12~36kV  Three-phase oil immersed transformer
NINGBO TIANAN (GROUP) CO., LTD.
1. General
(1) Application:
    >> 12, 24,36KV class transformers are widely used in power transmission and distribution stations,
          industry plants, Generation Setup Unit (GSU).
    >> They have the characteristic of high efficiency, low loss and maintenance free.       
(2) Type and Rating
     **Capacity range :50-50000KVA.
     **Secondary voltage: 415V ,400V etc.
     **Frequency :50Hz ,60Hz.
     **Type: Single phase ,three phase.
     **No-load tap changer and on-load tap changer.
     **ONAN and ONAF.
     **Set-up and set-down type.
(3) Standard:  IEC60076-1, IEC60076-2, IEC60076-5, IEC60317, ANSI, IEEE, AS, etc.
2. Conditions of service
(1) Altitude:  Up to 1,000m above sea level.
(2) Ambient temperature:
      **Max: +40oC.
      **Average (daily, Max.): +30oC.
      **Average (yearly, Max.): +20oC.
      **Min: -45oC.
(3) Environment:  Outdoor.
(4) Special conditions:
      It may be consulted between manufacturer and customer.
Technical Data of Typical Products

Capacity KVA	Voltage and tap range			Connection	No-load loss (kW)	Load loss (KW)	NO-load current (%)	Impedance (%)	Dimensions (mm) LxWxH
	HV (kV)	MV (kV)	LV (kV)
50	35	± 5	0.4	Dyn11 Yyn0	0.21	1.27/1.21	2.00	6.5	1100x845x1715
100					0.29	2.12/2.02	1.80		1190x915x1780
125					0.34	2.50/2.38	1.70		1220x1040x1780
160					0.36	2.97/2.83	1.60		1240x1070x1810
200					0.43	3.50/3.33	1.50		1380x780x1875
250					0.51	4.16/3.96	1.40		1540x880x1820
315					0.61	5.01/4.77	1.40		1440x800x1975
400					0.73	6.05/5.76	1.30		1660x825x1995
500					0.86	7.28/6.93	1.20		1710x865x2030
630					1.04	8.28	1.10		1630x1235x2070
800					1.23	9.90	1.00		1655x1415x2120
1000					1.44	12.15	1.00		1860x1435x2220
1250					1.76	14.67	0.90		1890x1640x2260
1600					2.12	17.55	0.80		2050x1720x2390
630			3.15 6.3 10.5	Yd11	1.04	8.28	1.10		1630x1235x2070
800					1.23	9.90	1.00		1655x1415x2120
1000					1.44	12.15	1.00		1860x1435x2220
1250					1.76	14.67	0.90		1890x1640x2260
1600					2.12	17.55	0.80		2050x1720x2390
2000					2.72	19.35	0.70		2400x1900x2410
2500					3.20	20.70	0.60		2500x1930x2700
3150	35~ 38.5	± 5	3.15 6.3 10.5		3.80	24.30	0.56	7.0	2600x2100x2800
4000					4.52	28.80	0.56		2830 x2350x2855
5000					5.40	33.03	0.48		2930x2480x2930
6300					6.56	36.90	0.48	7.5	3150x2330x3220
8000		± 2 x 2.5	3.15 3.3 6.3 6.6 10.5 11	YNd11	9.00	40.50	0.42		3295x3110x3345
10000					10.88	47.70	0.42		3450x3210x3440
12500					12.60	56.70	0.40	8.0	3620x3255x3500
16000					15.20	69.30	0.40		3980x3420x3650
20000					18.00	83.70	0.40		4030x3470x3690
25000					21.28	99.00	0.32		5050x4640x3930
31500					25.28	118.8	0.32		5120x4800x4030

Three phase on-load tap changer power transformer

Type	Voltage compose and Tapping range (kV)		Connection	No-load Loss (kW)	Load loss (kW)	No- load current (I%)	Impedance voltage (%)	Transport weight (t)	Gross weight      (t)	Dimensions L×W×H (mm)
	HV	LV
SZ9-2000/35	35 ±3×2.5%	6.3 10.5	Yd11	2.88	18.7	1.00	6.5	4.93	5.97	3010×2070×2540
SZ9-2500/35				3.40	21.7	1.00	6.5	5.68	6.95	3040×2270×2610
SZ9-3150/35				4.04	26.0	0.90	7.0	6.08	7.90	3160×2300×2640
SZ9-4000/35	35 38.5 ±3×2.5%	6.3 10.5		4.84	30.7	0.90	7.0	7.10	9.11	3300×2330×2890
SZ9-5000/35				5.80	36.0	0.85	7.0	8.47	10.86	3350×2520×3000
SZ9-6300/35				7.04	38.7	0.85	7.5	9.87	12.30	3680×2650×3050
SZ9-8000/35				9.84	42.8	0.75	7.5	12.55	15.30	4190×2930×3280
SZ9-10000/35	35 38.5 ±3×2.5%	6.3 6.6 10.5 11	Ynd11	11.6	50.6	0.75	7.5	14.70	17.86	4620×3160×3400
SZ9-12500/35				13.7	60.0	0.70	8.0	17.35	20.05	4740×3200×3540
SZ9-16000/35				16.0	73.0	0.70	8.0	19.45	23.74	4810×3360×3790
SZ9-20000/35				18.9	88.3	0.70	8.0	27.50	34.95	4880×3540×4150
SZ9-25000/35				22.4	104.4	0.65	8.0	32.51	40.22	4920×3920×4200
SZ9-31500/35				26.6	125.3	0.65	8.0	37.73	45.53	5010×4270×4460