Basing on the summary of many years of production, JE has developed and produced special transformers independently, including rectifier transformers, epoxy encapsulated transformers, ore transformers, combined transformers, SH11 series amorphous metal closed transformers, furnace transformers, grounding transformers and other special transformers, and has formed mature development process and team of development researchers in structure and performance.
a. Amorphous metal transformer
Purpose: mainly used in urban power distribution, and power distribution projects for industrial and mining enterprises.
Features: low loss, strong capability in short circuit resistance, reasonable and advanced structure, and remarkable energy saving effect.
Voltage level: 10kV
Capacity: Up to 1250kVA
b. High ignition point oil transformer
Purpose: widely used in urban residential areas, commercial hotels, hospitals, laboratories, schools, theaters, petrochemical, subway stations, airports, mines and other important places that have high fire safety and low noise requirements.
Features: Green high ignition point oil can be completely biodegradable and color green; oil burning point is up to 308¡æ, with high fireproof and explosion-proof performance; high insulation reliability and withstand three-phase sudden short-circuit electric power.
Voltage level: Up to 35kV
Capacity: up to 3150kVA
c. Traction transformer
Purpose: mainly used for electric railway traction and substation power supply
Features: strong resistance to sudden short-circuit, overload and excessive, and stable performance
Production type: single-phase traction, balance traction and V/V traction, as well as Scott traction and AT power supply autotransformer
Voltage level: Up to 220kV
Capacity: up to 90000kVA
d. Rectifier transformer
Purpose: mainly used for power supply for electrolyzing, electroplating, electrical processing, high-voltage rectifier, power transmission, steel-making and other industries
Features: strong resistance to sudden short-circuit, overload and excessive, and reliable
Voltage level: voltage of electrified wire netting is up to 220kV
Capacity: up to 118000kVA
e. Furnace transformer
Purpose: mainly used for power supply for metallurgy, chemical, mechanical and other industries
Features: strong resistance to overload and short-circuit
Voltage level: voltage of electrified wire netting is up to 110kV
Capacity: up to 50000kVA
f. Explosion-proof transformer
Purpose: used in places with dust and gas and have explosion hazard for electric drive and lighting.
Features: has high security and reliability.
Voltage level: 10kV
Capacity: up to 2000kVA
g. Ore transformer
Purpose: this product is mainly used as power transformers for mining lighting or electric drive.
Features: high electric strength, good performance in impact resistance
Voltage level: 6kV, 10kV
Capacity: up to 1000kVA
h. Marine transformer
Purpose: for power supply in coastal areas, ships, naval vessels, and offshore drilling platforms. Used in the following harsh environment and weather conditions on the sea:
a) Air relative humidity ¡Ü 95%
b) Under the influence of condensation, oil mist, salt spray and mold
c) The swing angle of the ship during normal operation is ¡À45¡ã, the period is 3~14 seconds
d) The tilt angle is 15¡ã
Features: with high security and reliability, no partial overheating, low loss, small vibration, low noise, low partial discharge, excellent performance, convenient installation and maintenance.
Voltage level: 10kV
Capacity: up to 5000kVA