Three Phase Power Transformers

At UTTAM we manufacture Three Phase Power Transformers Stack Core Type – Copper wound, outdoor/ indoor type, Step Down/ Step Up, Completely Self Protected – LV & HV transformers, connection options of Delta & Star Type as per Vector group ref. Dyn11 with rating range of 1000 kVA to 15000 kVA. UTTAM make power transformers have been installed at coal fields, power projects, housing projects, national level business houses, and individual manufacturing units.

Features
General Specification
Standard Technical Data
Fittings
Photo Gallery

»	Available in Stack core
»	Modern manufacturing techniques ensuring quality of product
»	Robust build designed to withstand electric impulses, thermal and dynamic stress
»	Designs through Computer Aided Design (CAD) Software System
»	Trouble free performance
»	Customized design and specification demands

Ratings	Three Phase CRGO - Upto 15000 kVa
Applicable Standards	IS, IEC, ANSI, JIS, DIN, BS Etc.
Cooling	ONAN, ONAF
Insulating Fluid	Mineral Oil to specification
Frequency	50 Hz, 60 Hz
Primary voltage	Upto 33000 V
Secondary Voltage	22000, 11000 , 6600, 3300 V (Other Voltages as required)
Winding material	Copper
Taping range	Off circuit and On load tap changers as per customer specification

Overview

Technical Data as per Normal Losses
Technical Data as per Low Losses (CBIP Standard)

Sheet 1: Technical Data as per Normal Losses


Rated Primary Voltage : 33 KV (CU)				Rated Secondary Voltage : 0.4, 0.415, 0.433 KV
Rating (In KVA)	Taps (%)	Losses (in Watts)		Imp (%)	Temp Rise (ºC)	Dimensions (in mm)			Total Weight (In Kg)	Terminal Arrangement
		(Subject to I S Tolerance)
		No Load	Load			L	B	H		H V	L V
100	Â± 2.5 % & Â± 5%	345	2340	4.50	50/55	1150	1080	1720	850	HV Outdoor	Cable box
315	Â± 2.5 % & Â± 5%	830	4750	4.50	50 / 55	1370	1520	1940	1565	HV Outdoor	Cable box
250	Â± 2.5 % & Â± 5%	730	4000	4.50	50 / 55	1340	1390	1910	1430	HV Outdoor	Cable box
400	Â± 2.5 % & Â± 5%	950	6100	4.50	50 / 55	1390	1570	2030	1840	HV Outdoor	Cable box
500	Â± 2.5 % & Â± 5%	1150	6500	4.50	50 / 55	1470	1540	2060	2185	HV Outdoor	Cable box
630	Â± 2.5 % & Â± 5%	1350	7650	4.50	50 / 55	1500	1730	2150	2590	HV Outdoor	Cable box
750	Â± 2.5 % & Â± 5%	1500	9000	5.0	50 / 55	2120	2190	2250	2935	HV Outdoor	Cable box
1000	Â± 2.5 % & Â± 5%	2000	11300	5.0	50 / 55	2420	2180	2470	3710	HV Outdoor	Cable box
1250	Â± 2.5 % & Â± 5%	2200	13500	5.5	50 / 55	2490	2350	2540	4325	HV Outdoor	Cable box
1500	Â± 2.5 % & Â± 5%	2450	16000	6.25	50 / 55	2610	2820	2800	6245	HV Outdoor	Bus Duct / Cable box
1600	Â± 2.5 % & Â± 5%	2650	16600	6.25	50 / 55	2660	2890	2640	5500	HV Outdoor	Bus Duct / Cable box
2000	Â± 2.5 % & Â± 5%	3100	21500	6.25	50 / 55	2690	3090	2800	6245	HV Outdoor	Bus Duct / Cable box
2500	Â± 2.5 % & Â± 5%	3400	27000	6.25	50 / 55	2740	3200	2990	7090	HV Outdoor	Bus Duct / Cable box
3000	Â± 2.5 % & Â± 5%	4050	29000	6.25	50 / 55	2870	3150	3030	8305	HV Outdoor	Bus Duct / Cable box
3500	Â± 2.5 % & Â± 5%	4200	35000	7.15	50 / 55	2880	3550	3110	8960	HV Outdoor	Bus Duct / Cable box
4000	Â± 2.5 % & Â± 5%	4700	38000	7.15	50 / 55	2970	3690	3150	9950	HV Outdoor	Bus Duct / Cable box
4500	Â± 2.5 % & Â± 5%	4900	43000	7.15	50 / 55	3260	3590	3290	10635	HV Outdoor	Bus Duct / Cable box
5000	Â± 2.5 % & Â± 5%	5200	48000	7.15	50 / 55	3260	3700	3430	11325	HV Outdoor	Bus Duct / Cable box

1. The above quoted electrical performance data are subject to standard tolerances, including losses.
2. Weight, Quantity & Dimension figures are approximate & subject to ±10% tolerance.
3. The above ratings can also be provided in different losses and specifications as per customer requirement
4. Data for higher ratings can be made available at request

Sheet 2: Technical Data as per Low Losses (CBIP Standards)


Rated Primary Voltage : 33 KV (CU) - CBIP					Rated Secondary Voltage : 0.4, 0.415, 0.433 KV
Rating (In KVA)	Taps (%)	Losses (in Watts)		Imp (%)	Temp Rise (ºC)	Dimensions (in mm)			Total Weight (In Kg)	Terminal Arrangement

		No Load	Load			L	B	H		HT	LT
1000	Â± 2.5 % & Â± 5%	1800	12000	5.0	45 / 50				4095	Cable box	Cable box
1600	Â± 2.5 % & Â± 5%	2500	16000	6.25	45 / 50				5705	Cable box	Bus Duct / Cable box
2000	Â± 2.5 % & Â± 5%	3000	21000	6.25	45 / 50				6715	Cable box	Bus Duct / Cable box
2500	Â± 2.5 % & Â± 5%	3400	28000	6.25	45 / 50				7715	Cable box	Bus Duct / Cable box
3000	Â± 2.5 % & Â± 5%	3800	34000	6.25	45 / 50				8365	Cable box	Bus Duct / Cable box

1. The above quoted electrical performance data are subject to standard tolerance, except losses, which are maximum guaranteed without any positive tolerance.
2. Weight, Quantity & Dimension figures are approximate & subject to ±10% tolerance.
3. Data for higher ratings can be made available at request

Standard Fittings
1	Lifting Lugs
2	Skid Base / Roller Arrangement
3	Rating and Diagram Plate
4	Earthing Terminals
5	Primary Bushings
6	Secondary Bushings
7	Conservator
8	Oil level Guage
9	Silica gel Breather
10	Drain / Filter Valves
11	Thermometer Pockets
12	Marshalling Box
13	Inspection Cover
14	Terminal Connectors
15	Buchholz Relay

Optional Fittings
1	Magnetic Oil Level Guage
2	Winding Temperature Indicator
3	Buchholz Relay
4	Pressure Relief Device / Explosion vent
5	Off circuit Tap Switch / On load Tap Changer with RTCC & AVR
6	Siphon Thermo Filter

Three Phase Power Transformer Product Gallery