chicago, Ill., USA
Jennings Model JHP-70A San Jose, CA., USA
Hipotronics Model 7BT 60A Brewster, NY, USA