2017年4月7日星期五

oil type transformer for industrial lighting

oil type transformer are specifically designed for servicing residential overhead distribution loads. They are also suitable for light commercial loads, industrial lighting and diversified power applications.
These oil immersed distribution transformer are designed for the application conditions normally encountered on electric utility power distribution systems.

2017年4月3日星期一

The oil transformer can be used in oil self-cooling mode

The oil transformer use of oil-immersed, self-cooling cooling capacity on the increase in the limit, 40000kVA and below the rated capacity of the transformer can be used in oil self-cooling mode.
100kva oil transformer do not assist the fan with the power supply, no fan noise generated, the radiator can be directly held in the transformer fuel tank, can also be concentrated in the vicinity of the transformer, oil-immersed self-cooling transformer maintenance is simple, can always run at rated capacity.

2017年3月30日星期四

Two types of oil immersed power transformer

One types of oil immersed power transformer ,The usual transformers are double-winding transformers, that is, there are two windings on the core, one for the original winding, one for the secondary winding.
Another type of oil immersed transformer Three-winding transformers are larger capacity transformers (above 5600 kVA) to connect three different voltage lines. In special cases, there are transformers that use more windings.

2017年3月26日星期日

oil type transformer, reason for the temperature rise

In the oil type transformer are generally used in a class of insulation, insulation heat resistance of 105 ℃.
As the ambient temperature is generally lower than 40 ℃, so the transformer winding temperature generally reach the limit operating temperature.
oil immersed distribution transformer ,Even in a short time to reach 105 ℃, because the time is very short, the insulation of the winding is not directly dangerous.

2017年3月22日星期三

oil immersed distribution transformer Features

oil immersed distribution transformer Features
Using high-performance silicon steel sheet, coil conductor and insulation materials
Small size and light weight
Energy saving
Oil type transformer is easy installation

2017年3月18日星期六

application performance of oil immersed transformer

The oil immersed transformer can be safely reduced to the user can safely use the voltage to ensure that people can safely use electricity.In the use of transformers, pay attention to oil and dry processing workers and, if the oil transformer for a long time not used, running time Too long or other aspects of the situation may cause changes in transformer insulation, internal water or deterioration of oil and other phenomena, must be timely for the transformer oil and drying treatment, to further enhance the application performance of oil-immersed transformers.

2017年3月14日星期二

oil immersed distribution transformer Technical Specifications

oil immersed distribution transformer Technical Specifications
1. Voltage class: 6~35kV
2. Model of voltage regulation: Off-excitation or on-load tap changer
3. Tapping range: 5%, 2x2.5%,
4. Power Capacity: 30-4000kVA
5. Frequency: 50Hz or 60HZ
6. Phase No.: Single phase or three phases
7. Vector Group: Yyn0 or Dyn11 or according to customers' requirements
8. Impedance voltage: 4~9% or according to customers' requirements
9. oil transformer Service condition: 100% relative humidity, ambient temperature not more than 40ºC or according to customers' requirements
10. Type of cooling: AN or AF
11. Guard class: IP00, IP20, IP23
12. Thermo-tolerance class of insulation: F
13. Insulation level: A. For 10kV class: LI75AC35; B. For 35kV class: LI170AC70