35KV S9, S9-M series low-loss energy-saving Oil-immersed power transformers

1.Oil-immersed power transformers 2,Low loss, 3,low partial discharge 4,Enviromental Protection 5,Loss impedance

Capability characteristics

1.Good heat dissipating conditions, long heat aging period, extreme over-load capacity, capable of longterm120% overload, without forced wind-cooling under IP45, capable of full-load operation for a long term.2.Extremely high safety and anti-burning feature, lasting burning at a high temperature of 800°C withoutemitting any smog.3.Extremely strong heat resisting capability (be immediately fully loaded at -50°C).4.100% water-proof, excellent water repellency and moisture resistance.5.Unique winding structure and intense field calculation, with scarce partial discharge.6. Low loss with great energy-saving effect, no-load loss down by 10% on average and load loss down by5% compared with SC9 series dry-type transformers.7. Insulation materials and copper wires can be easily recycled after life cycle without environment pollution.

Structural characteristics

1.Unique ceramic-insulating structure, the shape can be kept permanently with adoption of the insulated cylinderand high-frequency ceramic padding block of MORA Company.2.High and low windings are first processed with NOMEX insulation materials, then immersed in specialrecipeH-level insulation materials for times through VPI vacuum pressure boosting equipment, next aftermany times of baking, sealed externally with high-strength insulation materials, and solidified under hightemperature. High-voltage windings adopt continuous structure of high mechanical strength and good heatdissipating conditions.3.The iron core is made of layered imported high-quality highly-conductive magnetic silicon steel sheetsand adopts stepping 45o wholly sliding structure. The coil and iron core are fixed with flexible devices so thatthe transformer is of low-level no-load loss and noise. The surface of the iron core is processed with specialtechnology. The iron core can be property clipped by a pull screw, with the upper and lower clips connected bya pull plate and fixed together with the base and coil, and the coil being fixed by a flexible padding block. Thusthe buffer structure can extenuate the coil violation and reduce the noise.4.The lead terminal is fixed at the upper part of the coil, with the tap at the middle of the coil. The lowvoltageterminal is a conductive plate and adopts cold pressure welding.

Technical parameters of 35KV S9 and S9-M series off-circuit-tap-changing distribution transformers
rated capacity (KVA)	volatfe combination				no-load loss(W)	load loss(W)	no-load current (%)	short-circuit resistance(%)	weight(KG)			track qauge(mm)	overall dimensions(mm)   L*W*H
	high voltage (KV)	high voltage tapping range	low voltage (KV)	connection symbol					tare weight	insulating oil weihght	total weight
50	6;6.3;10;10.5;11	±2*2.5% or   ±5%	0.4	Yyn0 or Dyn11	0.24	1.08	2	6.5	280	280	780	660*660	1135*925*1730
63					0.27	1.4	1.8		325	300	855		1150*935*1835
80					0.32	1.6	1.8		410	350	960		1180*1030*1850
100					0.345	1.71	1.6		460	390	1110		1210*1080*1885
125					0.39	2.02	1.6		530	430	1300		1245*1090*1950
160					0.43	2.4	1.6		630	520	1660		1300*1100*2040
200					0.5	2.8	1.6		770	520	1720		1340*1120*2040
250					0.59	3.34	1.6		940	600	2000		1420*1150*2090
315					0.7	4.02	1.5		980	690	2070		1710*1180*2170
400					0.84	4.86	1.5		1260	700	2430	820*820	1870*1110*2300
500					0.99	5.86	1.4		1600	970	3340		2380*1260*2420
630					1.2	7	1.4		1770	1040	3560		2480*1100*2450
800					1.42	8.4	1.3		2360	1160	4520		2560*1250*2820
1000					1.5	12	1	7	2400	1280	4950		2580*1250*2820
1250					1.8	14	0.9		2650	1350	5580	1070*1070	2600*1300*2820
1600					2.1	17	0.85		3150	1460	6330		2620*1330*3000
2000					2.6	19	0.75		3400	1490	6400		2700*1420*3060
2500					3.1	21	0.75		3700	1520	6700		2800*1520*3140

35KV S9, S9-M series low-loss energy-saving Oil-immersed power transformers