1000kva 1250kva 1600kva Class Oil Immersed Transformer 3 Phase 10kv 400v Step up 35kv Input 11kv Out
1000kva 1250kva 1600kva Class Oil Immersed Transformer 3 Phase 10kv 400v Step up 35kv Input 11kv Output Voltage
1. Product Overview
The 1000kVA, 1250kVA and 1600kVA class three-phase oil immersed transformer is a heavy-duty industrial power conversion device engineered for medium and high voltage power grid step-up and step-down operations. Designed with versatile voltage conversion capabilities, this 3 phase oil immersed transformer supports multiple voltage modes including 10kV, 400V step up to 35kV, as well as customized 11kV output voltage, covering most medium-voltage power transmission and industrial power distribution demands.
Manufactured with high-quality cold-rolled silicon steel cores and pure copper windings, this high-capacity oil filled transformer delivers low magnetic loss, stable voltage conversion and excellent heat dissipation performance. Adopting traditional mature oil immersed cooling technology, the equipment effectively solves the heat dissipation problem of high-load operation, ensuring continuous and stable operation under long-term full-load and overload conditions. Available in three mainstream power ratings of 1000kVA, 1250kVA and 1600kVA, it can flexibly match different scale industrial production, factory power supply and power grid transformation projects, serving as core power equipment for medium and large-scale power distribution systems.
2. Core Purpose
This 3 phase 10kV/35kV oil immersed step-up transformer mainly undertakes voltage conversion, power transmission and power distribution stabilization in industrial power systems and regional power grids. Its core function is to convert low-voltage 400V and conventional medium-voltage 10kV electric energy into high-standard 35kV high-voltage power for long-distance transmission, while it can also adjust the output voltage to 11kV according to actual project needs to meet the access requirements of terminal medium-voltage equipment.
For industrial parks and manufacturing enterprises with large power consumption, the 1000kVA–1600kVA high-power oil immersed transformer balances grid voltage, reduces line transmission loss, and improves power supply efficiency. In new energy power generation, industrial power upgrading and rural high-capacity grid renovation projects, it stabilizes power load, avoids voltage flicker and power supply instability caused by high-power equipment startup and operation, and guarantees the safe and standardized operation of the entire power distribution system.
3. Main Application Scenarios
3.1 Industrial Factory Power Supply & Expansion
Suitable for large manufacturing factories, chemical plants, metallurgical enterprises and processing plants that require high-capacity power support. The 1000kVA, 1250kVA and 1600kVA power grades perfectly match the high-load power consumption of industrial mechanical equipment, production lines and electrical control systems. The 10kV to 35kV step-up function meets the demand of factory internal high-voltage power transmission, while the 11kV output mode adapts to medium-voltage industrial equipment operation standards, widely used in industrial power supply renovation and capacity expansion projects.
3.2 New Energy Power Generation Supporting System
This 3 phase oil immersed step up transformer is an essential device for photovoltaic power stations, wind power plants and distributed new energy power generation projects. It converts the low and unstable 400V and 10kV electric energy generated by new energy units into 35kV high-voltage power for grid-connected transmission, and can output stable 11kV voltage for on-site self-use power equipment. With strong overload resistance and stable operation, it adapts to the intermittent and fluctuating power generation characteristics of new energy, effectively improving new energy grid-connected power quality.
3.3 Urban & Rural Power Grid Renovation Project
In urban suburban grid upgrading, rural high-capacity power grid reconstruction and regional power distribution station construction projects, high-power 1000kVA/1250kVA/1600kVA oil immersed transformers are widely deployed. They realize 10kV medium-voltage grid step-up to 35kV trunk grid transmission, reduce long-distance power transmission loss, and improve regional power supply capacity and power supply reliability. The optional 11kV output also supports the power supply demand of township industrial zones and rural centralized processing bases.
3.4 Commercial Park & Public Infrastructure Power Supply
Applicable for large industrial parks, logistics parks, comprehensive commercial zones and municipal public facilities including water supply plants, sewage treatment plants and substation stations. The high-efficiency voltage conversion performance of the 10kV/400V to 35kV step-up transformer meets the high-capacity and stable power supply demands of centralized power consumption areas, and the adjustable 11kV output voltage ensures the normal operation of medium-voltage power distribution equipment in public infrastructure.
4. Product Core Features
4.1 Multi-Specification Power & Voltage Customization
This series covers three mainstream high-capacity specifications: 1000kVA, 1250kVA and 1600kVA, which can meet the power demand of different load levels. It supports diverse voltage conversion modes including 400V/100V step up to 35kV and customizable 11kV output voltage. The flexible voltage and power configuration enables the three-phase oil immersed transformer to adapt to multiple working conditions of step-up transmission, on-site power distribution and terminal voltage matching, with extremely high project compatibility.
4.2 High Efficiency & Low Loss Energy-Saving Performance
Adopting high-permeability silicon steel sheet core and intensive pure copper winding structure, the equipment effectively reduces no-load loss, load loss and magnetic leakage loss. The optimized electromagnetic design greatly improves power conversion efficiency, and the overall energy consumption index is far lower than traditional ordinary oil filled transformers. It can maintain high-efficiency operation under long-term full-load and partial-load conditions, effectively reducing enterprise power consumption and grid operation costs, and meeting national industrial energy-saving standards.
4.3 Excellent Heat Dissipation & Stable Continuous Operation
Equipped with advanced oil circulation heat dissipation system and external heat dissipation fins, this industrial oil immersed transformer realizes automatic circulating heat dissipation through insulating oil. It can quickly export the heat generated by high-load operation, avoid equipment overheating and insulation aging, and support 24-hour uninterrupted continuous operation. The fully sealed oil tank structure prevents insulating oil deterioration and moisture ingress, ensuring long-term stable operation in complex industrial and outdoor environments.
4.4 Complete Safety Protection & High Reliability
The transformer is equipped with multiple safety protection devices including overvoltage protection, overcurrent protection, short-circuit protection and oil temperature monitoring. It can automatically alarm and cut off the circuit in case of grid surge, equipment overload and short-circuit faults, which effectively protects the transformer body and rear-end power equipment. The overall structure is firm, with strong compression resistance and seismic performance, adapting to harsh industrial environments, and the product service life can reach more than 25 years under normal operating conditions.
4.5 Simple Installation & Low Maintenance Cost
The integrated modular structure design simplifies the on-site installation and debugging process of the 3 phase high voltage transformer. The standard reserved wiring interface is convenient for grid connection and equipment docking. The fully sealed anti-leakage oil tank avoids frequent oil replacement and maintenance. Daily operation only requires regular oil quality inspection and equipment appearance inspection, with low later maintenance cost and high operational stability, which is very suitable for large-scale popularization and application in industrial and power grid projects.
5. Frequently Asked Questions (FAQ)
Q1: How to choose the right capacity among 1000kVA, 1250kVA and 1600kVA oil immersed transformers?
The selection mainly depends on the actual total load power and future power expansion demand of the project. 1000kVA is suitable for small and medium-sized factories, single industrial workshops and conventional township power grid renovation projects with stable and medium load. 1250kVA is the preferred model for medium-sized industrial parks and new energy distributed power stations with slightly higher load demand. 1600kVA is used for large manufacturing enterprises, centralized power consumption parks and large-scale new energy grid-connected projects with high full-load power demand. It is recommended to reserve 10%-20% capacity margin according to the actual working conditions to avoid long-term overload operation.
Q2: What is the difference between 35kV step-up and 11kV output modes of this transformer?
The 10kV/400V step up to 35kV mode is mainly used for long-distance high-voltage power transmission and grid-connected power supply, which can effectively reduce line transmission loss and is mostly applied in power grid trunk line transmission and new energy grid-connected projects. The customized 11kV output is a medium-voltage output mode, mainly matching the voltage standard of on-site industrial medium-voltage equipment and regional branch power distribution networks, which is suitable for on-site self-use power and short-distance power distribution. Users can put forward voltage parameter requirements before production, and we can complete personalized voltage debugging according to project standards.
Q3: What environmental conditions are suitable for the operation of this three-phase oil immersed transformer?
This series of oil immersed industrial transformers is suitable for indoor substation rooms, outdoor closed transformer platforms and industrial field fixed installation environments. The applicable ambient temperature range is -25℃ to +45℃, and it can adapt to plain and hilly areas with conventional humidity and no severe corrosive gas. It is forbidden to operate in flammable, explosive and strong corrosive environments. Compared with dry-type transformers, oil immersed transformers have better heat dissipation performance and are more suitable for long-term high-load continuous operation in industrial high-power scenarios.
