Single-phase Autotransformers EA1

Autotransformer is a special variation of transformer in which primary and secondary windings are connected and therefore there is no galvanic separation between circuits. Autotransformers are used to connect networks with different voltage levels. They are also used in starting systems and in systems whereever a lack of electrical separation between primary and secondary circuits is allowed. The undoubted advantage of the autotransformer is that compared to the transformer of the same outgoing power they are smaller, lighter and cheaper.

Product for:

Details:

Design	Single-phase autotransformers EA1 are produced in accordance with requirements of standard: EN/IEC 61558-2-1
Insulation class	B(130^oC) - standard up to 5 kVA; F(155^oC) - standard above 5 kVA
Climatic class/ Environmental class	C1/E0 - land desing; C2/E1 - maritime design
Ambient temperature	40^oC
Protection degree	IP 00
Protection class	I
Frequency	50/60 Hz
Primary voltage	up to 1000 V
Secondary voltage	up to 1000 V
Fastening	by means of angles

Technical sketch


Standard design

Dimension table

Technical data of single-phase autotransformers type EA1

Type of autotransformer	Core power factor/ Outgoing power [kVA]	Example data	L [mm]	B [mm]	H [mm]	d [mm]	e [mm]	f [mm]	Weight [kg]
EA1	0,05/0,8	200V/235V	78	63	69	56	47,5	4,8 x 9	1,1
EA1	0,25/0,5	400V/230-220V	105	112	103	80,5	86	5,8 x 12	4,2
EA1	1/4	380V/500V	150	155	138	122	134	7 x 15	12,6
EA1	2,6/10,5	230/210-190-170-150V	178	155	291	128	126	11 x 15	19,6
EA1	5,2/10,2	500V/380V	240	180	320	200	140	11 x 15	38