SKU: GDE-SG-M-400kVA
Category: Transformer
Availability: Unlimited
The TSTY 400kVA Isolation Transformer is designed to deliver stable, secure, and noise-free power for medium to large-scale industrial and commercial operations. With a 400V Delta primary and 400V Star secondary configuration, it provides complete electrical isolation that enhances safety, protects sensitive equipment, and reduces the impact of electrical disturbances.
Built with copper-to-copper windings and an oil-immersed design, the SG-M-400kVA ensures clean and consistent power output while minimizing electrical noise and preventing ground loop issues. Its rugged construction and efficient silicon steel core make it suitable for continuous operation in demanding environments.
This transformer is a reliable choice for facilities that require dependable power quality and long-term performance.
Best For:
✔ Manufacturing and industrial facilities
✔ IT infrastructure and data rooms
✔ Commercial complexes and large buildings
✔ Applications requiring clean, isolated power
Brand: TSTY
Model Number:
Availability: In stock
Minimum order quantity: 1
Maximum order quantity:
Listed date: 14th Dec, 2025
Model: SG-M-400kVA
Rated Capacity: 400kVA
Primary Voltage (H.V): 0.4kV (400V)
Secondary Voltage (L.V): 0.4kV (400V)
Vector Group: Dyn11
Phase: 3-Phase
Frequency: 50Hz
Short Circuit Impedance: 4%
H.V Current: 577.35A
L.V Current: 577.35A
Losses
No-Load Losses: 800W (±15%)
Load Losses: 4320W (±15%)
Construction & Design
Winding Material: Copper to Copper
Transformer Type: Oil-immersed
Cooling Method: ONAN
Oil Type: Mineral oil
Core Material: Silicon steel sheet
Physical Details
Dimensions (L × W × H): 1415 × 985 × 1096 mm
Weight: 1300 kg
Safety & Monitoring
Oil level thermometer: Equipped
Oil level indicator: Equipped
Pressure relief device: Equipped
Lifecycle & Warranty
Service Lifetime: 15–20 years
Warranty: 2 Years
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