Howard HI-104 Single-Phase Pad Transformer - Manual (Page 2)

Document 2.4.96, Revision 0
March, 2013
2
Single-Phase Pad-Mounted Compartmental-Type Distribution Transformers
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READ THIS IMPORTANT SAFETY INFORMATION
READ THIS ENTIRE INSTRUCTION MANUAL CAREFULLY AND BECOME FAMILIAR WITH THE EQUIP-
MENT AND ALL SAFETY-RELATED INFORMATION BEFORE PROCEEDING WITH INSTALLATION, OP-
ERATION, OR MAINTENANCE ACTIVITIES.
Safe use of this equipment is dependent on proper installation, operation, and maintenance proce-
dures. Follow all applicable local and national codes.
Do not attempt to service or perform maintenance activities on the equipment until it has been ef-
fectively de-energized, and all high-voltage and low-voltage bushing terminals have been properly
grounded.
Only qualified personnel should install, maintain, and operate this equipment. Qualified personnel
are those who are trained in the installation, maintenance, and operation of high-voltage equipment,
trained in the proper use of personal protective equipment (PPE) and trained in appropriate first aid
procedures. Refer to NFPA 70E.
Do not rely solely on fuse removal or switch position as conclusive indication that a transformer is
de-energized. Be absolutely certain that a transformer is de-energized by checking for zero voltage
on all terminals.
Certain information in this manual is marked with the words DANGER, WARNING, or CAUTION, which
indicate hazards as listed below.
DANGER indicates an imminently hazardous situation which, if not avoided, will result in death
or serious personal injury, and could also result in damage to the equipment.
WARNING indicates a potentially hazardous situation which, if not avoided, could result in
death or serious personal injury, and could also result in damage to the equipment.
CAUTION indicates a potentially hazardous situation which, if not avoided, could result in minor
or moderate personal injury, and could also result in damage to the equipment.
These instructions are intended as a general guide for the installation, operation and maintenance of
the equipment, when operated in “Usual Service Conditions” as defined in IEEE Standard C57.12.00.
Although every effort has been made to ensure accuracy and completeness, these instructions do
not address every conceivable application or circumstance that might be encountered. Howard In-
dustries makes no representation or warranty with respect to, and assumes no responsibility for the
completeness, accuracy, sufficiency, or usefulness of, these instructions. Features presented herein
may not be present in all equipment designs. Standard and optional features are subject to change
without notice.
Questions regarding installation, operation, and maintenance of the equipment, particularly when
encountering unusual or special circumstances which may not be sufficiently covered by these in-
structions, should be directed to the Howard Industries Transformer Division.