Transformers

Three-Phase Transformer Circuit Data
60 Hz - Rigid Conduit - Copper THWN Conductors - 30 C
XFMR KVA	Runs	75 Wire	Volts L-L	Conduit Size In. 3-Each	Conduit With Full Size Neutral	Ins. Eq. Ground Size	Conduit With Neutral & Eq. Ground	Grounding Electrode Cond.	FLA 3ph 100%	Design Amps 125%	Maximum Distance 1% Drop .85 P.F.	% Imp.	S/C Amps With Infinite Primary	S/C Amps With 50% Motor Load	S/C Amps With 100% Motor Load	NEC Fuse Amps 125%	NEC C.B. Amps 125%
3	1	14	480	1/2	1/2	14	1/2	8	3.6	4.5	287	8.0	45	52	70	6	5
	1	14	240	1/2	1/2	14	1/2	8	7.2	9.0	72	8.0	90	105	141	10	10
	1	14	208	1/2	1/2	14	1/2	8	8.3	10.4	54	8.0	104	121	162	15	15
6	1	14	480	1/2	1/2	14	1/2	8	7.2	9.0	144	3.5	206	221	257	10	10
	1	12	240	1/2	1/2	12	1/2	8	14.4	18.0	55	3.5	412	441	513	20	20
	1	10	208	1/2	1/2	10	1/2	8	16.7	20.8	68	3.5	476	509	592	25	25
9	1	14	480	1/2	1/2	14	1/2	8	10.8	13.5	96	3.0	361	383	437	15	15
	1	10	240	1/2	1/2	10	1/2	8	21.7	27.1	61	3.0	722	765	873	30	30
	1	8	208	1/2	3/4	10	3/4	8	25.0	31.2	69	3.0	833	883	1,008	35	35
15	1	10	480	1/2

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