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35KV High-Voltage Power Transformer

Name: 35KV High-Voltage Power Transformer
Brand: Zhejiang Tenrony Electricity Co., Ltd.
Availability: InStock

This oil-immersed power transformer features a remarkable advanced design. Through comprehensive optimization and improvement in material selection, structural design, and production processes, power transformer's overall performance has reached an advanced level similar to international products. 35 kva transformer has passed the sudden short-circuit test verification by the National Transformer Quality Supervision and Inspection Center, with stable and reliable core performance, fully meeting the application requirements of the power system for efficient and stable power transformation equipment.

Products

Features

Structural Design Features:

The high and low voltage clamping pieces are tightened by steel tension belts or upper and side beams, forming a solid frame structure. This not only enhances the clamping force of the core but also improves the equipment's ability to withstand transportation shocks.

The high and low voltage coils are equipped with longitudinal oil channels, which facilitate heat dissipation and optimize heat conduction efficiency specifically.

Operational Performance Features:

Strong short-circuit resistance, verified by authoritative sudden short-circuit tests, capable of handling short-circuit conditions in power systems; high operational reliability, reducing the probability of fault-induced shutdowns.

Low losses, reducing energy consumption during power transmission; low noise, causing minimal acoustic disturbance to the surrounding environment.

Appearance and Craftsmanship Features:

Attractive appearance design, balancing functionality and visual appeal; 35 kva transformer process has been optimized and upgraded to ensure stable performance.

Parameters

Main technical parameters
Rated capacity (kVA)	Connect groups	Voltage combination(KV)			No-load loss W	Load loss W	No-loadcurrent(%)	Short-circuit impedance(%)
Rated capacity (kVA)	Connect groups	voltage	Tapping range	Low voltage	No-load loss W	Load loss W	No-loadcurrent(%)	Short-circuit impedance(%)
630	Yd11	35	±5%	3.15 6.3 10.5	830	7870	1.10	6.5
800					980	9410	1.00
1000					1150	11540	1.00
1250					1410	13940	0.90
1600					1700	16670	0.80
2000					2180	18380	0.70
2500					2560	19670	0.60
3150		35~38.5	±5%	3.15 6.3 10.5	3040	23090	0.56	7.0
4000					3620	27360	0.56
5000					4320	31380	0.48
6300					5250	35060	0.48	7.5
8000	Ynd11	35~38.5	±5% 或 ±2×2.5%	3.15 3.3 6.3 6.6 10.5 11	7200	38500	0.42
10000					8700	45300	0.42
12500					10080	53900	0.40	8.0
16000					12160	65800	0.40
20000					14400	79500	0.40
25000					17020	94100	0.32
31500					20220	112900	0.32

Note 1: For transformers with a rated capacity of 6300kVA and below, products with a high-voltage tapping range of±2×2.5%can be provided.

Note 2: For transformers with low-voltage voltages of 10.5kV and 11kV, products with connection group number Dyn11 can be provided.

Note 3: For transformers with a rated capacity of 3150kVA and above,the-5%tap position is the maximum current tap.

Three-phase double-wound on-load voltage regulating power transformer with a capacity of 2000kVA to 20,000kVA
Rated capacity (kVA)	Connect groups	Voltage combination(kV)			No-load loss W	Load loss W	No-load current(%)	Short-circuit impedance(%)
		High voltage	Tapping range	Low voltage
2000	Yd11	35	±3×2.5%	6.3 10.5	2300	19240	0.80	6.5
2500					2720	20640	0.80
3150		35~38.5	±3×2.5%	6.3 10.5	3230	24710	0.72	7.0
4000					3870	29160	0.72
5000					4640	34200	0.68
6300					5630	36800	0.68	7.5
8000	Ynd11	35~38.5	±3×2.5%	6.3 6.6 10.5 11	7870	40600	0.60
10000					9280	48100	0.60
12500					10940	56900	0.56	8.0
16000					13170	70300	0.54
20000					15570	82800	0.54

Note 1: Fortransformers with low-voltage voltages of 10.5kV and 11kV, products with connection group number Dyn11 can be provided.

Note 2: The maximum current tap is at the-7.5%tap position.

When the number of tap stages and the stage voltage remain unchanged, it is allowed to increase the number of negative tap stages and decrease the number of positive tap stages, or increase the number of positive tap stages and decrease the number of negative tap stages, such as(353)×22.5%.

Benefits

Performance Reliability Advantage: The core strength lies in its short-circuit resistance, which has been verified by national authoritative testing (passing the sudden short-circuit test in one attempt). The structural design of the high and low voltage coils and the core further enhances the stability of the equipment under complex working conditions, reducing operational risks.
Energy Efficiency and Heat Dissipation Advantage: The vertical oil duct design significantly improves heat dissipation efficiency, effectively reducing the temperature difference between the copper and oil as well as the temperature rise at the hottest point within the coil, thus avoiding premature equipment aging due to overheating. Additionally, its low-loss feature helps reduce energy waste and enhance the overall energy efficiency of the power system.
Structural and Compatibility Advantage: The robust frame structure not only enhances the equipment's resistance to shock during transportation, facilitating its transfer before installation and deployment, but also ensures long-term operational accuracy through a stable core clamping force. Moreover, its low noise characteristic makes it suitable for environments with noise control requirements.

Use

Based on 35 kva transformert's high reliability, low loss, strong short-circuit resistance, and efficient heat dissipation, this oil-immersed power transformer is mainly suitable for power system scenarios that have high requirements for power supply stability, energy efficiency, and equipment durability. Specifically, 35 kva transformer can be applied in:

Power transmission and distribution: As the main transformer in regional power grids, 35kv distribution transformer is used for voltage reduction or increase at the 35kV voltage level, connecting power grids of different voltage levels, and ensuring power transmission in urban power grids, industrial park power grids, etc.
Industrial and infrastructure: 35 kva transformer is suitable for large industrial plants (such as manufacturing factories, heavy industrial bases), industrial parks, and other scenarios that require a stable, high-power supply. 35 kva transformer can also be used in infrastructure power systems with high requirements for equipment reliability (such as power grids for large transportation hubs, power supply systems for key public buildings, etc.).
Other specialized power scenarios: 35 kva transformer is suitable for power projects that have clear requirements for transformer impact resistance and low loss, especially for power nodes that need long-term stable operation and reduced maintenance intervention.

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