Transformers are intended for instalation in factory-assembled switchgears or closed switchgears. Transformers are intended for transmission of signal to measuring, protection, automation, alarming and controlling devices in electrical networks of alternate current of 60 or 60 Hz frequency.
Climatic version "УХЛ" or "T" location category 2 according to GOST 15150.
Operating mounting - vertical.
There are several variation of secondary terminal to make operation easier:
NOL-35-1; NOL-35-2; NOL-35-3.
Table 1. Technical data
Parameter
Value
Voltage class, kV
20
35
Maximum operating voltage, kV
24
42
Rated voltage of primary winding, V
20000
35000
Rated voltage of secondary winding, V
100
Rated burden at power factor of active-inductive load 0,8, VA, in a given accuracy class:
0,2*** 0,5 1,0 3,0
10 30 100 300
10, (50) 75, (150) 150, (300) 600
Maximum burden out of accuracy class, VA
630
1000
Maximum allowed continuous primary current, A
0,032
0,029
Vector group of transformer
1/1-0
AC current frequency, Hz
50 or 60
Mass, kg, max
77
79
Notes:
** Only for transformers with rated secondary voltage of 100V and single accuracy class. ***Raquired rated burden should be specified in the order. Transformers intended for commercial record of electricial power are manufactured with single accuracy class of 0,2 or 0,5. Burden, given in brackets, ia rated burden in given accuracy class.