Part Ⅰ: 35Kv Power Transformer Overview

The 35kV oil-immersed power transformer has the advantages of low loss, low noise and high efficiency, which can achieve good energy-saving effects and reduce pollution.

The transformer is isolated from the air to prevent and slow down the deterioration of oil and insulation aging so as to enhance operational reliability, and maintain normal operation without maintenance.

35kV 3-phase 2-winding Power Transformer
Product Attributes
Model No.
Application	Power
Coil	Core-type Transformer
Frequency	50/60Hz
Phase	Three
Cooling Method	Oil-immersed Type Transformer
Capacity range:	630kVA-63000kVA
Operating Ambient Temperature	+40 °C--30 °C
Operating Altitude	≤1000m
Operating Max Wind Speed	≤35m/s
Earthquake acceleration	horizontal acceleration ≤0.3g
Earthquake acceleration	vertica I acceleration ≤0.15g
Standard	IEC 60076-1:2000, IEC 60076-2:1993, IEC 60076-3:2000, IEC 60076-5:2006, IEC 60137:2003; ANSI, IEEE, AS, etc.
Supply Ability & Additional Information
Packaging	Seaworthy Packing
Transportation	Ocean
Supply Ability	High
Payment Type	L/C, T/T
Delivery Time	60 Days
Place of Origin	China
Port	China Sea Port
Incoterm	FOB, CFR, CIF
Packaging & Delivery
Selling Units:	Set/Sets
Package Type:	Seaworthy Packing

Part Ⅱ: Product Features

1. Low Loss

① Magnetic flux leakage calculation and effective measures are adopted to reduce stray loss, effectively prevent local overheating and reduce the temperature rise of winding hot spots.

② Reasonable choice of coil wire to reduce winding eddy current losses, stray losses and other additional losses.

2. High Resistance to Short Circuit

① Dynamic analysis method is used for the analytical calculation of short-circuit mechanical forces.

② The low-voltage adopts self-adhesive transposition wire, which effectively increases the short-circuit resistance.

3. Low Noise

① Select high-quality core material, choose the appropriate magnetic flux density and self-oscillation frequency of the core.

② Adopt high precision jogging line with stepping shear and automatic stacking function to reduce burr of silicon steel sheet.

4. Low Temperature Rise

Perform oil flow distribution calculation, adopt reasonable oil flow distribution structure, and reduce the hot spot temperature rise and average temperature rise of winding.

Part Ⅲ: Product Main Parameter

SZ9(M)-1000~31500/35 Three-phase Oil-immersed Transformer with OLTC
Rated Capacity (kVA)	Rated Voltage and Tapping Range			Vector Group	No Load Losses (kW)	On Load Losses kW	Impedance Voltage %	No Load Current kW(9)	Weight (kg)				Outline Dimension (mm)	Trail Distance (mm)
	HV	Tapping Range %	LV						Body	Oil	Gross	Transport	L×W×H
	HV	Tapping Range %	LV						Body	Oil	Gross	Transport	L×W×H
1000	30	±3×2.5	6.3, 6.6, 10.5, 11	Yd11	1.7	13.0	6.5	1.1	1930	1240	4600	3650	2850×1930×2430	1070×1070
1250					2.0	15.0		1.1	2200	1320	4950	3800	2900×1950×2450	1070×1070
1600					2.4	18.0		1	2550	1400	5300	3980	2950×1980×2490	1070×1070
2000					2.9	20.0		1	2775	1560	5965	4925	3010×2065×2540	1070×1070
2500					3.4	21.8		1	3300	1750	6950	5683	3035×2265×2610	1070×1070
3150	35 38.5				4.1	26.0	7	0.9	3770	1970	7900	6075	3160×2095×2640	1070×1070
4000					4.9	30.7		0.9	4520	2260	9110	7090	3295×2325×2890	1070×1070
5000					5.8	36.0		0.68	5620	2980	11825	9500	3900×3000×3050	1070×1475
6300				YNd11	7.0	39.0	7.5	0.68	6700	3340	13400	10350	3920×3020×3090	1070×1475
8000					9.84	44.0		0.6	8620	3670	16070	12500	4400×3200×3160	1475×1475
10000					11.6	51.0		0.6	9900	4000	18500	15400	4450×3520×3500	1475×1475
12500					13.68	60.5	8	0.56	11340	4365	21590	17800	4500×3600×3700	1475×1475
16000					16.46	74.0		0.54	14300	5400	22800	20100	4950×4100×3750	1475×1475
20000					19.46	87.14		0.54	15000	6100	30700	22800	5000×3930×3840	1475×1475
25000					23.4	104		0.5	19750	9300	38400	33800	5650×4150×3900	1475×1475
31500					27.5	123.1		0.45	23500	11500	45300	38800	5880×4300×3950	2040×1475

SZ10(M)-1000~31500/35 Three-phase Oil-immersed Transformer with OLTC
Rated Capacity (kVA)	Rated Voltage and Tapping Range			Vector Group	No Load Losses (kW)	On Load Losses kW	Impedance Voltage %	No Load Current kW(9)	Weight (kg)				Outline Dimension (mm)	Trail Distance (mm)
	HV	Tapping Range %	LV						Body	Oil	Gross	Transport	L×W×H
	HV	Tapping Range %	LV						Body	Oil	Gross	Transport	L×W×H
1000	35	±3×2.5	6.3, 6.6, 10.5, 11	Yd11	1.5	12.3	6.5	1.1	2030	1290	4785	3795	2905×1970×2480	1070×1070
1250					1.8	14.2		1.1	2310	1370	5150	3950	2960×1990×2500	1070×1070
1600					2.2	17.0		1	2680	1460	5510	4130	3010×2020×2540	1070×1070
2000					2.6	19.2		1	2910	1620	6195	5120	3070×2105×2590	1070×1070
2500					3.1	20.6		1	3465	1820	7230	5910	3095×2310×2660	1070×1070
3150	35 38.5				3.7	24.6	7	0.9	3960	2050	8215	6310	3225×2140×2700	1070×1070
4000					4.4	29.0		0.9	4750	2350	9475	7375	3355×2375×2950	1070×1070
5000					5.2	34.0		0.8	5690	3010	11925	9600	3950×3050×3100	1070×1475
6300					6.3	36.6		0.8	6750	3370	13500	10400	3970×3070×3140	1070×1475
8000				YNd11	8.8	40.4	7.5	0.7	8670	3700	16170	12600	4450×3250×3210	1475×1475
10000					10.4	47.8	7.5	0.7	9970	4030	18600	15500	4500×3570×3550	1475×1475
12500					12.3	56.6	8	0.6	11410	4395	21690	17900	4550×3650×3750	1475×1475
16000					13.5	70.0		0.6	14370	5430	22900	20200	5000×4150×3800	1475×1475
20000					17.8	83.0		0.5	15090	6130	30800	22900	5050×3980×3890	1475×1475
25000					20.8	98.5		0.5	19820	9350	38500	33900	5700×4200×3950	1475×1475
31500					24.5	117.0		0.45	23370	11530	45400	38900	5700×4350×4000	2040×1475

SZ11(M)-1000~31500/35 Three-phase Oil-immersed Transformer with OLTC
Rated Capacity (kVA)	Rated Voltage and Tapping Range			Vector Group	No Load Losses (kW)	On Load Losses kW	Impedance Voltage %	No Load Current kW(9)	Weight (kg)				Outline Dimension (mm)	Trail Distance (mm)
	HV	Tapping Range %	LV						Body	Oil	Gross	Transport	L×W×H
	HV	Tapping Range %	LV						Body	Oil	Gross	Transport	L×W×H
1000	35	±3×2.5	6.3, 6.6, 10.5, 11	Yd11	1.3	11.1	6.5	1.1	2125	1365	5060	4015	2965×2010×2530	1070×1070
1250					1.6	14.2		1.1	2420	1450	5445	4180	3015×2030×2550	1070×1070
1600					1.9	17.0		1	2805	1540	5830	4378	3070×2060×2590	1070×1070
2000					2.3	19.2		1	3050	1720	6560	5410	3130×2150×2640	1070×1070
2500					2.7	20.6		1	3630	1925	7645	6250	3160×2355×2715	1070×1070
3150	35 38.5				3.2	24.6	7	0.9	4150	2165	8690	6680	2865×2180×2750	1070×1070
4000					3.9	29.0		0.9	4970	2490	10020	7810	3425×2420×3010	1070×1070
5000					4.6	34.0		0.8	5720	3030	11975	9650	3960×3080×3130	1070×1475
6300					5.5	36.6		0.8	6780	3400	13560	10460	4000×3100×3170	1070×1475
8000				YNd11	7.7	40.4	7.5	0.7	8720	3730	16230	12630	4470×3100×3170	1475×1475
10000					9.1	47.8	7.5	0.7	9990	4050	18640	15540	4520×3590×3570	1475×1475
12500					10.8	56.6	8	0.6	11430	4415	21710	17920	4570×3070×3770	1475×1475
16000					12	70.0		0.6	14390	5450	22910	20220	5030×4170×3840	1475×1475
20000					16	83.0		0.5	15110	6150	30840	22940	5070×4000×3910	1475×1475
25000					18	98.0		0.5	19840	9370	38540	33940	5720×4220×3970	1475×1475
31500					21	117.0		0.45	23390	11550	45440	38910	5930×4370×4030	2040×1475

S9(M)-1000~31500/35 Three-phase Oil-immersed Transformer with NVTC
Rated Capacity (kVA)	Rated Voltage and Tapping Range			Vector Group	No Load Losses (kW)	On Load Losses kW	Impedance Voltage %	No Load Current kW(9)	Weight (kg)				Outline Dimension (mm)	Trail Distance (mm)
	HV	Tapping Range %	LV						Body	Oil	Gross	Transport	L×W×H
	HV	Tapping Range %	LV						Body	Oil	Gross	Transport	L×W×H
1000	35	±5	3.15 6.3 10.5	Yd11	1.48	12.2	6.5	1	1880	970	3780	3080	2400×1620×2490	820×820
1250					1.8	14.7		0.9	2070	1010	4080	3320	2420×1720×2470	820×820
1600					2.13	17.6		0.85	2480	1090	4660	3830	2465×1830×2520	820×820
2000					2.61	19.4		0.75	2830	1200	5300	4330	2545×1680×2600	1070×1070
2500					3.15	20.7		0.75	3410	1330	6170	5060	2610×2050×2670	1070×1070
3150	35 38.5				3.87	24.3	7	0.7	3900	1520	7100	5710	2700×2090×2690	1070×1070
4000					4.64	28.8	7	0.7	4730	1750	6620	7020	2770×2300×2800	1070×1070
5000					5.49	33.0		0.6	5600	1950	9950	7860	2865×2425×2870	1070×1070
6300					6.6	36.9		0.6	6860	2320	11580	9460	3090×2285×3150	1475×1475
8000		±2×2.5	3.15 3.3 6.3 6.6 10.5 11	YNd11	9	40.5	7.5	0.55	8090	2500	14120	11500	3230×3050×3280	1475×1475
10000					10.6	47.7	7.5	0.55	9860	2850	16480	13500	3380×3150×3370	1475×1475
12500					12.6	56.7	8	0.5	10930	3250	18340	14890	3550×3190×3430	1475×1475
16000					15.3	69.3		0.5	13450	3750	22410	18350	3910×3350×3580	1475×1475
20000					18.1	83.7		0.5	14200	5700	28800	23500	3950×3400×3620	1475×1475
25000					21.5	99.0		0.5	19650	7130	35600	28000	4950×4550×3850	1475×1475
31500					25.7	118.8		0.4	26000	12200	42100	36000	5020×4700×3950	2040×1475

S10(M)-1000~31500/35 Three-phase Oil-immersed Transformer with NVTC
Rated Capacity (kVA)	Rated Voltage and Tapping Range			Vector Group	No Load Losses (kW)	On Load Losses kW	Impedance Voltage %	No Load Current kW(9)	Weight (kg)				Outline Dimension (mm)	Trail Distance (mm)
	HV	Tapping Range %	LV						Body	Oil	Gross	Transport	L×W×H
	HV	Tapping Range %	LV						Body	Oil	Gross	Transport	L×W×H
1000	35	±5	3.15 6.3 10.5	Yd11	1.32	11.48	6.5	1	1980	1020	3970	3235	2440×1645×2540	820×820
1250					1.57	13.66		0.9	2180	1060	4280	3490	2470×1750×2550	820×820
1600					1.9	16.58		0.85	2610	1145	4890	4020	2515×1870×2550	820×820
2000					232	18.28		0.75	2980	1260	5565	4550	2600×1920×2650	1070×1070
2500					280	19.55		0.75	3580	1400	6480	5320	2670×2090×2750	1070×1070
3150	35 38.5				344	22.95	7	0.7	4095	1590	7455	5995	2755×2130×2750	1070×1070
4000					4.12	27.20	7	0.7	4970	1840	9050	7370	2830×2350×2855	1070×1070
5000					4.88	31.20	7.5	0.6	5880	2050	10450	8255	2830×2480×2930	1070×1070
6300					5.84	34.85		0.6	7200	2450	12160	9935	3150×2330×3220	1475×1475
8000		±2×2.5	3.15 3.3 6.3 6.6 10.5 11	YNd11	8	3825		0.55	8500	2530	14830	12075	3295×3110×3345	1475×1476
10000					9.44	45.05		0.55	10350	3000	17310	14180	3450×3210×3400	1475×1477
12500					11.2	53.55	8	0.5	11500	3400	19260	15635	3620×3255×3500	1475×1478
16000					13.6	65.5		0.5	14130	3940	23530	30240	3980×3420×3650	1475×1475
20000					16.08	79 05		0.5	14910	5990	28800	23500	4030×3470×3690	1475×1475
25000					19.12	93.5		0.5	20650	7490	35600	28000	5050×4640×3930	1475×1475
31500					22.8	112.2		0.4	27300	12810	42100	36000	5120×4800×4030	2040×1475

S11(M)-1000~31500/35 Three-phase Oil-immersed Transformer with NVTC
Rated Capacity (kVA)	Rated Voltage and Tapping Range			Vector Group	No Load Losses (kW)	On Load Losses kW	Impedance Voltage %	No Load Current kW(9)	Weight (kg)				Outline Dimension (mm)	Trail Distance (mm)
	HV	Tapping Range %	LV						Body	Oil	Gross	Transport	L×W×H
	HV	Tapping Range %	LV						Body	Oil	Gross	Transport	L×W×H
1000	35	±5	3.15 6.3 10.5	Yd11	1.16	11.48	6.5	1	2070	1070	4160	3390	2500×1690×2590	1070×1070
1250					1.37	13.86		0.9	2280	1110	4490	3650	2520×1790×2590	1070×1070
1600					1.66	16.58		0.85	2730	1200	5130	4220	2560×1910×2620	1070×1070
2000					2.03	18, 28		0.75	3120	1320	5830	4770	2650×1955×2700	1070×1070
2500					2.45	19, 55		0.75	3750	1465	6790	5560	2720×2135×2780	1070×1070
3150	35 38.5				3.01	22.95	7	0.7	4290	1680	7810	6280	2800×2180×2800	1070×1070
4000					3.61	27.2	7	0.7	5200	1930	9490	7720	2880×2390×2910	1070×1070
5000					4.27	31.2	7.5	0.6	6160	2150	10950	8650	2980×2520×2990	1070×1070
6300					5.11	34.85		0.6	7550	2550	12740	10410	3215×23B0×3275	1475×1475
8000		±2×2.5	3.15 3.3 6.3 6.6 10.5 11	YNd11	7.00	38.25		0.55	8900	2750	15540	12650	3360×3170×3280	1475×1476
10000					8.26	45.05		0.55	10850	3140	18130	14850	3515×3280×3500	1475×1477
12500					9.80	53.55	8	0.5	12020	3580	20180	16380	3690×3320×3570	1475×1478
16000					11.90	65.45		0.5	14795	4125	24650	20185	4065×3490×3730	1475×1475
20000					14.07	79.05		0.5	15620	6270	31680	25850	4110×3550×3770	1475×1475
25000					16.73	93.50		0.5	21615	7840	39160	30800	5150×4730×4000	1475×1475
31500					19.95	112.2		0.4	28600	13420	46310	39600	5220×4890×4110	2040×1475

Part Ⅳ: Structural Diagram

Part Ⅴ: Quality Warranty

Part Ⅵ: Application

Part Ⅶ: Packaging and Transportation

Before packing the transformer, make a packing plan, and carry out packing according to the design scheme and plan when packing. The packing list corresponds to the materials in the box one to one. Pack the box in two copies, one in the packing box and the other nailed outside the packing box. Important parts and spare parts are packed in wooden boxes, and the box numbers are set in order.

The transformer is transported in bare installation, and the fuel tank is emptied before transport. It is tied to a transport vehicle by a wire rope, and the transport speed does not exceed 15km/h.

The terminal is guaranteed to have large-scale transformer lifting equipment, and the lashing is firm after loading to ensure safe and reliable transportation.

Part Ⅷ: Factory Tour

Part Ⅸ: Service Guarantee

1. To provide all technical information and drawings as per contract promptly. Everhydro is oblidged to invite client, if neccessory, to attend technical design review.

2. To carry out spot technical service as per client' s schedule, offer guideness for installation and commis- sioning according to technical information and drawings.

3. For relevant auxiliary equipment procured by customers. EverHydro will provide related technical information to meet requirement of equipment interface.

4. To execute stipulations in MOU or agreement signed by seller and buyer strictly.

5. To train staff from client for equipment installation commissioning, application, maintenance as stipulated in the contract.

6. To reinforce pre-sales, mid-sales, after-sales service to carry out "24-hour service", "service in advance", "overall process service", "lifelong service"in our manufacturing, installation, commissioning and maintance.

7. To meet spare parts requirements by customers at any time.

Part Ⅹ: FAQ

Q1: What is your MOQ?

A1: One set.

Q2: Is OEM/ODM available?

A2: Yes. All transformer can be customized by your requirements.

Q3: How long is your delivery time?

A3: It depends on your order quantity and generally it takes about 30~40days.

Q4: How long is the warranty?

A4: Within one year from sale date.

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