Nanchang 10kV Dry Transformer Manufacturer

Description :

　　As an important equipment in the power system of offshore oil platforms, the safe and reliable operation of dry-type transformers is crucial for the operation of the power system. The application of dry-type transformer online monitoring system can effectively realize the online monitoring of transformer status and ensure the stable operation of the power system of offshore oil platforms in the humid and salt spray marine environment, which causes partial discharge and local overheating of polar insulation in dry-type transformers.

　　Characteristics and structure of dry-type transformer:

　　1、 Temperature control system:

　　The safe operation and service life of dry-type transformers largely depend on the safety and reliability of the transformer winding insulation.

　　2、 Cooling method:

　　The cooling methods for dry-type transformers are divided into natural air cooling (AN) and forced air cooling (AF). During natural air cooling, the transformer can operate continuously for a long time at its rated capacity. When forced air cooling is used, the output capacity of the transformer can be increased by 50%. Suitable for intermittent overload operation or emergency overload operation; Due to the significant increase in load loss and impedance voltage during overload, it is in a non economic operating state and should not be subjected to long-term continuous overload operation.

　　Structural characteristics of dry-type transformers:

　　Due to its strong short-circuit resistance, low maintenance workload, high operating efficiency, small size, and low noise, dry-type transformers are commonly used in places with high performance requirements such as fire and explosion prevention.

　　1. Safe, fireproof, pollution-free, and can operate directly in the load center;

　　2. Adopting domestic technology, it has high mechanical strength, strong short-circuit resistance, small partial discharge, good thermal stability, high reliability, and long service life;

　　3. Low loss, low noise, significant energy-saving effect, maintenance free;

　　4. Good heat dissipation performance, strong overload capacity, can increase capacity operation when forced air cooling;

　　5. Good moisture resistance, suitable for operation in high humidity and other harsh environments;

　　6. Dry type transformers can be equipped with comprehensive temperature detection and protection systems. Adopting an intelligent signal temperature control system, it can automatically detect and display the working temperature of each three-phase winding, automatically start and stop the fan, and have functions such as alarm and trip settings;

　　7. Small size, light weight, small footprint, and low installation cost.

　　Working environment of dry-type transformer:

　　1. 0-40 (℃), relative humidity<70%;

　　2. Altitude: not exceeding 2500 meters;

　　3. Avoid exposure to rainwater, moisture, high temperature, high heat, or direct sunlight. The distance between its heat dissipation ventilation holes and surrounding objects should not be less than 40cm;

　　4. Prevent working in places with corrosive liquids, gases, dust, conductive fibers, or metal shavings;

　　5. Prevent working in places with vibration or electromagnetic interference;

　　6. Avoid long-term inverted storage and transportation, and avoid strong impact.

　　Dry type transformer structure type:

　　The iron core is mainly composed of silicon steel sheets and coils cast with epoxy resin. Insulation cylinders are placed between high and low voltage coils to increase electrical insulation, and the coils are supported and constrained by cushion blocks. The fasteners used for component overlap have anti loosening properties.

　　Construction performance:

　　⑴ Solid insulation encapsulated winding;

　　⑵ Do not encapsulate the winding.

　　Winding: Among the two windings, the one with higher voltage is the high-voltage winding, and the one with lower voltage is the low-voltage winding.

　　From the relative position of the high and low voltage windings, high voltage can be divided into concentric and overlapping types.

　　Concentric windings are simple and easy to manufacture, and all adopt this structural method.

　　Overlapping type, mainly used for special transformers.

　　Shandong Changneng Transformer Manufacturing Co., Ltd. always adheres to the development philosophy of "advocating science, focusing on quality, and being honest and trustworthy", and wholeheartedly provides excellent products and services for our customers.

AfterSalesService :

• Dry Transformer