Transformer Capacity Required For Three-Phase Submersible Motors - Grundfos SP Instrucciones De Instalación Y Funcionamiento

10.3 Transformer capacity required for three-phase submersible motors

3-phase motor Minimum total KVA
[hp]
1.5
2
3
5
7.5
10
15
20
25
30
40
50
60
75
100
125
150
200
* Pump motor KVA requirements only, and does not include allowances for other loads.
required* 2 transformers Open
3
4
5
7.5
10
15
20
25
30
40
50
60
75
90
120
150
175
230
Minimum KVA rating for each transformer
Delta or Wye
2
2
3
5
7.5
10
15
15
20
25
30
35
40
50
65
85
100
130
3 transformers Delta or
Wye
1
1.5
2
3
5
5
7.5
10
10
15
20
20
25
30
40
50
60
75
25