150 KVA Sub-Station

Description

Technical specification of 150KVA, 11/0.415 KV, 3- Transformer:
SL No Descriptions
01
3 phase oil immersed, naturally air-cooled transformers acc. To VDE/IEC/DIN/BSS and IEC-76
Standard with 3 HT Bushing and 4 LT Busing arranged on tank top, Oil level indicator, drain
and filling valves, lifting lugs with first filling of oil in transformer
Rated Capacity: 150KVA
Rated Frequency: 50 Hz
Rated voltage –
Primary: 11000V
Secondary: 415/240V
Vector Group: Dyn 11
Rated primary current: 7.87A
Rated secondary current: 209.8A
Type of cooling: ONAN
Type of loading: Distribution
Tap changer: Off load manual type.
No of tap positioning: -7.5%, -5 %, -2.5%, 0, + 2.5%, of rated KV.
Ambient temperature: 40° C
Insulation Class: A
Temperature risein oil: 60° C (Max)
-Coil: 65° C (Max)
Neutral brought Out & loaded up to: 100 %
Max service altitude: 1000 Meters
Installation: Indoor/ Outdoor
No load loss: 480 Watt
Load loss: 2800 W +10%
Impedance: 4.0 % (Approx)
Efficiency at full load (Economy load): 99.56 %

Accessories:
1) Silica gel breather.
2) Dial type thermometer.
3) Horn gap arrester.
4) Conservator.
5) Lifting lugs.
6) Earthling terminals.
7) Name -plate.
Origin:
Core: Nippon, Japan/Kawasaki, USA
Insulating materials: Wiedemann, Switzerland
Copper: BRB Cables, Bangladesh
Transformer Oil: Savita, India
Manufactured by: Trade Engineering/Addex/Bachar/Equivalent.