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Legrand Electric - Green T.HE High Efficiency Transformers

Green T.HE - Eco Design - Acceptance Tests - Certification - Classification

Eco Design

Green T.HE high efficiency transformers meet the latest European Commission's Ecodesign Directive, which outlines the parameters transformers must adhere to in order to meet efficiency requirements, defined by the maximum load and no-load losses a transformer can record.

Classification

The classification of a cast resin transformer depends on the value of the no-load losses (Po), as well as the load losses (Pk), characteristics of the machine.

More precisely, Po losses are independent from the load and remain constant for the whole period the transformer is connected to the electric power network. On the other hand, Pk losses only occur when the transformer is connected to a load and are proportional to the square of the load itself.

Certifications & Acceptance Tests

Prior to Legrand cast resin transformers being supplied to the customer, they are individually inspected and must pass the acceptance and, when necessary, type tests, if they are required at the time of order.

At the end of the acceptance tests, a specific inspection certificate is delivered with each transformer.

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Transformers

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Legrand Electric Ltd
Great King Street North
Birmingham
West Midlands
B19 2LF

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