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Three Phase S11 35kv 1000kva on Load Power Transformer
  • Three Phase S11 35kv 1000kva on Load Power TransformerThree Phase S11 35kv 1000kva on Load Power Transformer
  • Three Phase S11 35kv 1000kva on Load Power TransformerThree Phase S11 35kv 1000kva on Load Power Transformer

Three Phase S11 35kv 1000kva on Load Power Transformer

Three phase s11 35kv 1000kva on load power transformer is a kind of energy saving distribution equipment designed and manufactured by Wenzhou Xifa Electric Power Equipment Co., Ltd. in strict accordance with the national standards GB/T 6451 and GB 1094. This product is designed and manufactured with advanced technology. Three phase s11 35kv 1000kva on load power transformer characterizes a reasonable structure, stable performance, reliable operation and remarkable energy saving effects. Widely applied in urban and rural industrial and agricultural power grids, mining enterprises, and small and medium-sized substations.

Three phase s11 35kv 1000kva on load power transformer complies with the standards of the IEC and GB standards. This product has a no load voltage regulation range of 35±3*2.5% kV and 38.5±3*2.5% kV. It can be adjusted manually, electrically or automatically within the voltage regulation range by means of a no load voltage regulating switch on the primary side to ensure the stability of the output voltage. For transformers above 6300 kVA at the 35kV level, the use of folded plate oil tanks significantly enhances the mechanical strength of the oil tank, reduces welds, improves the appearance quality of the transformer, and has good economic benefits.

Three Phase S11 35kv 1000kva On Load Power TransformerThree Phase S11 35kv 1000kva On Load Power Transformer

Technical parameter:

Product Name

Three phase s11 35kv 1000kva on load power transformer 

Rated Capacity

1000 kVA

Rated Voltage (HV Side)

35 kV / 38.5 kV

Rated Voltage (LV Side)

0.4 kV (400V) / 6.3 kV / 10.5 kV (Customizable)

Vector Group

Yd11 (HV Star / LV Delta, Recommended)

Yyn0 (Optional for 400V LV)

Rated Frequency

50 Hz

No-load Loss

≤1.15 kW (per GB/T 6451)

Load Loss (at 75℃)

≤11.46 – 11.54 kW

No-load Current

≤0.9% – 1.8% (Standard value ≤0.9%)

Short-circuit Impedance

6.5% (Standard value)

Insulation Class

Class A (Oil immersed)

Cooling Method

ONAN (Oil Natural Air Natural / Self cooled)

Protection Degree

IP20, IP23 (Outdoor enclosure optional)


Features:

1.The energy consumption is low and the energy saving effect is remarkable. Notably, the no load loss has been significantly reduced, averaging about 25% lower than the national standard GB/T6451.

2. The core is made of high quality cold rolled silicon steel sheets. The domestically advanced cross cutting line ensures that the cutting burrs are less than 0.02mm. The entire process features full bevel joints, no punching, and no overlapping of the yokes. The core columns are stacked and bonded together, forming a compact, flat, and solid whole. This effectively reduces the no load loss, no load current, and noise of the transformer.

3. The three phase s11 35kv 1000kva on load power transformer coils are made of high purity oxygen free copper, which effectively reduces copper loss. The corners of the coil pads and support bars are rounded, resulting in uniform electric field and increased reliability. The inner winding support is strengthened to enhance its stability and prevent instability and deformation.

4. The tank wall is made of a single piece of steel plate. It is formed into a corrugated structure by a large press machine, which reduces the number of welds, enhances mechanical strength, expands the heat absorption area, improves the heat dissipation effect, and at the same time, the corrugated tank wall avoids the planar reflection of sound waves, thereby reducing noise. The three phase s11 35kv 1000kva on load power transformer as a whole is both beautiful and simple.

5. The capsule type oil reservoir is adopted, which effectively slows down the aging process of the transformer oil; the pointer type oil level gauge can prevent the occurrence of false oil level and solve the problem of light induced aging of the transformer oil; the gas relay with a gas collection device is convenient for maintenance and operation.

6. Special processing is carried out on the sealing part of the three phase s11 35kv 1000kva on load power transformer oil tank, and the entire body of the tank is sprayed with paint to remove the sharp corners, burrs and welding slag produced during the processing, and to enhance the adhesion of the paint.


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