10kv 11kv 15kv Oil-Immersed Transformer Oltc
China 10kv 11kv 15kv Oil-Immersed Transformer Oltc, Find details about China Transformer, High Voltage Transformer from 10kv 11kv 15kv Oil-Immersed Transformer Oltc
OLTC Oil-immersed Transformer
Description:
The oil-immersed power transformer adopts a new insulation structure to improve the ability of short circuit resistance. The core is made of high-quality cold-rolled grain-oriented silicon steel sheet. High and low-voltage windings are made of high-quality oxygen-free copper wire and multi-layer cylinder process structure. All fasteners adopt special anti-loose treatment, high mechanical strength. The corrugated tank shell is a permanently sealed tank with its own elasticity to adapt to the expansion of oil. It has been widely used in various distribution equipment.
| Structural features |
| 1. Iron core |
| The iron core is made of a cold-rolled silicon steel sheet with high magnetic conductivity and grain orientation. The iron core is a new type of iron core, full inclined seam stacked iron core, the iron core column is a round section of the multi-stage ladder, and the iron yoke and iron core are of equal section. |
| 2. Winding |
| The winding adopts a corrugated oil duct, no paint dipping process, and binding with tightening belt; The windings are concentric; The high voltage winding has taps corresponding to the requirements of tap voltage, which are led to the tap switch. The switch is installed on the box cover, and the tap voltage can be changed only after the power supply is cut off. |
| 3. Safety protection device |
| All transformers of the capacity section are equipped with pressure relief valve |
| Gas relay with alarm and trip terminals can be installed according to the user's requirements |
| 4. Oil temperature measuring device |
| All transformers are equipped with the tube socket of glass thermometer, which is set on the top of the oil tank and extends 120 ± 10 mm into the oil |
| 1000 ~ 2000kVA transformer is equipped with an outdoor signal thermometer |
| 5. Transformer mailbox |
| Transformer oil tank is composed of the corrugated wall, the surface is sprayed with dust and the paint film is firm. Corrugated heat sink not only has a cooling function but also has a "breathing" function. The elasticity of corrugated heatsink can compensate for the change of transformer oil volume caused by temperature rise and fall. Therefore, there is no oil conservator in the fully sealed transformer, which reduces the overall height of the transformer |
| The vacuum oil filling process is used in the packaging of the voltage regulator, which completely removes the moisture in the transformer, and the transformer oil does not contact the air. It can effectively prevent oxygen and moisture from invading the voltage regulator, resulting in transformer insulation performance degradation and transformer oil leakage |
| The aging problem improves the reliability of transformer operations |
| Nominal capacity | Voltage combination | Join groups | Loss SZ11 type (kW) | Non-load current | Short circuit impedance | Weight (kg) | ||||
| (kVA) | High Voltage (KV) | High pressure tap range | Low voltage (KV) | label | no-load | load | (%) | (%) | Heavy oil | Total weight |
| 200 | 10 | ±4×2.5% | 0.4 | Yyn0 Dyn11 | 0.48 | 3.06 | 1.5 | 4 | 260 | 1040 |
| 250 | 0.56 | 3.6 | 1.4 | 290 | 1160 | |||||
| 315 | 0.67 | 4.32 | 1.4 | 320 | 1360 | |||||
| 400 | 0.8 | 5.22 | 1.3 | 350 | 1550 | |||||
| 500 | 0.96 | 6.21 | 1.2 | 400 | 1820 | |||||
| 630 | 1.2 | 7.65 | 1.1 | 4.5 | 490 | 2170 | ||||
| 800 | 1.4 | 9.36 | 1 | 600 | 2590 | |||||
| 1000 | 1.7 | 10.98 | 1 | 710 | 3000 | |||||
| 1250 | 1.95 | 13.05 | 0.9 | 820 | 3630 | |||||
| 1600 | 2.4 | 15.57 | 0.8 | 840 | 4145 | |||||
| Installation height: no more than 1000m above sea level |
| Ambient temperature: -40ºC-40ºC |
| Class 10kV is suitable for AC 50Hz, rated working voltage 10kV and below the power system, as small and medium-sized substations, industrial and mining enterprises, institutions, power distribution and lighting load transformer equipment. |
| 35KV is suitable for the power system with AC 50Hz and rated working voltage 35KV, as the transformer equipment of 35KV type substation. |
Zhejiang ZheGui Electric Co., Ltd established in 2013. We are located in Zhejiang with convenient transportation access and developed electrical market. We are group of private enterprises that hold the production license issued by the former ministry of energy and ministry mechanical and electrical engineering.
The company has nearly 60 million fixed assets and more than 60 employees, covering 23133 square meters. We are specialized in R&D production of complete switchgear of high and low voltage equipment such as prefabricated substation, distribution cabinet/box, drawer cabinet, ring network cabinet, inflatable cabinet, etc.
We owns three CNC bending machine, CNC shearing machine, CNC laser cutting machine and a series of advanced production equipment to further optimized the product structure and improve the efficiency of production. After nearly 7 years of development, it has passed ISO 9001-2000 quality system certification. All items produced by our own factory, so our advantages are: reliable quality and reasonable price. Gather the world's energy to delight your business. It's honorable for Zhegui to share your progress, brilliance and success!
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