1000 KVA DISTRIBUTION TRANSFORMER TECHNICAL SPECIFICATION, Schedule Minimum Technical Requirements

No. Detail Unit Data
1 Type of transformer Mineral oil immersed hermetically sealed floor mounted transformer as per SABS 780 with top cover welded.
2 Rated power MVA 01
3 Rated Primary Voltage KVA 11
4 Rated Secondary Voltage KVA 0.4
5 Vector Group Dyn11
6 Phase 3
7 Type of cooling ONAN
8 Frequency Hz 50
9 Overall Dimension (see table 3 of SABS 780-1998 Length mm 2000 Width mm 1400 Height mm 2300
10 Winding Material HV Copper LV Copper
11 Impedance Voltage % 5.0
12 Losses at rated voltage and frequency No Load Limit Load Loss Limit W 1900 W 9500
13 Temperature rise at rated voltage and Power of: Winding C 65 Top Oil C 60
14 Operating Temperature C -1 to +40
15 Altitude above see level (max) m 1400
16 Insulating Oil Mineral oil As per SABS 555, IEC 296 BS 148
17 Oil level gauge