Transformer Core types

Assorted Electrical
Transformer Core types

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Different types of transformer core assemblies are illustrated in this video with help of animation. The core and shell type of constructions are explained for single and 3 phase transformers.
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Different Types of Electrical Transformers presented by Katie Nyberg for Galco TV. Buy the items featured in this video at 800-337-1720 or visit:

Different types of transformers:
– power transformers
– distribution transformers
– auto-transformers
– isolation transformers
– current transformers
– potential transformers

Power Transformers are used primarily to couple electrical energy from a power supply line to a circuit system, or to components of the system.

Distribution transformers are used to supply relatively small amounts of power to residential and commercial areas.

The auto-transformer is a special type of power transformer. It consists of a single, continuous winding that is tapped on one side to provide either a step-up or a step-down function.

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An isolation transformer is a very unique transformer. It has a 1:1 turn’s ratio. Therefore, it does not step voltage up or down. Instead, it serves as a safety device.

A current transformer has a primary coil of one or more turns of heavy wire. It is always connected in series in the circuit in which current is to be measured. The secondary coil is made up of many turns of fine wire, which must always be connected across the ammeter terminals.

A potential transformer is an extremely accurate step-down transformer, normally used with a standard 120-volt voltmeter.

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With respect to the usage, installation or assembly of any products described in this video, Galco Industrial Electronics, Inc., a Michigan corporation, encourages you to follow the requirements and/or guidelines of: i) the Occupational Safety and Health Act of 1970, Public Law 91-596, as amended, and all laws, rules and regulations implemented in relation thereto; ii) the National Electric Code®; and iii) NFPA 70E®. Any installation, assembly or work described in this video should be performed by a qualified licensed electrician.

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