Production introduction

Our company has developed this product by ourselves.As a high performance,high safety,pollution free dry-type transformer,it is suitable for the harsh environments where there is a high fire protection requirement,the great load fluctuation and the site where is of filth and moisture.For example:airport,power plant,metallurgy operation,hospital,high building shopping center,densely inhabited ared,petrochemical industry,nuclear power station and nuclear submarine,elc. 

Normal service conditions

1.A unique ceramic type of insulation structure is adopted in H-class high strength insulation cylinders and high-frequency ceramic cushion blocks are adopted to ensure that no deformation will occur.
2.The high-voltage and low-voltage windings are made of NOMEX wrapped flat copper wires and imported copper foils.And they are sealed with high strength insulation materials.
3.The iron core is made of laminated imported high-quality silicon-steel sheets of high magnetic conductivity with a 45 stepwise all-bias structure.A flexible fastening unit is adopted to fasten the winding and iron core,which ensures a relatively low no-load loss and low noise.
4.Outlet terminals are fixed to the top of winding,taps are in the middle of winding,low-voltage line terminal are in plate-type current-conducting rows for which cold pressure welding is adopted.

Normal service conditions

1)Altitude should not be over 1000m:indoor type
2)Highest ambient temperature should not over:+40oC;Highest daily average should not over temperature:+30oC
3)Highest annual average temperature should not over +20oC,lowest temperature should not below -5oC,We can provide transformer operated in special conditions according to users requirement.

Model designation

Applicable standards

GB6450-1986 Dry-type power transformer
GB/T10228-1997 Technical parameters and requirements for dry-type power transformer
GB/T17211-1998 Guide rules for dry-type power transformer load
GB10237-1998 Insulation level and insulation test for power transformer
GB4208-1993 Casing protection grade(IP code)
JB/10008-1999 6~220KV transformer sound level
JB/T56009-1998 Product quality grading for dry-type power transformer

Performance characteristics

1.Excellent heat dissipation,long thermal life,good overload capacity,without forced air-cooling under a long-term 120% overload and IP45 condition.It can operate for a long time at full load.
2.Extremely high safety fire resistance performance,smoke-free while burning under a temperature as high as 800oC.
3.Extremely high thremal shock resistance capacity.
4.100% water-proof,excellent moisture -proof.
5.Unique winding structure and field strength calculation makes partial discharge impossible.
6.Low loss and significant energy saving effect.Compared with SC9 series of dry-type transformers,the no-load loss falls 10% and load loss falls 5% in average.
7.The insulation material and copper conductor can be dismantled easily and recycled after the service life. Therefore,no pollution will occur.

Notes for placing orders

Transformer type:rated capacity kVA
Number of phases:three-phase∉ single-phase∉
High voltage: KV/Low voltage:KV
Frequency:50HZ∉ 60HZ∉
Tapping range:±4×2.5%∉ ±3×2.5%∉ other∉
Connection group:Yyn0∉ Dyn11∉ other∉
Impedance voltage:4%∉ 6%∉ other∉
Cooling method: ONAN∉ ONAF∉
Protecting grade of outer casing:IP00∉ IP20∉ IP30∉ other∉

Method of incoming and outgoing line:

1.Incoming line to lower part and outgoing line from upper part∉
2.Incoming line to upper part and outgoing line form upper part∉
3.Incoming line to upper part and outgoing line form side part∉
4.other∉
*If customer has no requirement,the color of outer casing is light grey(the standard color of ANDELI),or you sould indicate color code that you want∉

Main technical parameters of SG(B)10-100~2500/10 series of transformers

Rated capacity(KVA)	Voltage combination(KV)			Connecting groupid	No-load lossess (W)	Load-loss (W) (120oC)	Load-loss (W) (75oC)	Short circuit impedance (%)	No-load current (%)	Yawp grade (Db)	IP00(no crust)					IP20(IP23)				High voltage connection end(mm)	Low voltage connectionend (mm)
	High voltage (KV)	Tapping (%)	Low voltage (KV)								Length (mm)	Width (mm)	Height (mm)	Gauge (mm)	Gross weight (kg)	Length (mm)	Width (mm)	Height (mm)	Gross weight (kg)
100	6 6.3 10	±5 ±2×2.5	0.4	Yyn0 or Dyn11	405	2165	1765	4	2.0	40	1000	520	1030	400	720	1300	1000	1400	980	M10	(a)40×4
125					480	2590	2115		1.8	42	1000	520	1050	400	800	1300	1000	1400	1060	M10	(a)40×4
160					560	3100	2530		1.8	42	1050	670	1080	550	880	1500	1100	1400	1100	M10	(a)40×4
200					655	3970	3240		1.6	42	1070	670	1150	550	900	1500	1100	1600	1120	M10	(a)40×1
250					760	4675	3815		1.6	43	1100	670	1200	550	1070	1500	1100	1600	1300	M10	(a)40×6
315					880	5610	4575		1.1	45	1130	780	1220	500×660	1200	1500	1250	1600	1450	M10	(a)40×6
400					1040	6630	5410		1.4	45	1170	780	1290	660	1350	1500	1250	1600	1600	M10	(b)60×6
500					1200	7945	6480		1.4	45	1220	780	1355	660	1570	1700	1250	1800	1800	M10	(b)60×6
630					1400	9265	7560		1.3	45	1300	780	1380	660	1700	1700	1250	1800	1950	M10	(c)80×8
630					1345	9775	7975		1.3	45	1380	780	1250	660	1680	1700	1250	1800	1930	M10	(c)80×8
800					1695	11560	9430		1.3	46	1450	940	1295	680×820	2050	1900	1500	1800	2340	M10	(c)80×8
1000					1985	13345	10885		1.1	46	1470	940	1380	680×820	2310	1900	1500	1800	2600	M10	(d)100×10
1250					2385	15640	12760	6	1.1	47	1570	940	1515	820	2790	1900	1500	2000	3100	M10	(d)100×10
1600					2735	18105	14770		1.1	48	1660	940	1650	820×1070	3500	1900	1500	2000	3830	M10	(e)120×10
2000					3320	21250	17335		1.0	48	1710	1090	1750	820×1070	4200	2100	1650	2000	4600	M10	(d)120×12
2500					4000	24735	20180		1.0	49	1750	1190	1815	820×1070	4725	2100	1650	2000	5200	M10	(d)120×12