1250kVA Three Phase Full Sealed Oil Type Onan Power Distribution Transformer

Product Description

1250KVA Three Phase Full Sealed Oil Type ONAN Power Distribution Transformer

Improved from S9 series product, S11 series product reduce the no-load loss by 30%,no-load electric current by 70~85%, average temperature by 10K,nosie level by 2~4db, and double the products service life. even under 20% overloads, it can also work for long period of time.

Transformers service condition

The height above sea level is below 1000m;
Ambient temperature:
Highest temperature 40ºC,highest daily average temperature 30ºC
Highest annual average temperature 20ºC,lowest outdoor temperature -25ºC

Technical Datas

Rated capacity (KVA)	Voltage group(KV)	Vector group	Impedance voltage(%)	(KW) Loss		No-load current(%)
Rated capacity (KVA)	Voltage group(KV)	Vector group	Impedance voltage(%)	No-load	Load	No-load current(%)
10	(HV) 11 10.5 10 6.3 6 (LV) 0.4 0.69	Yyno Dyn11	4	0.065	0.4	3.5
20				0.08	0.52	3.0
30				0.1	0.63/0.6	2.3
50				0.13	0.91/0.87	2.0
63				0.15	1.09/1.04	1.9
80				0.18	1.31/1.25	1.9
100				0.2	1.58/1.5	1.8
125				0.24	1.89/1.8	1.7
160				0.28	2.31/2.2	1.6
200				0.34	2.73/2.6	1.5
250				0.4	3.2/3.05	1.4
315				0.48	3.83/3.65	1.4
400				0.57	4.52/4.3	1.3
500				0.68	5.41/5.15	1.2
630			4.5	0.81	6.2	1.1
800				0.96	7.5	1.0
1000				1.15	10.3	1.0
1250				1.36	12.0	0.9
1600				1.64	14.5	0.8
2000				1.96	19.8	0.8
2500				2.31	23.0	0.7

Note: High-pressure tap range: ± 5% or ± 2 × 2.5%; Frequency: 50HZ

Outline Drawing

1250kVA Three Phase Full Sealed Oil Type Onan Power Distribution Transformer