TRANSFORMER (250KVA)
3 Phase oil immersed, naturally air cooled Transformer with 3 HT Bushing and 4 LT Bushings arranged on tank top, conservator, oil level indicator, drain and filling lifting lugs with first filling of oil in Transformer.
Technical Data:
Rated Capacity : 250KVA
Rated Frequency : 50Hz
Rated Voltage
High Voltage : 11000V
Off-load tap changer : ± 2.5% ±5%
Low side Voltage : 415V
HV Insulation level in KV : 12
HV impulse KV peak in KV : 75
Power Frequency KV rms : 28
Vector Group : DYN 11
Type of Cooling : ONAN
Max. ambient temp. in Deg. C : 40
Max. service altitude : 1000 Meters
Temp.rise in winding /Oil in Deg.C : 60/65
Star point brought
Out & loadable up to : 100%
Installation : Indoor/outdoor
No load loss : 880 Watt(Max)
Load loss Impedance Voltage : 4%
Core : Japan
HV Wire(Super Enamel copper) : BRB/Bangladesh
LV Wire (Super Enamel copper) : BRB/Bangladesh
Insulation Materials : Thailand
Transformer Oil : Savita, India.
Load: 100%
Insulation Class : H
OFF Load Tap Changer : ABB, Italy
Accessories:
Silica gel breather
Thermometer
Earthing Block : ¼ inch hole for ECC connection.
Size 305mm x 40mm x 10mm,
for each Transformer 2Nos
Earthing lead : 6 SWG (4x100)ft copper wire
from earthing block to earth electrode,
for each Transformer 2Nos
Standard : IEC 60076.
Standard fittings:
4 flat bi-directional rollers.
2 lifting lugs.
2 earthing points.
1 rating plate (on HV side)
1 temperature gauge
1 thermal protection (Buchholtz Relay).
HV connections : porcelain bushing.
LV connections : porcelain bushing, without cable box.
Transformer Warranty : 03 years services with sphere parts
Technical Support : Life Time
