Step Up Down Transformers

Technical specifications
1 type and make of transformer
a) indooroutdoor
b) type of cooling
c) governing specification “sabtron”
indoor
onan
is:2026
2 rating (continuous duty) 630 kva auto
3 winding material electrolytic copper
4 frequency 50hz
5 no. Of phases 3
6 voltage between phaseneutral 0-200-240-280-290 v
7 connections star
8 vector group yao
9 terminal arrangement 13 bushes
10 temperature rise at full load over an ambient of 45 °c
a) in winding
b) in oil
55 °c
50 °c
11 impedence at normal voltage ratio at 75°c
1.5%
12 no load losses at normal voltage and frequency 700 watts
13 full load losses at 75°c 2500 watts
14 weights
a) transformer core
b) windings(copper)
c) transformer oil
d) tank and fitting 410 kgs
160 kgs
430 kgs(500ltrs)
400 kgs
15 total weight 1400 kgs
16 over all dimensions in mm 1300(l) x 1350(w) x 1350(h)
note: all parameters furnished are subject to tolerance of +- 10% as per is