Three-phase power transformers ET3S** with the power between 10 and 1600 kVA class „F”

Power transformers are assigned for supplying power electronic devices, and for application in other industrial branches. In standard design, the transformers are adjusted to fastening by means of a base welded into core or screwed angles. If agreed, the transformers may have more tappings. The windings terminals may be placed on one side only, or on both sides of a transformer.
Upon request, the transformers may be assembled in enclosures with the protection degree of IP 23, IP 44 and IP 54 with the possibility to insert supply cables through glands.
Standard enclosures have powder coating - colour RAL 7035.

Download catalog card in PDF

Details:

Design	Power transformers are produced in accordance with requirements of: EN/IEC 60076
Insulation class	F(155^oC) - standard
Climatic class /environmental class	C1/E0 - land design; C2/E1 - maritime design
Ambient temperature	40^oC
Protection degree	IP 00
Protection class	I
Frequency	50/60 Hz
Vector group	Dyn5 - standard
Primary voltage	up to 1000 V
Secondary voltage	up to 1000 V
Terminals	screw terminal blocks or cable lugs or copper bus bars

Technical sketch


Design with power up to 160kVA

Design with power above 160kVA

Dimension table

Technical data of power transformers typ ET3S, insulation class F, voltage ratio 400V//400V**

Type	Power [kVA]	L [mm]	B [mm]	H [mm]	d [mm]	e [mm]	f [mm]	Weight [kg]
ET3S_* - 10	10	360	200	331	310	162	11 x 15	71
ET3S_* - 12,5	12,5	420	200	375	370	158	11 x 15	82
ET3S_* - 15	15	420	210	375	370	168	11 x 15	91
ET3S_* - 16	16	420	210	375	370	168	11 x 15	92
ET3S_* - 20	20	480	294	425	430	190	13 x 18	117
ET3S_* - 22,5	22,5	480	300	425	430	200	13 x 18	129
ET3S_* - 25	25	480	305	425	430	210	13 x 18	139
ET3S_* - 30	30	480	325	425	430	220	13 x 18	154
ET3S_* - 40	40	540	350	485	490	240	13 x 18	195
ET3S_* - 50	50	540	370	485	490	260	13 x 18	230
ET3S_* - 63	63	540	390	485	490	280	13 x 18	265
ET3S_* - 75	75	690	480	555	590	220	13 x 18	300
ET3S_* - 80	80	690	480	555	590	220	13 x 18	305
ET3S_* - 100	100	690	410	555	590	250	13 x 18	365
ET3S_* - 115	115	690	440	555	590	270	13 x 18	415
ET3S_* - 120	120	720	450	650	620	260	17 x 25	425
ET3S_* - 125	125	720	450	650	620	260	17 x 25	430
ET3S_* - 160	160	720	450	650	620	300	17 x 25	550
ET3S_* - 200	200	980	460	870	760	375	Ø17	690
ET3S_* - 225	225	1045	480	905	760	385	Ø17	800
ET3S_* - 250	250	1045	480	940	760	385	Ø17	830
ET3S_* - 315	315	1140	500	1010	760	394	Ø17	1025
ET3S_* - 400	400	1200	525	1065	760	394	Ø17	1225
ET3S_* - 500	500	1245	550	1100	760	416	Ø17	1430
ET3S_* - 630	630	1290	560	1150	760	416	Ø17	1810
ET3S_* - 800	800	1410	600	1285	760	433	Ø17	2175
ET3S_* - 1000	1000	1455	610	1565	760	433	Ø17	2695
ET3S_* - 1250	1250	1620	650	1500	760	473	Ø17	3350
ET3S_* - 1600	1600	1670	700	1580	760	473	Ø17	3830

*) - for transformer design with climatic/environmental class C2/E1 (maritime design W/3 or tropical design T/3) the letter "M" or "G" ought to be added depending on final application
**) - this table was prepared basing on the technical specification for transformer with voltage ratio 400//400 at 50 Hz and operating under normal conditions. For other conditions and data the values may change

Note:

Manufacturer reserves the right to make changes resulting from the continuous development of products offered.

If requested in advance, it is possible to manufacture transformer in other version.