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CGS’s instrument transformers are resin insulated, with electrical and mechanical features, that grant the highest reliability, accuracy and safety. They have compact dimensions and the primary terminals comply with the most widespread standardization principles. The achievable rated voltages, currents, burdens and accuracies practically cover all requirements, either of public utilities and of panel manufacturers.
At the end of the casting process, thanks to a laboratory on production line, accuracy and insulation test are carried out on each transformer. In particular, by means of a Faraday’s cage with high attenuation, the individual partial discharge measurement is carried out.

 
 
Current Transformers
 
Voltage Transformers
   
CT with primary winding or with primary bar
ring CT
For indoor or for outdoor
Insulation up to 41,5 kV
Primary current up to 50000 A
Secondary current 5 A or 1 A
Short time thermal current up to 100 KA/1s
Accuracy class up to Cl. 0,1


Single pole VT for phase to earth connection
Double poles VT for phase to phase connection
For indoor or for outdoor
Highest system voltage up to 52 kV
Primary voltage up to 45000:V3 V or 33000 V
Secondary voltage 100 V, 110 V, 100:V3 V, 110:V3 V
Accuracy class up to Cl. 0,1


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Via Ercolano, 25
20900 Monza (MB)
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T. +39 039 394141
F. +39 039 39414202

E. sales@it-cgs.it
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