Grounded voltage transformers ZNOL-35 (ЗНОЛ-35) for outdoor mountingGrounded voltage transformers ZNOL-35 (ЗНОЛ-35) for outside mounting
Description
The transformers are intended for powering electrical measuring devices, protection, signaling and control circuits of alternating current electrical systems with the frequency 50 or 60 Hz. The transformer is manufactured in climatic versions "УХЛ" (moderate cold) and "T" (tropical) according to the standard requirements of GOST 15150 location category 1. Ambient air temperature is from plus 50 °C to minus 60 °C, ambient air humidity is 100 % at 25 °C for УХЛ1 version and from minus 10 °C to plus 65 °C with air humidity 100 % at 35 °C for T1 version. The leakage path III to GOST 9920-89. The transformer has no protection from resonance and switching overvoltage in the network.
The transformer is patented Patent certificates № 2048, 2049, 2679, 5282, 6266, 6268, 18015, Patent Publications № 2087967, 2087968, 2087970, 2107350, 2110862, 2193252. Patent for the industrial unit № 47969.
Table 1. Technical data
Parameter
|
Normal value
|
Voltage class, kV
|
35
|
27
|
Maximum operating voltage, kV
|
40,5
|
30
|
Rated voltage of the primary winding, V
|
35000/√3
|
27500
|
Rated voltage of the main secondary winding, V
|
100/√3
|
100
|
Rated voltage of the additional secondary winding, V
|
100/3
|
127
|
Rated burden of the main secondary winding , VA in accuracy class*: 0,2** 0,5 1
|
10**; 15; 20** 60 120
|
15 60 120
|
Rated burden of the additional secondary winding in accuracy class 3 , VA
|
100***
|
Maximum burden out of accuracy class, VA
|
600
|
Rated frequency, Hz
|
50 or 60
|
Vector group of transformer
|
1/1/1-0-0
|
Test voltage, kV: of industrial frequency during one minute of full lighting impulse of cut lighting impulse
|
95 190 220
|
80 170 200
|
Mass, kg
|
90 max
|
General view of transformer (drawing)
|