Copper and iron weight or content in Transformer

TRANSFORMER 11/0.415 KV

Sr	TR KVA	Un tanking Mass (core+ winding), KG	Oil Mass, KG	Total mass (oil core+ coil +tank +c conservator), KG	Iron Content	Copper Content	Insulation Waste
1	25	110	66	274	85.25	13.75	11
2	63	240	148	508	186.00	30.00	24
3	100	255	189	605	197.63	31.88	25.5
4	200	350	290	800	271.25	43.75	35
5	300	1760	1100	3560	1364	220	176
6	500	860	550	2105	666.5	107.5	86
7	800	1000	650	2500	775	125	100
8	1000	1280	700	3200	992	160	128
9	1400	3010	1100	4700	2332.75	376.25	301
10	2000	2600	950	4900	2015	325	260
11	2500	3700	1430	7320	2867.5	462.5	370
12	3500	4000	2200	10000	3100	500	400

Transformer 33/0.4/11 KV

Sr	TR KVA	Un tanking Mass (core+ winding), KG	Oil Mass, KG	Total mass (oil core+ coil +tank +c conservator), KG	Iron Content	Copper Content	Insulation Waste
1	100	220	165	550	170.5	27.5	22
2	200	460	247	945	356.5	57.5	46
3	500	760	500	1900	589.00	95.00	76
4	1000	1340	750	3350	1038.5	167.5	134
5	2000	2320	1450	5800	1798	290	232
6	2500	2640	1750	6600	2046	330	264
7	10000	10000	4050	20000	7750	1250	1000
8	25000	29760	9750	49683	23064	3720	2976

Note: the above data is based for empirical formula so reader should verify name plate or manufacturer.

Generic formula:

Sr.   Type of Metal                                                 % of mass ( metal content)

1.       Total mass of ferrous material (iron)                             77.5 % of untanking mass

2.       Total Mass of Copper(Coil)                                            12.5 % of untanking mass

3.       Total Mass of insulation                                                 10 % of the untanking mass