Reference current transformers ASTER TT-A series, etc.

Measuring current transformers are designed to transmit a signal of measuring information to measuring, protection, automation, alarm and control devices in AC electrical circuits with a frequency of 50 Hz and a voltage of 0.66 kV.

• Reference transformers - transformers have a built-in bus as the primary winding.
• The design of current transformers is an annular magnetic circuit with a secondary winding.
• They are installed in complete switchgears of the internal installation of electrical substations and are components.
• 2 standard sizes of housings with nominal primary currents – from 5 to 500 A, with a nominal secondary operating current - 5 A.
• Accuracy classes are 0.5 and 0.5S.
• The housing is made of a material that does not support gorenje.
• Convenience of color marking of phases: in the package of group packaging (3 pcs) there are 3 color panels installed under the transparent cover of the terminals: yellow, green, red.
• They are included in the State Register of Measuring Instruments, have a type approval certificate issued by the Federal Agency for Technical Regulation and Metrology.
• The verification interval is 12 years.
• Comply with GOST 7746, GOST 8.217-2003.

Models: TT-A 30/5 0.5, TT-A 40/5 0.5, TT-A 50/5 0.5, TT-A 60/5 0.5, TT-A 75/5 0.5, TT-A 80/5 0.5, TT-A 100/5 0.5, TT-A 120/5 0.5, TT-A 125/5 0.5, TT-A 150/5 0.5, TT-A 200/5 0.5, TT-A 250/5 0.5, TT-A 300/5 0.5, TT-A 400/5 0.5, TT-A 500/5 0.5, TT-A 600/5 0.5, TT-A 50/5 0.5S, TT-A 75/5 0.5S, TT-A 100/5 0.5S, TT-A 150/5 0.5S, TT-A 200/5 0.5S, TT-A 250/5 0.5S, TT-A 300/5 0.5S, TT-A 400/5 0.5S, TT-A 500/5 0.5S, TT-A 600/5 0.5S