High Load Continuous Endurance for Seasonal Peak Electric Power Demand Oil Immersed Transformer

Product Description

Specification

S11/13/20/22 Oil-immersed power transformer
Capacity (KVA)	Voltage Ratio			Vector Group	LWA	No Load Loss (W)	Load Loss At 75 (W)	No Load Current (%)	Impedance 75 (%)
	High Voltage (KV)	HV Tapping %	Low Voltage (KV)
100	6	±2×2.5% or +3/-1×2.5%	0.4	Dyn11	52	75	1500	1	4
125					54	85	1800	0.9
160	10					100	2200	0.7
200					56	120	2600	0.7
250	10.5					140	3050	0.7
315					58	170	3650	0.7
400	33					200	4300	0.5
500					60	240	5150	0.5
630						320	6200	0.3	4.5
800					62	380	7500	0.3
1000						450	10300	0.3
1250					65	530	12000	0.2
1600						630	14500	0.2
2000					67	750	17400	0.2	5
2500						900	20200	0.2

Product Description

OIL IMMERSED TRANSFORMER

Oil immersed transformers use insulating oil as the cooling medium, and the iron core and winding are immersed in a sealed oil tank to dissipate heat through oil circulation.

Its voltage level covers a wide range, from distribution to ultra-high voltage, with strong overload capacity and stable insulation performance.

The corrugated fuel tank design enhances heat dissipation efficiency and is equipped with protective devices such as gas relays, ensuring high safety.

Suitable for scenarios such as power grid substations and industrial distribution, especially in high-capacity and high-voltage scenarios, it has significant advantages and is one of the core pieces of equipment for power transmission and distribution.

Functional Advantages

EFFICIENT HEAT DISSIPATION AND STABLE OPERATION

Using insulating oil as the cooling medium, the heat generated by the iron core and winding is quickly removed through natural convection or forced circulation. The structural design of corrugated fuel tanks, radiators, and other components significantly increases the heat dissipation area, ensuring stable operating temperature even under high load conditions and guaranteeing long-term reliable operation.

LARGE CAPACITY AND HIGH VOLTAGE ADAPTATION

Compared to dry-type transformers, oil immersed transformers can carry larger capacities and higher voltage levels, and are capable of handling power distribution from 10kV to 1000kV ultra-high voltage transmission. Its insulation oil and oil paper composite insulation system can effectively withstand high electric field strength and is suitable for high-power electrical scenarios such as substations and large industrial equipment.

MULTIPLE PROTECTION AND SAFETY RELIABILITY

equipped with gas relays, pressure relief valves, and other protective devices, which can monitor internal faults in real time and quickly trigger alarms or cut off power in case of abnormalities. The fully sealed structure effectively isolates air and moisture, delays insulation aging, reduces maintenance frequency, extends service life, and ensures the safety and stability of the power system.

Core Applications

UTILITY SUBSTATIONS & GRID TRANSMISSION/DISTRIBUTION

Widely used as a substation power transformer for voltage step-down/step-up and stable energy transfer in primary and secondary substations.

INDUSTRIAL DISTRIBUTION & HEAVY LOADS

Suitable for steel, mining, chemical, and manufacturing facilities needing high reliability, strong thermal margin, and continuous operation for critical equipment.

URBAN INFRASTRUCTURE & PUBLIC UTILITIES

Applied in city power networks, transportation hubs, and public facilities for medium- to high-voltage supply and downstream distribution.

RENEWABLE ENERGY GRID CONNECTION & POWER DELIVERY

Used in selected PV/wind integration and power delivery segments where voltage class, capacity, and project standards favor oil-immersed designs.

HIGH-DUTY, CONTINUOUS-RUN POWER SYSTEMS

Ideal for installations that prioritize long-term stability, overload tolerance, and robust insulation performance across seasons and load cycles.

Company Profile

FAQ

Q1. Can I customize different models?
A:Yes.
 
Q2. Can I use my own logo or design on the product?
A:Yes, we offer OEM/ODM services; your logo and design can be made on the product.
 
Q3. Do you have a factory?
A:Yes, we have a factory in Shandong. Welcome to visit our company and factory. We are a professional manufacturer providing OEM/ODM services to our customers.
 
Q4. What is the production capacity of your factory?
A:Our production capacity is equivalent to 200 transformers per month and 50 box-type substations per month.
 
Q5. When will the goods be shipped?
A:We will ship within 15 days. We can deliver 100 units within 30 days.