Description / kV Class

Unit

11kV

22kV

33kV

Applicable Standard

IEC / IEEE / ANSI / IS

Highest System Voltage

kV

12

24

36

One Min. PF Voltage

kV

28

50

70

Lightning Impulse Voltage

kVp

75

125

170

Rated Frequency

Hz

50 / 60

Ambient Temperature

° C

-30 to + 50

Seismic Level

g

0.3

Voltage Factor

—

1.2 Cont. & 1.5-30 Sec.

Rated Secondary Voltage

—

110, 110 / √3 , 115, 115 / √3, 120, 120 / √3

Creepage Distance

mm

300

600

900

Accuracy Class

—

0.2 / 0.5 / 1.0 / 3.0 / 3P / 6P

Maximum No. of Windings

No.

3

3

3

Separate Secondary Box

—

Yes (on request)