Variable Auto Transformer

Engaged as a manufacturer & supplier we are providing our customers with Variable Auto Transformer. Manufactured using single layer winding on a core that is made up of high-grade cold rolled grain oriented steel, these products are developed with perfection. Rugged in construction, these products are provided to our customers in different specifications to suit their demands.

Some of the salients features of "COSMO" Autotransformers are.
» Continuously Varable output voltage
» Silver plated track of carbon brush
» High grade carbon brush
» Easy replacement of carbon brush
» Extremely low magnetising current (about 25 of rated load)
» Mechanically rugged design
» Almost no maintenance required
» Capacities upto 40 amps in air cooled version
» conforming to IS:5142-1969


Rating: 4 Amp.To 1200 Amp
Capacity: 4 to 1200 Amp
Operating Voltage: 240 Volt Ac in Single Phase system 415 Volt Ac in Three Phase system
Output Voltage (Variable): 0 Volt-270 Volt in Single Phase System
System : 0 Volt-to 470 Volt in Three phase
Temperature: 0-45 C
No load losses: Not more then 3%
Load losses: 5to7% at full Load
Pure copper: 99.9%