Description

1	Design Standard	IEC 60076
2	Type	Three Phase Wound Core/Stack Core
3	Installation	Outdoor, Tropical, High Rainfall & Humidity
4	Winding Material	High Conductivity Copper
5	Core Type and Material	CRGO Silicon Steel
6	Nominal Voltage	HT = 11000 V t0 33000 V & LT = 415 V
7	Rated Frequency	50 Hz
8	BIL (Basic Insulation Level)	HT Winding = 75 KV, LT Winding = 2.5 KV
9	Power Frequency Withstand Voltage	HT Winding = 28 KV, LT Winding = 2.5 KV
10	Vector Group	DYn 11
11	Cooling Method	ONAN
12	Maximum Temperature Rise at Full Load & at Rated tap position: Winding Insulating Oil	Shall not exceed 65° C (Resistance Method) Shall not exceed 60° C (Thermometer Method)
13	Tap Changer	Off Load type; +1 x 2.5%, 0, -3 x 2.5% of rated voltage
14	Bushing: Type & Material Connectors Quantity Mounting Position	Outdoor type, Porcelain as per IEC 60137 Bolted ring type HT = 3, LT = 4 HT – On the tank cover, LT – On the side of the tank
15	Tank: Design Ground Provision Lifting Facilities Conservator Breather Painting	Bolted type complete with cover and gasket with bolted ring type connector Provided with Facilities for lifting the core and coil Provided Silica Gel Breather Light Gray, ANSI Color # 70
16	Insulating Oil	New, Unused, Mineral oil as per IEC 60296 & BS 148

Rating Power (KVA)	No- Load Loss (W)	No- Load Loss At 75° C (Tolarance ± 10%)	Impedance At 75° C (Tolarance ± 10%)	No Load Current 10(A)	Noise Level (dB)	Voltage Regulation %		% Efficiencies PF = 1		% Efficiencies PF = 0.8		Dimension (mm)			Oil (Ltr.)	Weight (Kg)
Rating Power (KVA)	No- Load Loss (W)	No- Load Loss At 75° C (Tolarance ± 10%)	Impedance At 75° C (Tolarance ± 10%)	No Load Current 10(A)	Noise Level (dB)	PF= 1	PF= 0.8	Full Load	% Load	Full Load	% Load	L	W	H	Oil (Ltr.)	Weight (Kg)
50	140	950	4	1.2	45	1.71	3.44	98.20	98.80	97.80	95.85	800	400	950	150	500
100	240	1625	4	1.2	45	1.41	3.34	98.66	98.25	98.20	98.71	900	650	1000	200	800
150	388	1800	4	1.2	46	1.5	3.25	98.25	98.70	98.20	98.00	98.00	700	1100	270	1000
200	430	2800	4	1.2	47	1.08	3.17	98.87	99.19	98.50	98.89	1100	900	1150	300	1050
250	520	3180	4	1.2	48	1.06	3.40	99.10	99.30	98.75	99.20	1100	950	1200	330	1400
315	737	3500	4	1.5	49	1.04	3.33	98.50	98.40	98.20	98.40	1150	1000	1250	350	1520
500	798	4200	6	1.5	50	.94	4.28	98.60	98.80	98.25	98.59	1200	1050	1300	550	2000
630	888	4800	6	1.5	52	0.96	4.30	98.72	98.96	98.50	98.78	1250	1250	1080	630	2250
750	999	5102	6	1.5	53	0.98	4.32	98.96	99.20	98.70	98.88	1300	1100	1450	700	2600
10000	1198	8200	6	1.5	54	0.99	4.30	99.10	98.39	98.88	98.18	1400	1200	1550	810	3600
1250	1368	11000	6	1.5	65	1.00	4.30	99.12	99.30	98.76	99.12	1500	1300	1700	1010	4300
1600	1665	12400	6	1.5	60	1.00	4.32	99.29	99.76	98.80	99.20	1600	1350	1850	1100	5000
2000	2230	15350	6	1.5	68	1.00	4.34	99.30	99.82	98.94	99.23	1700	1700	1400	1200	6200
2500	2785	18850	6	1.5	72	1.00	4.36	99.32	99.89	98.32	99.32	1800	1800	1450	1350	7500

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