330kV Power Transformer
Category: Power Transformers
Rating kVA:
5 MVA – 300 MVA
Voltage ratings:
Up to 330 kV
Complant With Standard:
info@tgtpower.com
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Fan
Designed for both natural and forced air cooling.In ONAF mode, the fan-assisted cooling significantly enhances heat dissipation, ensuring reliable performance under higher loads and demanding conditions.
Control Cabinet
Engineered for precise monitoring and control, ensuring accurate operation, fast response, and reliable system performance.
On-load Tap Changer
Equipped with premium Huaming or MR brands, ensuring precise voltage regulation, high reliability, and proven long-term performance.
Radiator
In-house welded for superior sealing, strength, and reliable heat dissipation.
Winding
Precisely hand-assembled for superior craftsmanship, ensuring tighter control, enhanced reliability, and consistent performance.
Oil Conservator
Ensures stable oil volume by compensating for temperature changes, while minimizing moisture and air contamination to maintain insulation reliability.
Bushing
We offer customer-specified bushings, including trusted brands like ABB, to meet diverse project requirements.
- Product Description
-
TGT 330kV power transformers deliver unwavering stability, maximized uptime, and optimal energy efficiency for large-scale transmission substations, public utilities, and mega-scale renewable generation basins. Calculated and cross-validated up to 720MVA capacity, these (grid-level) core assets features zero-tolerance partial discharge profiles and extreme dynamic short-circuit tolerance. Fully compliant with ANSI/IEEE C57, NEMA, and IEC 60076 standards, TGT substations power systems are fully certified by KEMA, IEC, and ISO 9001.
Key Features
Optimized Design
Full-scale simulation ensures superior electrical and mechanical performance.
Premium Construction
Efficient manufacturing with elite material selection results in a compact, lightweight, and low-noise unit.
Operational Excellence
Industry-low partial discharge and loss levels contribute to significant energy savings and reduced running costs.
Sustainable & Reliable
Engineered for environmental protection and long-term stability in demanding environments.
Applications
Perfectly suited for power generation, grid substations, and heavy industrial mineralization projects. Proven performance that exceeds expert standards and user expectations.
Technical Data for 330kV power transformer three phase double-winding
Rated
Capacity(kVA)Rated voltage and tapping range
Vector
groupNo load
current(%)Short-circuit
impedance(%)No load
Losses(W)On load
Losses(W)HV(kV)
Tapping range(%)
LV(kV)
90000
345
363
±2×2.5
10.5
13.8
15.75
18
20YNd11
0.35
14-15
37000
247000
120000
0.35
47000
306000
150000
0.33
56000
362000
180000
0.30
64000
415000
240000
0.27
80000
515000
360000
0.27
109000
722000
370000
0.24
111000
736000
400000
0.24
118000
780000
720000
0.16
183000
1212000
Technical Data for 330kV power transformer three phase three-winding
Rated
Capacity
(kVA)Rated voltage and tapping range
Vector
groupNo load
current(%)Short-circuit
impedance(%)No load
Losses(W)On load
Losses(W)HV(kV)
Tapping range(%)
MV(kV)
HV(kV)
90000
330
345
±2×2.5
121
10.5
13.8
15.75YNynOd11
0.37
HV-MV:
24~26
HV-LV:
14~15
MV-LV:
8~94253
302374
120000
0.37
4253
302374
150000
0.34
63000
442000
180000
0.34
72000
507000
240000
0.32
89000
629000
Certification Certificate
Core Advantage Of TGT Power Transformers
Ultra-Low Loss Slicing
Engineered with high-permeability grain-oriented silicon steel sheets and advanced step-lap progressive joints to drastically minimize core losses and acoustic humming.
Fortified Anti-Short-Circuit Resilience
Windings utilize advanced inner-shielded, interleaved, or continuous coil architectures, thermally hardened under vacuum pressure to survive rigid system short-circuit impacts.
On-Load Tap Changer (OLTC)
Integrates industry-benchmark MR (Germany) or ABB tap changers, guaranteeing millions of smooth, automated voltage adjustments under full load conditions.
Rigid Insulation Matrix
Crafted strictly with specialized high-density insulation pressboards and premium Class H thermal upgrade barriers.
TGT Power Transformers Project Application
Mega-Scale Grid Interconnection
Deployed as primary step-up substation units up to 720MVA capacity, seamlessly synchronizing bulky electricity output from multi-GW wind and solar generation fields into high-voltage continental transmission grids.
Heavy Industrial Continuous Operations
Serves massive aluminum smelting foundries, automotive assembly complexes, and deep mining projects, providing uncompromised dynamic voltage correction and short-circuit impact ruggedness under severe inductive cyclic shifting.
Thermal & Hotspot Longevity
Validated via advanced core fluid dynamics, these field assets permanently eliminate internal thermal hot spots, ensuring zero-overheating insulation degradation in harsh high-altitude utility basins and arid desert project terrains.
Risk-Free Turn-Key Commissioning
Every project tracking phase integrates dual-language CAD engineering validation, positive-pressure nitrogen seaworthy transit, and expert-led on-site re-oil and comprehensive vector-synchronization checks.
PackagingPositive Pressure Nitrogen Filling:
Shipped fully drained of oil and filled with continuous positive pressure dry nitrogen to permanently isolate the internal core from intercontinental ocean humidity.
Welded Heavy Steel Skid Bases:
Shock-stabilized onto heavy steel frames and block-welded directly into the lift vessel's cargo hold to fully absorb sea swells and low-frequency hull vibrations.
Independent Protective Timber Caging:
Crucial capacitor-type bushings, radiator panels, and oil conservator tanks are disassembled and secured within custom foam-lined, heavy solid timber crates.
Product Inquiry
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Tel: +86 18862707318
Email: info@tgtpower.com
Address: Room B05, 4th Floor, Building 5, No. 22 Youxiang Road, Wuzhong District, Suzhou City, Jiangsu Province