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General Purpose Dry Type 600 Volts and Below

Transformers for High Harmonic Loads; DIT; HMT

Class 7400 / Refer to Catalog 7400CT0301

Drive Isolation Transformers

Special design considerations must be made for the requirements of both adjustable frequency and dc motor drive power isolation. Allowance for high surge, harmonic and offset currents are taken into account in the design of Square D® drive isolation transformers. Drive isolation transformers are not shielded isolation transformers, but act to lessen transient generation into the supply power and act as a buffer for SCR current surges. cULus Listed.

 

kVA	Catalog No.	$ Price	Full Capacity Taps	Degree C Temp. Rise	Weight (lbs) b	Enclosure a b
Three-Phase 60 Hz; Class B (IEEE Standard 597-1983)
460 V Delta Primary 460Y/265 V Secondary 60 Hz
7.5	7T145HDIT	4462.00	2–5%1 + 1–	150	180	17D
11	11T145HDIT	5298.00	2–5%1 + 1–	150	180	17D
15	15T145HDIT	5464.00	2–5%1 + 1–	150	190	17D
20	20T145HDIT	6550.00	2–5%1 + 1–	150	210	17D
27	27T145HDIT	6720.00	2–5%1 + 1–	150	250	17D
34	34T145HDIT	7392.00	2–5%1 + 1–	150	295	18D
40	40T145HDIT	8404.00	2–5%1 + 1–	150	350	18D
51	51T145HDIT	9826.00	2–5%1 + 1–	150	445	20D
63	63T145HDIT	10692.00	2–5%1 + 1–	150	465	20D
75	75T145HDIT	12498.00	2–5%1 + 1–	150	550	20D
93	93T145HDIT	16020.00	2–5%1 + 1–	150	845	22D
118	118T145HDIT	17844.00	2–5%1 + 1–	150	920	22D
145	145T145HDIT	20008.00	2–5%1 + 1–	150	1025	22D
175	175T145HDIT	23092.00	2–5%1 + 1–	150	1120	25D
220	220T145HDIT	28224.00	2–5%1 + 1–	150	1200	25D
275	275T145HDIT	37716.00	2–5%1 + 1–	150	1500	25D
330	330T145HDIT	39688.00	2–5%1 + 1–	150	1390	25D
440	440T145HDIT	48650.00	2–5%1 + 1–	150	2700	30D
550	550T145HDIT	60444.00	2–5%1 + 1–	150	3800	30D
460 V Delta Primary 230Y/132 V Secondary 60 Hz
7.5	7T144HDIT	4462.00	2–5%1 + 1–	150	180	17D
11	11T144HDIT	5298.00	2–5%1 + 1–	150	180	17D
15	15T144HDIT	5464.00	2–5%1 + 1–	150	190	17D
20	20T144HDIT	6550.00	2–5%1 + 1–	150	210	17D
27	27T144HDIT	6720.00	2–5%1 + 1–	150	250	17D
34	34T144HDIT	7392.00	2–5%1 + 1–	150	295	18D
40	40T144HDIT	8404.00	2–5%1 + 1–	150	350	18D
51	51T144HDIT	9826.00	2–5%1 + 1–	150	445	20D
63	63T144HDIT	10692.00	2–5%1 + 1–	150	465	20D
75	75T144HDIT	12498.00	2–5%1 + 1–	150	550	20D
93	93T144HDIT	16020.00	2–5%1 + 1–	150	845