10kv SZ11 Series on Load Distribution Transformer

• Customization: Available
• Phase: Three
• Tap Changer: on-Laod
• Standards: GB1094-1996; Jb/T10088-2004; GB/T6451-2008; Eqv I
• Colour: Gray
• Connection Sign: Yyn0, Dyn11, Dyn5 or Others
• Tapping Range: ± 5%, ± 2× 2.5%, ± 4&T
• Voltage Grade: 6kv, 10kv, 11kv, 13.8kv, 15kv
• Voltage Regukation Mode: off Circuit Tap Changing or on Load Tap Changing
• Frequency: 50Hz; 60Hz
• Type: Voltage Transformer
• HS Code: 8504220000
• Production Capacity: 5000000 kVA/Year

Product Description

1) 22 years' manufacturing experience with three subsidiaries
2) Top 3 in China
3) Guarantee 30 years
4) Won tenders abroad
New type of S11, S11-M series three phased oil-immersed dis transformer, it is the renew products for saving energy
Low losses, energy saving
Core is in round form, multi-stage, and entire tilted three stages seaming and lapping structure
High and low voltage coils are winding with oxygen free copper coil. All high voltage coils are made with several layered bucket structure.
Oil-Immersed Transformer
Main characteristics of oil-immersed transformer:
1. High short-circuit resisting ability and fine mechanical performance
2. Low power consumption, low partial-discharge and low noise
3. No leakage, free of core and winding body lifting and no maintenance

Main technical points of oil-immersed transformer:
1. Scientific computing method:
Adopt advanced computing software for electromagnetic heat and mechanical power to calculate the distribution of electromagnetic field and magnetic leakage, choose insulation tolerance and analyze wave process; The software is used for simulation design of plane and three-dimensiona dynamic model, which guarantees the products a reliable performance and a rational structure.

2. Rational array of structure:
According to the computing result, choose rational insulation structure, wire specification and magnetic flux density.
Adopt magnetic screen for oil tank. Calculate the natural vibration frequency of drawplate and iron core. Adopt multistage step lapped joint fully-oblique structure...
Reduce on-load power consumption and noise. Increase the short circuit resisting ability by adopting round bar and cardboard sleeve.
Reduce the partial-discharge by applying rounding process on the fringes of insulation parts and metal parts and metal parts inside the transformer.
2. Advanced processing methods:
Cut the iron core automatically, so the precision is high and the burr is very small.
Adopt non-overlapping upper yoke processing.
Apply double-H setting glue on the surface, Coil the wire vertically, and a numerical control tension device is needed.
Set-assemble is adopted for the body of transformer. Integral preassemble is adopted for the wire lead.
Full automatic control gas-kerosene drying process is adopted for the body of transformer. Preassemble is adopted for general assembly.

4. Perfect quality assurance system: Control the quality of products according to the ISO19001 quality standards.

5. Systematic data management: ERP&PDM data management programs are adopted during the whole process from sale to leaving factory
3.4. Perfect quality assurance system: Control the quality of products according to the ISO19001 quality standards.

5. Systematic data management: ERP&PDM data management programs are adopted during the whole process from sale to leaving factory.

Technical Data of 10kV SZ11 Series on load Regulation Distribution Transformer
Rated Capacity	Voltage Group(kV)		Connection Method	Loss (kW)		No-load current	Impedance Voltage	Weight (kg)			(L)(mm)	(W)	(H)	Gauge
(kVA)	HV	LV		No-load	Load	%	%	Machine	Oil	Gross	Dimension			Vertical	Horizontal
200				0.34	3.06	1.5	4	540	270	1110	1400	740	1190	550	520
250				0.4	3.6	1.4		640	290	1270	1420	790	1210	650	550
315				0.48	4.32	1.4		730	320	1500	1540	850	1240	650	550
400	11			0.57	5.22	1.3		940	370	1780	1590	940	1250	650	550
500	10.5			0.68	6.21	1.2		1040	370	1920	1650	1000	1350	750	600
630	10	0.4	Yyn0	0.81	7.65	1.1	4.5	1220	460	2280	1810	1200	1310	850	660
800	6.3	0.69	Dyn11	0.96	9.36	1		1500	500	2740	1860	1090	1500	850	660
1000	6			1.15	11	1		1610	520	3060	1910	1260	1570	850	660
1250				1.36	13.1	0.9		1880	700	3710	1960	1280	1740	850	660
1600				1.64	15.6	0.8		2290	780	4350	2330	1800	1910	850	700
2000				1.96	21.3	0.8		2560	900	4950	2580	1900	1950	820	820
2500				2.31	24.7	0.7		3170	1010	6020	2580	1940	2250	1070	1070