SG(B)10 Type 10kV Series Non-encapsulated Coil Dry Type Transformer

The SG(B)10 series 10kV non-encapsulated coil dry type power transformer is a three-phase unit designed with a NOMEX insulation system (UL approved). It offers safety, reliability, energy efficiency, fire resistance, and easy maintenance. With advanced design and reasonable structure, it excels in partial discharge level, no-load loss, load loss, noise, and high-humidity adaptability. Suitable for high-rise buildings, airports, hospitals, power plants, and more, it ensures stable power supply in demanding environments.

product details

Type & Meaning

1	Three-Phase
2	Dry Type
3	Low-Voltage Foil-Wound Coil
4	Performance Level Code
5	Rated Capacity (kVA)
6	Voltage Class (kV)

Product Features

◇ The carefully designed coil structure and vacuum impregnation process result in low partial discharge for the SG(B)10 transformer, with no cracking or insulation degradation throughout its service life.
◇ The high-voltage side adopts a continuous winding, and the low-voltage side uses foil winding. The whole unit undergoes vacuum impregnation and curing, supported by high-strength ceramic insulators, providing excellent resistance to sudden short-circuit currents.
◇ Flame-retardant, self-extinguishing, non-toxic, and fireproof.
◇ Almost no smoke is generated when the SG(B)10 transformer is burned under high-temperature open flame.
◇ The transformer uses Class H (180°C) insulation, with DuPont NOMEX® paper (Class C) as the main insulation material.
◇ The insulation layer is extremely thin and uniform, enabling strong short-time overload capacity. It can operate at 120% load continuously and 140% load for 3 hours without forced cooling. Thanks to the non-aging and elastic properties of the insulation material, it can immediately carry full load at -50°C.

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Technical Parameters

Technical Parameters of SG(B)10 Series 10kV Non-Encapsulated Coil Dry-Type Transformers

Rated Capacity (kVA)	Voltage Combination and Tap Range			Connection Symbol	No-Load Loss (W)	Load Loss(W) 145℃	No-Load Current (%)	Short-Circuit Impedance (%)	Main Unit Weight (kg)	Overall Dimensions (mm)		Wheelbase (mm)
Rated Capacity (kVA)	High Voltage (KV)	Tap Changer (%)	Low Voltage (kV)	Connection Symbol	No-Load Loss (W)	Load Loss(W) 145℃	No-Load Current (%)	Short-Circuit Impedance (%)	Main Unit Weight (kg)	Length (L)×Width (W)×Height (H) (Without Protective Enclosure)	Length (L)×Width (W)×Height (H) (With Protective Enclosure)	Wheelbase (mm)
100	6 6.3 6.6 10 10.5 11	±5 Or ±2×2.5	0.4	Yyn0 Or Dyn11	400	2160	1.7	4	750	1050×600×1000	1300×1000×1500	550×550
160					560	3100	1.5		950	1120×770×1100	1400×1100×1500	710×660
200					650	3970	1.4		1150	1160×770×1150	1450×1100×1500	710×660
250					750	4670	1.3		13580	1220×770×1200	1500×1150×1500	710×710
315					880	5610	1.1		1600	1260×700×1250	1550×1150×1550	710×710
400					1040	6630	1.1		1750	1320×770×1300	1600×1150×1600	710×710
500					1200	7940	1.0		2050	1360×820×1350	1650×1200×1650	760×710
630					1340	9770	0.9	6	2400	1420×820×1400	1700×1200×1700	760×710
800					1690	11560	0.75		2800	1500×980×1550	1850×1250×1800	920×820
1000					1980	13340	0.65		3200	1550×980×1600	1850×1250×1850	920×820
1250					2380	15640	0.6		3800	1600×980×1650	1900×1250×1900	920×820
1600					2730	18100	0.6		4500	1700×980×1700	2000×1300×2100	920×920
2000					3320	21250	0.5		5600	1800×980×1800	2100×1300×2200	920×920
2500					4000	24730	0.45		6300	1850×980×1900	2100×1300×2300	1020×920

Notes:The overall dimensions and weight data in the table are for reference only; no prior notice will be given for any changes.

Applicable Standards

◇ GB6450-1986 Dry-Type Power Transformers
◇ GB/T10228-1997 Technical Parameters and Requirements for Dry-Type Power Transformers
◇ GB/T17211-1998 Loading Guide for Dry-Type Power Transformers
◇ GB1094.3-2003 Power Transformers - Part 3: Insulation Levels, Dielectric Tests and Air Clearances for External Insulation
◇ JB/T10088-2004 Sound Levels for 6~500kV Power Transformers
◇ JB/T56009-1998 Product Quality Grading for Dry-Type Power Transformers