Substation Power Transformer

Classification: Power Transformer
Number of Views: 119次
Date of issue: 2026-02-08 10:38:23

Product overview:Substation Transformer Procurement Guide
Substation Transformer Standard&Certificate
1. High efficiency conversion: Modern transformers use high permeability silicon steel sheets and advanced insulation materials, with an energy conversion efficiency of over 98%, significantly reducing transmission losses.
2. High reliability design: Equipped with overload protection, temperature monitoring, and lightning protection functions, it adapts to complex environments and ensures the stable operation of the power grid 24/7.
3. Energy saving and environmental protection: Oil immersed transformers use biodegradable insulating oil (FR3) to reduce environmental pollution risks.
4. Flexible configuration: Supports customized design to meet different voltage levels (such as 66kv, 110kV, 132kv，220kV, 500kV) and capacity requirements (from 10MVA to 400MVA).
5. Intelligent upgrade and integration of Internet of Things (IoT) technology, real-time monitoring of operational data, and remote operation and fault warning.
6. Certification: ISO、CE、IEC、SABS、COC、CSA、UL
7. Delivery capability: Normal 90 days; The shortest delivery cycle is 50 days.
8. Standards: GB, IEC, GOST, EN, NF, ANSI/IEEE (customizable according to customer standards)

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Product advantages

Product parameters

Ordering instructions

Product advantages

-Diversification and Customization:
Hengfengshuai Electric can provide transformers with different voltage levels, cooling methods, and purposes according to market demand, which can comply with European EN, American ANSI/IEEE, Russian GOST, Chinese GB and other standards
-High quality and stability:
Highly reliable operation verified in over 30 countries and regions worldwide; The product has been sold to Romania, Algeria, Uzbekistan, Kazakhstan, Azerbaijan, Belarus, Armenia, the United States, Chile, Brazil, Afghanistan, Pakistan, Sudan, Congo, South Africa, Ecuador, etc.
-Efficient and energy-saving:
Hengfengshuai Electric adopts high-purity copper windings and Baosteel high-performance CRGO four level laminations, with loss levels superior to GB and IEC standards, which can meet the green and energy-saving needs of most global markets.

Product parameters

No.	ITEM	UNIT	Specification
1	Manufacturer & Place of manufacturing		HENGFENGSHUAI ELECTRIC
2	Type		Three-winding，oil immersed power Transformer
3	Standards		IEC 60076, IEC 60214
4	Number of Windings		2/3
5	Winding Configuration(Separate Winding/Auto)		Separate Winding
6	Phase		3
7	Mounting		Outdoor
8	Rated frequency	HZ	50/60
9	Vector group		Yn yn0 D11
10	Cooling		ONAN/ONAF/OFAF/OFWF
11	Rated Power:	MVA	10MVA-400MVA
12	Rated Voltage	KV	50-400kv
12.1	Primary (HV)Winding	kV	50-400kv
12.2	Secondary (MV)Winding	kV	35kv 33kv 20kv 11kv 10kv 6kv
12.3	Secondary (LV)Winding	kV	35kv 33kv 20kv 11kv 10kv 6kv
13	Rated Current (HV/MV/LV)	A
14	Tap Changer		OCTC/OLTC
15	Number of tap positions		7、11、13、17、19
16	Tapping range	%	±7×1.5% ;±8×1.75%；±9×1.25%

Ordering instructions

- Main parameters of transformer (voltage, capacity, loss and other main parameters)
- Transformer operating environment (altitude, temperature, humidity, location, etc.)
- Other customization requirements (tap switch, color, oil pillow, etc.)
- The minimum order quantity is 1 sets
- Normal delivery period of 90 days, worldwide fast delivery