32 Operating instruction SCK Gas Sampling System OI/SCK-EN Rev. E
Transformer
The gas sampling system can be fitted with a three-phase dry transformer
(see
System identification
on page 10). The three-phase dry transformer is
located in a sheet metal casing with door and base, wiring is by means of
threaded connections. The casing is dip-impregnated to protect against
moisture.
Power 6900.00 VA UL
Primary voltage 3 x 208 V (delta)
Secondary voltage 3 x 400 V (star)
Degree of protection IP 54
Test voltage 4.0 kV
Insulation category T 50/A
Winding separate
Protection class I
Frequency 60 Hz
Switching YNd5
PRI-/SEC connection Terminals with screw connection
Transformer option
Characteristics/
Design features
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