Products

　Home > Products> SZ11 Series Transformer Fitted With On-load 　

Scope of Application:

The transformer is fitted with O.L.T.C(on-load tap-changer). And it especially is the same with place which needs steady voltage and variational electrical power system.
Features of production:

Superior performance gets to the international level. It can save energy perfectly. Comparing to GB6451-1999, its no-load loss drops by 30% in average, the load loss drops by 22.4% in average. The production'score of voltage regulater is (±4×2.5%), and has automatica tap-changerlarger than old. It has strongpoint of lower core, temperature and stronger over loading. Firm configuration and good at anti-short circuit performance. The corrugated iron is made of imported steel plate and made with imported equipment, good-looking, workable, durable. Tank and clamps go through acid picking and phosphorization, painting for times after rust frss processing, to make the paint film keep on.

　 SZ11-200～1600/10 power-transformer with O.L.T.C.

Rated Capacity(kVA)		200	250	315	400	500	630	800	1000	1250	1600
connection team mark		Yyn0 or Dyn11
no-load loss (w)		0.33	0.40	0.48	0.57	0.68	0.88	1.05	1.25	1.45	1.85
load loss (w)		2.60	3.05	3.65	4.30	5.15	6.50	8.30	10.85	12.6	15.2
no-load current (%)		0.8	0.7	0.7	0.6	0.6	0.6	0.6	0.6	0.6	0.6
impedance voltage (%)		4	4	4	4	4	4.5	4.5	4.5	4.5	4.5
weight of core and winding assembly (kg)		690	875	950	1080	1285	1445	1915	2245	3325	3935
Oil-weight(kg)		175	205	225	260	275	355	505	557	680	690
weight(kg)		1095	1150	1220	1570	1870	2140	2715	3400	3810	4690
figuration size (mm)	L	1680	1730	1800	1850	1870	1950	2300	2410	2530	2580
	W	670	780	860	950	1050	1060	1070	1150	1210	1280
	H	1420	1470	1570	1620	1670	1750	2090	2200	2260	2350
setting size(mm)	E1	550	550	550	550	660	660	820	820	820	820
	E2	550	550	550	550	660	660	820	820	820	820
	D	19	19	19	19	19	19	19	19	19	19
bushing size(mm)	H1	1155	1175	1265	1305	1355	1395	1550	1655	1725	1875
	h	905	925	1015	1055	1105	1145	1300	1405	1475	1625
	h1	250	250	250	250	250	250	250	250	250	250
	h2	160	160	160	160	260	270	270	330	330	330
	h3	160	160	160	160	160	160	160	270	270	270
	L1	250	250	300	300	300	300	300	300	300	400
	L2	120	120	120	120	160	160	160	200	200	220
	L3	120	120	120	120	160	160	160	200	200	200
	B1	135	140	140	140	160	165	175	190	200	215
	B2	130	140	140	140	145	150	150	150	170	175
low-voltage phase terminal (mm)	picture	（二）	（二）	（三）	（三）	（四）	（四）	（四）	（四）	（四）	（四）
	b					80	80	80	100	100	100
	b1					45	45	45	45	45	45
	d					14.5	14.5	14.5	14.5	14.5	14.5
	δ					15	15	15	18	18	18
low-voltage zero-line terminal (mm)	picture	（二）	（二）	（三）	（三）	（三）	（三）	（三）	（四）	（四）	（四）
	b								80	80	80
	b1								45	45	45
	d								14.5	14.5	14.5
	δ								15	15	15

　Skeleton map of on-load tap-changer