
The current transformers for internal billing purposes from the multict EASK series are suited for use in conjunction with an MID energy consumption meter. The current transformer’s calibration period is indefinite.
Transformers approved by the Physikalisch Technische Bundesanstalt (PTB) Braunschweig (module B) can be identified by a type and design number arranged in a stylized “Z.”
Conformity
The conformity of transformers is documented by a yellow conformity mark and a declaration of conformity enclosed with the product.
Quality assurance
The quality assurance system must be recognized by the PTB in accordance with module D of the conformity evaluation procedure, so that billing transformers can be used directly for billing purposes. For other European countries, these design-approved current transformers are approved for billing purposes.
Billing current transformers for current ranges from 25 A to 3,000 A in accuracy classes 0.2s, 0.2, 0.5s, 0.5.
Application
Establishing a measuring point, which is consulted for billing energy consumers.