Principal Sales, Inc. Product Lines

Principal Sales' high quality product lines are designed to cost-effectively address the major substation maintenance and substation equipment replacement issues as identified by today's electric utility asset managers. Our current product lines include the following categories of equipment:

High Accuracy Instrument Transformers for Protection, Metering and Control

Dry, molded and oil-filled instrument transformers for applications from generation through transmission and sub-transmission to distribution systems. For new applications or to avoid potential loss of critical protection and revenue metering by replacing aging equipment. Original instrument transformer designs from selected 600 volt through 230 kV units.
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Reduce Maintenance Costs & Reliability with Transformer On-line Condition Monitoring

Comprehensive Transformer Asset Health Monitoring Systems can be designed to economically monitor most of the common transformer failure modes including windings, bushings, LTC’s and others. Greatly improve the ability to capture impending failures early enough to allow a scheduled shutdown and outage thereby preventing major failures.
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Save Money and Down-time with Animal-induced Outage & Equipment Damage Mitigation

Pole Guard and Line Guard keep squirrels and other animals away from your transformers and substations, dramatically reducing costs associated with the nuisance outages and equipment damage they can induce. Unique product line is injection molded of heavy-duty polypropylene, highly resistant to environmental stress cracking and weathering.
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(614) 580-5393

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Principal Sales, Inc.

P. O. Box 98
Orient, OH 43146

Representing Quality Products for all your
Electrical Substation Asset Management Needs

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