1.5. THREE-PHASE DOUBLE-WINDING OIL-IMMERSED TRANSFORMERS of 110 kV


Type

Rated capacity, kVA Rated winding voltage, kV Type, range and
number of voltage
regulation steps
Winding
scheme and
connection
group


Cooling

HV LV


ТДН-10000/110-У1


10000


115

6,6


OLTC in neutral of

HV

±16%, ±9 steps


Ynd11


ONAF







11,0
10,5; 16,5; 34,5
ТДН-16000/110-У1 16000 115 6,3; 6,6; 11,0; 34,5
ТДН-25000/110-У1 25000 115 11,0


ТРДН-25000/110-У1


25000

115

6,3-6,3; 10,5-10,5;

10,5-6,3


OLTC in neutral of HV

±16%, ±9 steps

Ynd11d11


ONAF

121 10,5-10,5
ТРДН-32000/110-У1 32000 115 6,3-6,3

Ynd11d11

ТДН-40000/110-У1 40000 115 10,5; 36,5 Ynd11


ТРДН-40000/110-У1


40000


115

6,3-6,3; 6,6-6,6; 6,9-6,9;

10,5-10,5; 10,5-6,3; 11,0-

11,0


Ynd11d11

ТРДН-63000/110-У1 63000 115

6,3-6,3; 6,6-6,6; 10,5-

10,5; 10,5-6,3; 11,0-11,0

Ynd11d11
ТРДЦН-63000/110-У1 63000 115

6,3-6,3; 6,6-6,6; 10,5-

10,5; 10,5-6,3; 11,0-11,0

Ynd11d11 OFAF


ТРДН-80000/110-У1


80000

115

6,3-6,3; 6,6-6,6; 10,5-

10,5; 10,5-6,3; 11,0-11,0


Ynd11d11


ONAF

121 10,5-10,5


ТРДЦН-80000/110-У1


80000


115

6,3-6,3; 6,6-6,6; 10,5-

10,5; 10,5-6,3; 11,0-11,0

Ynd11d11


OFAF

22,0-22,0 YNyn0yn0
121 10,5-10,5

OLTC in neutral of

HV ±14,7%, ±9 steps

Ynd11d11