3 Phase Step Up Transformer Electricity 10000kva 110kv Oil Immersed Transformer

3 Phase Step Up Transformer Electricity 10000kva 110kv Oil Immersed Transformer

1. Product Description

3 Phase Step Up Transformer Electricity 10000kva 110kv Oil Immersed Transformer is a large-capacity high-voltage three-phase oil immersed power transformer professionally developed for medium and high voltage power elevation, grid integration and bulk power transmission projects. As a 10MVA class high-power step-up transformer, this 110kV oil immersed transformer is designed to convert low-voltage or medium-voltage generated electricity into standard 110kV high-voltage power, solving the core industry pain points of insufficient transmission distance, excessive line loss and unqualified grid-connected voltage in large-scale power generation and regional power supply systems. Manufactured in full compliance with IEC 60076 international power standards and GB/T 1094 national power transformer specifications, this heavy-duty oil filled step-up transformer adopts upgraded low-loss core technology and reinforced winding structure, delivering stable, safe and efficient voltage conversion for new energy power bases, industrial power plants and regional main substation projects.

Different from conventional low-voltage distribution transformers, this 3-phase 110kV step-up oil immersed transformer focuses on high-capacity long-distance power transmission and grid standard matching. It is equipped with high-purity oxygen-free copper integral windings and ultra-low loss grain-oriented silicon steel core, effectively suppressing no-load excitation loss and full-load temperature rise during high-voltage step-up operation. Adopting mature YNd11 vector group connection, the equipment maintains precise three-phase voltage and current balance, filters grid harmonics caused by large-capacity power conversion, and restrains zero-sequence current interference. The fully sealed thickened corrugated oil tank and advanced ONAN oil natural air natural cooling system completely isolate internal insulating components from external harsh environments, preventing insulating oil aging, moisture penetration and high-voltage oil leakage faults. Tailored for heavy-duty continuous operation, this 10000kVA 110kV step-up power transformer features strong short-circuit resistance, stable voltage output and ultra-long service life, becoming the core voltage conversion equipment for large-scale power generation and high-voltage grid upgrading projects.

2. Main Technical Parameters

The following table summarizes the complete standardized technical parameters of 3 Phase Step Up Transformer Electricity 10000kva 110kv Oil Immersed Transformer. All electrical performance indicators, structural specifications, insulation grades and operational parameters meet national first-class energy efficiency standards and high-voltage grid access acceptance criteria, supporting accurate engineering design, professional on-site installation and standardized daily operation and maintenance:

3. Core Purpose

The core purpose of 3 Phase Step Up Transformer Electricity 10000kva 110kv Oil Immersed Transformer is to realize large-capacity medium-to-high voltage elevation and standardized grid-connected power transmission for bulk power generation systems and regional power grid projects. In centralized new energy power stations, self-provided power plants and urban grid expansion projects, medium-voltage generated power cannot support long-distance high-efficiency transmission and direct access to 110kV main grid networks. This professional 10MVA high-voltage step-up transformer stably converts medium-voltage electric energy into standard 110kV high-voltage power, solving the fundamental problems of short transmission distance, severe voltage attenuation and high line loss in medium and low voltage power transmission.

In actual power system operation, this 3-phase oil immersed step-up transformer undertakes multiple critical core functions including grid voltage stabilization, bulk power distribution balancing, power quality optimization and circuit fault isolation. With 10000kVA super-large rated capacity, it meets the continuous full-load power boosting demands of medium and large-scale power generation projects, effectively improving power transmission efficiency and reducing regional grid operation costs. The precise voltage regulation capability adapts to grid voltage fluctuation in peak and off-peak periods, ensuring stable and compliant grid-connected power quality. Meanwhile, its excellent short-circuit withstand performance can isolate sudden grid faults, protect upstream power generation equipment and downstream grid facilities, and provide reliable high-voltage power conversion support for safe and stable operation of regional backbone power grids.

4. Application Scenarios

Benefiting from 10MVA large load capacity, ultra-low energy loss, excellent high-voltage insulation performance and strong environmental adaptability, 3 Phase Step Up Transformer Electricity 10000kva 110kv Oil Immersed Transformer is widely applied in high-voltage grid construction, centralized new energy grid connection, industrial self-power generation and regional power supply upgrading projects. It is the preferred core equipment for large-scale high-voltage power boosting and grid integration:

• Centralized New Energy Power Station Grid Connection: Widely used for large-scale centralized photovoltaic power bases and onshore wind power stations. It boosts medium-voltage power generated by new energy units to 110kV high voltage, realizing bulk power grid-connected transmission and solving the problem of low-efficiency long-distance transmission of new energy power.

• Industrial Self-provided Power Plant Projects: Ideal for large chemical plants, metallurgical enterprises and mining industrial parks with self-provided power generation systems. It converts factory self-generated medium-voltage electricity into 110kV high voltage for external grid power transmission or internal high-voltage power distribution, improving energy utilization efficiency.

• Regional Main Substation Construction: Serves as core voltage conversion equipment for urban and county-level 110kV backbone substations. It undertakes regional bulk power boosting and transmission tasks, supporting peak load regulation and stable power supply for urban and rural power grids.

• High-voltage Power Grid Capacity Expansion & Renovation: Applied in aging regional power grid upgrading and capacity expansion projects, replacing old high-loss small-capacity transformers. It effectively improves regional power transmission capacity, reduces grid operation loss and optimizes power grid operation structure.

• Large-scale Energy Storage Power Station Matching: Matched with large centralized energy storage power stations to complete high-capacity power step-up conversion. It ensures stable and efficient grid connection of stored electric energy, improving the flexibility and reliability of new energy power grid operation.

• Remote Area Power Supply Engineering: Used for long-distance power transmission projects in remote mountainous areas and offshore islands. The 110kV high-voltage step-up transmission mode greatly reduces line voltage drop and power loss, improving remote regional power supply stability and coverage.

5. Product Features

3 Phase Step Up Transformer Electricity 10000kva 110kv Oil Immersed Transformer adopts upgraded high-voltage low-loss manufacturing technology and heavy-duty reinforced structural design. Compared with conventional medium-voltage step-up transformers and old-generation high-voltage power transformers, this 10000kVA 110kV oil immersed step-up transformer has comprehensive advantages in load capacity, energy-saving performance, operational stability and safety protection, fully adapting to long-term full-load heavy-duty operation of high-voltage backbone power grids:

• 10MVA Large Capacity & Strong Load Adaptability: With 10000kVA super-large rated capacity, it fully meets the continuous heavy-load power boosting demands of large power generation projects and regional grid bulk transmission. It stably copes with long-term full-load operation and seasonal peak power surges, with sufficient load margin to support subsequent power grid expansion and new energy capacity growth.

• Ultra-low Loss & High Grid Operation Efficiency: Adopting high-permeability ultra-low loss silicon steel core and high-conductivity pure copper winding structure, it greatly reduces no-load excitation loss and full-load operating loss during high-voltage step-up conversion. All energy efficiency indicators reach national first-class energy efficiency standards, effectively lowering long-term power grid operation and power transmission costs.

• YNd11 Balanced Output & Superior Power Quality: Standard YNd11 high-voltage winding connection ensures precise three-phase voltage and current balance. It effectively suppresses new energy power generation harmonics, filters grid clutter and eliminates zero-sequence current interference, maintaining stable 110kV high-voltage output quality under complex load conditions.

• Enhanced High-voltage Insulation & Short-circuit Resistance: Optimized reinforced winding structure and 110kV high-grade insulation configuration greatly improve lightning impulse resistance and short-circuit impact tolerance. It can resist sudden grid overvoltage and short-circuit faults, effectively protecting equipment and grid system safety during long-term high-voltage operation.

• Fully Sealed Maintenance-free Oil Immersed Structure: Integral fully welded thickened corrugated oil tank forms a closed isolation structure, completely preventing external moisture, dust and corrosive gases from entering the interior. It avoids insulating oil aging, insulation damp and high-voltage oil leakage faults, greatly reducing daily maintenance workload and extending equipment service life.

• Efficient Heat Dissipation & All-weather Adaptability: Mature ONAN natural oil circulation and air cooling system ensures uniform and efficient heat dissipation, rapidly discharging internal heat generated by long-term full-load operation. The overall heavy-duty anti-corrosion and weather-resistant process adapts to high temperature, low temperature, strong wind and rainy harsh outdoor environments, supporting 24-hour uninterrupted safe operation all year round.

6. FAQ (Frequently Asked Questions)

Q1: What engineering scenarios are suitable for the 10000kVA 110kV oil immersed step-up transformer?

This 10MVA 110kV high-voltage step-up transformer is specially designed for large-capacity power boosting and high-voltage grid integration scenarios. It is not applicable for conventional low-voltage distribution scenarios, but perfectly matches centralized photovoltaic and wind power stations, industrial self-provided power plants, county-level 110kV main substations and large energy storage power stations. For projects requiring long-distance bulk power transmission and standardized high-voltage grid connection, this equipment can effectively reduce line loss and improve power supply stability. Its large load margin and high safety performance also make it suitable for grid upgrading and capacity expansion projects with future load growth demands.

Q2: What are the advantages of oil immersed structure compared with dry-type transformers for 110kV high-voltage step-up scenarios?

In 110kV high-voltage and long-term full-load operation scenarios, oil immersed step-up transformers have obvious practical advantages. First, the oil circulation cooling system provides more uniform and efficient heat dissipation, with stronger continuous full-load operation capability and better overload resistance than dry-type high-voltage transformers. Second, the fully sealed oil tank structure has superior high-voltage insulation stability and environmental adaptability, resisting outdoor humidity, dust and temperature changes to avoid insulation aging breakdown. In addition, high-voltage oil immersed transformers have lower manufacturing cost, more stable long-term operation performance and longer service life, which is more in line with the long-term unattended operation demands of outdoor high-voltage substations and power generation bases.

Q3: What daily maintenance does the 10000kVA 110kV high-voltage step-up transformer require?

This large-capacity 110kV oil immersed step-up transformer requires standardized regular maintenance to ensure long-term stable operation. Daily inspection mainly includes checking the oil tank for oil leakage, shell deformation and corrosion, observing insulating oil level and clarity, and monitoring operating noise and temperature rise. Regular maintenance needs to clean radiator dust to ensure unobstructed heat dissipation, test winding insulation resistance and three-phase voltage balance, and fasten high-voltage wiring terminals. It is necessary to periodically sample and test insulating oil dielectric strength to prevent oil aging and insulation performance degradation. Avoiding long-term overload operation and frequent grid voltage impact can effectively extend the service life, ensuring stable full-load operation for more than 25 years.