10kv Three Phase Oil Immersed on Load Voltage Regulating Transformer

• Customization: Available
• Application: Power, Electronic, Instrument, Lighting
• Phase: Three
• Model NO.: IBK-SZ11
• Cooling Method: Oil-immersed Type Transformer
• Winding Type: Two-winding Transformer
• Certification: ISO9001-2000, ISO9001, CCC
• Usage: Power Transformer, Distribution Transformer
• Frequency Characteristics: Power Frequency
• Shape of Core: EE
• Brand: Chenghe
• Primary Voltage: 6kv, 10kv
• Rated Frequency: 50/60Hz
• Connection Group: Dyn11/Yyn0
• Transport Package: Wooden
• Specification: 200kVA-2500kVA
• Trademark: Chenghe
• Origin: Wenzhou China

Product Description

Oil immersed power transformer
1. Standard: GB1094-1996; JB/T10088-2004; GB/T6451-2008; EQV IEC6 0076
2. Voltage Grade: 6KV, 10KV, 11KV,13.8KV,15KV,20KV,22KV
3. Voltage Regulation Mode: No-load tap changing or On-load tap changing
4. Tapping Range: ±5%, ±2×2.5%, ±4×2.5% or others
5. Frequency: 50Hz; 60Hz
6. Phase: three phase
7. Connection Sign: Dyn5,Yyn0, Dyn11 or others
8. Short Circuit Impedance: Standard impedance (For details see technical data sheet)

Technical Data of SZ11 Series on load Regulation Three Phase Oil Immersed 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	15		Dyn11  Yyn0 Dyn5	0.34	3.06	1.5	4	540	270	1110	1400	740	1190	550	520
250	13.8			0.4	3.6	1.4		640	290	1270	1420	790	1210	650	550
315	13.2			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		0.81	7.65	1.1	4.5	1220	460	2280	1810	1200	1310	850	660
800	6.3	0.69		0.96	9.36	1		1500	500	2740	1860	1090	1500	850	660
1000	6			1.15	10.98	1		1610	520	3060	1910	1260	1570	850	660
1250				1.36	13.05	0.9		1880	700	3710	1960	1280	1740	850	660
1600				1.64	15.57	0.8		2290	780	4350	2330	1800	1910	850	700
2000				1.96	21.26	0.8		2560	900	4950	2580	1900	1950	820	820
2500				2.31	24.69	0.7		3170	1010	6020	2580	1940	2250	1070	1070
(Note): (Tapping range of high voltage) ±5%; ±2×2.5%.

Performance characteristics
a, oil-immersed transformer low-voltage winding in addition to small-capacity copper conductor, are generally used in copper foil winding pumping cylindrical structure; high-voltage winding using multi-layer cylindrical structure, so that the winding of the an-turns distribution balance, leakage of magnetism is small, high mechanical strength, and resistance to short-circuit capability. 
b. The core and windings each adopt fastening measures, and the fastening parts of the body, such as high and low-voltage leads, are equipped with self-locking anti-loosening nuts, and the structure of non-hanging centre is adopted, which is able to withstand the vibration of transportation. 
c, coil and core using vacuum drying, transformer oil using vacuum oil filtration and oil injection process, so that the transformer internal moisture to a minimum. 
d, the oil tank adopts corrugated sheet, it has breathing function to compensate for the volume change of oil due to temperature change, so the product has no oil storage cabinet, obviously reducing the height of the transformer. 
e, due to the corrugated sheet instead of the oil storage cabinet, make transformer oil and the outside world isolation, so that effectively prevent the oxygen, water into the insulating properties of the degradation caused by. 
f, according to the above five performance points, to ensure that the oil-immersed transformer in normal operation within the oil does not need to change, greatly reducing the maintenance cost of the transformer, while extending the service life of the transformer.