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TD series supply transformer series

The functions of the supply transformer include power transmission, voltage change and insulation isolation. As a kind of main soft magnetic and electromagnetic elements, it is widely applied in power transmission and power electronics technology.

TD series supply transformer is applicable for the circuit with AC 50-60 Hz and voltage below 1140 V as the isolated power. The series of products have excellent performance, safety, reliability and other features, and have been widely applied in frequency conversion, PV, wind power, medical device and other fields.

Technical parameters
External dimensions of the product
Features

Model description

Technical parameters

Model	Capacity（KVA）	Primary voltage（V）	Secondary voltage（V）	Insulation class
TDA 300-780	300	780/720	220/36	A
TDA 300-1350	300	1350/1140	220/36	A
TDA 480-1140	480	1140	220/127	A
TDA 480-1350	480	1350/1140	220/36	A
TDA 750-780	750	780/660	210/36	A
TDA 850-720	850	720/690	220/36/127	A
TDA 900-1140	900	1140	220/36	A

Model	L × W × H (mm)	Total weight (kg)
TDA 300-780	116×105×135	5
TDA 300-1350	116×105×135	5
TDA 480-1140	135×120×145	7
TDA 480-1350	135×120×145	7
TDA 750-780	155×140×170	11
TDA 850-720	155×140×170	12
TDA 900-1140	155×175×170	18

1. The iron core of the supply transformer is E-shaped, which is of shell structure (coil wrapping iron core).

2. The supply transformer has two windings, a primary winding and a secondary winding. Therefore, there are four leading-out terminals. In order to prevent AC hum and other disturbance, a shielding layer is often added between the primary and the secondary windings, and the shielded layer is the grounding terminal. Therefore, there are 4 wiring terminals of the supply transformer at least.

3. The silicon steel sheet of E-shaped supply transformer is inserted alternatively, no air gap is reserved between E and I plates, and the whole iron core fits together perfectly.