Ungrounded voltage transformer NOL-35 III for outside mounting

Ungrounded voltage transformer NOL-35 III for outside mounting

Незаземляемые трансформаторы напряжения НОЛ-35 IIIDescription

Transformers are intended for mounting in opened switchgears. Transformers are intended  for transmittion of signal of measuring instruments , protective instruments, as well as automation, alerting and control instruments in AC current networks with frequency 50 Hz.

Transformers are manufactured in climatic version "УХЛ" (moderate cold), location category 1 according to GOST 15150.

Mounting in vertical position.

Table 1. Technical data.

Parameter Value
Voltage class, kV
35
Maximum operating voltage, kV 40,5
Rated voltage of primary winding, V
35000
Rated voltage of secondary winding, V 100

Rated burden at power factor of active-inductive load cos φ = 0,8, VA, in a given accuracy class:

0,2
0,5
1,0
3,0

 


10,50
75, 150
150, 300
600

Maximum burden out of accuracy class, VA 1000
Maximum allowed continuous primary current, A
0,029
Short-circuit voltage at a burden of 75 VA, % 0,38
Vector group of transformer 1/1-0
AC current frequency, Hz 50
Creepage distance, no less than, cm 116
Mass, kg
106

General view of transformer (drawing)