35kv 2000kVA-30mva Oil Immersed Large High Voltage Substation Electric Power Transformer

Product Description

Product Description

Main Product Categories

Why Choose Us
Advanced technology and strict quality control
Comprehensive after-sales service
Strong reputation and wide market recognition in the electrical equipment industry

Obtained certifications such as IEC, CE, CB, and ISO9001.

Power Transformers
Including electronic transformers, oil-immersed transformers, distribution transformers, and dry-type transformers.
Our power transformers feature high efficiency, low losses, and high reliability, widely used in power systems, industrial enterprises, and new energy projects to enhance transmission stability and safety.
High & Low Voltage Complete Sets
Covering switchgear and distribution cabinets.
These products offer compact structure, stable performance, and easy operation, suitable for industrial, commercial, and residential buildings.
Container-Type Substations
Factory-prefabricated units integrating high-voltage switchgear, power transformers, and low-voltage distribution devices.
Advantages: small footprint, fast installation, reliable operation, low maintenance.
Ideal for urban grid upgrades, residential areas, commercial centers, and industrial sites.

Core Advantages

Wide voltage regulation – ±10%  
Reactive power optimization – On-load vacuum tap-changer reduces line losses
Robust & low-loss design – Sturdy frame, low noise, low loss
Customization – Over-temperature protection, remote control, parallel operation (max 4 units)

Certified to international standards – ISO 9001, IEC 60076, CE

Specification

630kVA-31500kVA Three-phase Dual Winding Non Excited Voltage Regulating Power Transformer

rated capacity (KVA)	Voltage combination and tap range			Connection group label	no-load loss KW(9)	load loss KW(9)	no-load current(%)	short circuit impedance
	high pressure(KV)	Tapping range of high voltage	low pressure(KV)
630	35	±2×2.5%±5	0.415 0.4 0.433	DYN11	0.830	7.86	0.65	6.5%
800					0.980	9.40	0.65
1000					1.15	11.5	0.65
1250					1.40	13.9	0.55
1600					1.69	16.6	0.45
2000					2.17	18.3	0.45
2500					2.56	19.6	0.45
3150	35-38.5	±2×2.5%±5	0.415 0.4 0.433		3.04	23.0	0.45	7.0%
4000					3.61	27.3	0.45
5000					4.32	31.3	0.45
6300					5.24	35.0	0.45
8000	35-38.5	±2×2.5%	0.415 0.4 0.433	DYN11	7.20	38.4	0.35	8.0%
10000					8.70	45.3	0.35
12500					10.0	53.8	0.30
16000					12.1	65.8	0.30
20000					14.4	79.5	0.30
25000					17.0	94.0	0.25	10.0%

2000kVA-31500kVA Three-phase Double Winding on load Voltage Regulating Power Transformer

ted capacity (KVA)	Voltage combination and tap range			Connection group label	no-load loss KW(9)	load loss KW(9)	no-load current(%)	short circuit impedance
	high pressure(KV)	Tapping range of high voltage	low pressure(KV)
2000	35	±3×2.5%	0.415 0.4 0.433	DYN11	2.30	19.2	0.50	6.5%
2500					2.72	20.6	0.50
3150	35-38.5				3.23	24.7	0.50	7.0%
4000					3.87	29.1	0.50
5000					4.64	34.2	0.50
6300					5.63	36.7	0.50
8000	35-38.5		0.415 0.4 0.433	DYN11	7.87	40.6	0.40	8.0%
10000					9.28	48.0	0.40
12500					10.9	56.8	0.35
16000					13.1	70.3	0.35
20000					15.5	82.7	0.30
25000					18.3	97.8	0.30	10.0%

Company Profile

I am a factory specializing in the production of all kinds of power equipment

Our factory is equipped with four specialized workshops, each dedicated to different stages of transformer production. This setup allows us to handle everything from core manufacturing to final assembly and testing under one roof. Our production lines are capable of producing transformers with rated capacities ranging from 30kVA to an impressive 25000kVA. Whether it's a small distribution transformer for residential use or a large power transformer for industrial applications, we have the capacity and expertise to meet diverse needs.
From adjusting voltage levels to modifying the physical dimensions of the transformer, our team of engineers works closely with clients to deliver transformers that perfectly fit their specifications.  Our flexible production lines can quickly adapt to different orders, ensuring that each customer receives a product tailored to their exact needs.

After Sales Service

Regular Inspection Protocols: Frequent checks of the oil level and oil insulation strength are imperative. Address any issues by promptly replacing the transformer oil to maintain optimal performance.
Ensuring Stable Operation: Promote stable transformer operation by preventing overloads and short circuits, and adhering to safe operational practices.
Critical Safety Attention Guidelines: Before installation, ensure adequate plant ventilation and fire prevention measures are in place. Follow all technical specifications for accurate and safe installation.

FAQ