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330kV Three-Phase On-Load Tap-Changing Autotransformer

OSFSZ-360000/330

Product Overview

High-Performance power transformer designed and manufactured to international standards, suitable for power transmission and distribution systems worldwide.

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Technical Specifications

ModelOSFSZ-360000/330
Rated Capacity360000/360000/110000 kVA
Rated Voltage Ratio(345±8x1.25%)/121/35 kV
Short-Circuit ImpedanceL-M: 23%(±5%)
H-M: 18%(±3%)
L-H: 45%(±5%)
Rated Frequency50 Hz
Connection SymbolYNa0d11
Insulation LevelSI950LI1175AC510-LI325AC140
LI480AC200-LI325AC140
LI200AC85 kV
Cooling MethodONAF
No-Load Loss≤87 kW
Load Loss≤705 kW
Temperature Rise LimitTop Oil: ≤50
Winding Average: ≤60 K
Noise (Sound Pressure Level)≤67 dB(A)

Frequently Asked Questions

What is the rated capacity?

The rated capacity is 360000/360000/110000 kVA.

What is the rated voltage?

The rated voltage is (345±8x1.25%)/121/35 kV.

What is the short-circuit impedance?

The short-circuit impedance is L-M: 23%(±5%)H-M: 18%(±3%)L-H: 45%(±5%).

What is the rated frequency?

The rated frequency is 50 Hz.

What is the insulation level?

The insulation level is SI950LI1175AC510-LI325AC140LI480AC200-LI325AC140LI200AC85 kV.

What is the cooling method?

The cooling method is ONAF.

Can this product be customized?

Yes. GOHOMIN accepts customization requests for this product, including voltage rating, capacity and enclosure/protection level. Contact us with your specification and we will confirm feasibility and lead time.

What certifications does this product meet?

GOHOMIN products are manufactured to IEC standards and available with CE, UL, RCM, GCC, SIRIM and QUACERT-VCN certification depending on the market and project requirements.

What is the minimum order quantity?

MOQ depends on the product type and specification. GOHOMIN is a factory-direct manufacturer and normally accepts trial orders for project evaluation. Contact us for the specific MOQ of this item.