50kVA~1600kVA 3-phase Duplex Winding Non-excited Tap-Changing Distribution Transformer

Rated capacity (kVA)	Voltage Combination and Tap range			Vector Group Symbol	No-load loss (kw)	Load loss (kw)	No-load current (%)	Short-circult Impedance Voltage %
	HV (kV)	HV Tap Range%	LV (kV)
50	35	±5 ±2×2.5	0.4	Dyn11 Yyn0	0.21	0.27/1.21	2.00	6.5
100					0.29	2.12/2.02	1.80
125					0.34	2.50/2.38	1.70
160					0.36	2.97/2.83	1.60
200					0.43	3.50/3.33	1.50
250					0.51	4.16/3.96	1.40
315					0.61	5.01/4.77	1.40
400					0.73	6.05/5.76	1.30
500					0.86	7.28/6.93	1.20
630					1.04	8.28	1.10
800					1.23	9.90	1.00
1000					1.44	12.15	1.00
1250					1.76	14.67	0.90
1600					2.12	17.55	0.80

Note 1: Rated capacity 500KVA and below transformer, the load loss above the oblique line in the table applies to Dyn 11 or Yzn11;the load loss
below the oblique line applies to Yyno. Note 2: According to requirements, the transformer can supply HV tap change 2 2.5 %
Note 3: outline dimension is designed according to requirements.

630kVA~31500kVA 3-phase Duplex Winding Non-excited Tap-Changing Power Transformer

Rated capacity (kVA)	Voltage Combination and Tap range			Vector Group Symbol	No-load loss (kw)	Load loss (kw)	No-load current (%)	Short-circult Impedance Voltage %
	HV (kV)	HV Tap Range%	LV (kV)
630	35	±5 ±2×2.5	3.15 6.3 10.5	Yd11	1.04	8.28	1.10	6.5
800					1.23	9.90	1.00
1000					1.44	12.15	1.00
1250					1.76	14.67	0.90
1600					2.12	17.55	0.80
2000					2.71	19.35	0.70
2500					3.20	20.70	0.60
3150	35-38.5	±5 ±2×2.5	3.15 6.3 10.5		3.80	24.30	0.56	7.0
4000					4.52	28.80	0.56
5000					5.40	33.03	0.48
6300					6.56	36.90	0.48	7.5
8000	35-38.2	±5 ±2×2.5	3.15 3.3 6.3 6.6 10.5 11	Ynd11	9.00	40.50	0.42
10000					10.88	47.70	0.42
12500					12.60	56.70	0.40	8.0
16000					15.20	69.30	0.40
20000					18.00	83.70	0.40
25000					21.28	99.00	0.32
31500					25.28	118.80	0.32