Application
Joining meters are suitable for measuring active energy in single phase for direct currents upto 100 A; in three phase (three wire or four wire at balanced or unbalanced) networks, for directly connected loads upto 100A; and for operation through CT or CT & PTs.

Specification
DD111 single phase long life watt-hour meter is a kind of induction type meter which measure active energy and reactive energy electric power consumption in rated frequency 50Hz and single phase AC electricity net. The meter has the following features: Novel design, rational structure, high overload, high stability, long life and easy adjustment. Its technique performance are completely conform to the stipulated requirement of National Standard GB/T15283-94 and International Standard IEC521.
Features:
The meter frame adopt top-quality steel plate molding and special disposal with excellent mechanism strength, stable structure and anti-impact. The type meter adopt magnetic thrust bottom bearing, oriented bearing is made of lubricative graphite bush and stainless steel needle. It has following features: Small abrasion, long life, small error change. All kinds of adjustment mechanism adopt no step shifting mechanism. The meter starting and creeping needn’t to be adjusted which is finished by ant-creeping hole of disc and convenient for adjusting by user.