Transformer Dyn11 connection: high voltage side triangle, low voltage side star and neutral line, high voltage and low voltage have a 30℃ phase difference
19-Jan-2022 view more
In daily operations to deal with transformer short circuit accidents, are to find out the essence of the problem through inspection and test. Transformer in the sudden short circuit, high and low voltage side will be subject to a lot of short circuit current, in the short time of the circuit breaker too late to break off, short circuit current and current square proportional to the electrical force will act on the transformer winding, the electrical force can be divided into radial force and axial force.
12-Jan-2022 view more
Environmental degradation have drawn global attention, where the demand for energy is growing at an impressive rate. To meet this demand, The generation supply mix is transitioning to natural gas plants, renewables, hydro power and energy storage.
23-Dec-2021 view more
Wind power, which converts the kinetic energy of wind energy into electricity without wreaking havoc on the environment, is considered one of the world's most promising
15-Dec-2021 view more
Transformer power loss is divided into iron loss and copper loss, iron loss is also called no-load loss, is its fixed loss, is the loss generated by the core (also known as core loss, and copper loss is also called load loss).
06-Dec-2021 view more
We are provider of innovative traction technologies for transportation，In the railway sector to provide innovative and energy-efficient technologies, for urban, intercity and high-speed rail infrastructure， Custom traction solutions are designed for optimal overall performance, energy efficiency and lowest operating costs.
09-Nov-2021 view more
Varelen cooperate with customers to use aircraft transportation, for transportation, we also according to their own shipping experience to provide customers with special packaging. In order to avoid any damage in the air transport process, all the photos of the reinforced packing were sent to the customer for confirmation. This professional attitude was highly recognized by the customer.
06-Oct-2021 view more
Transformer nameplate has a parameter called "impedance voltage," which is usually a percentage between 5 and 10, it is the transformer secondary winding short circuit, the primary winding voltage slowly increase, when the secondary winding short-circuit current reaches the rated current, the primary winding applied voltage (short-circuit voltage) and rated voltage ratio percentage.
29-Sep-2021 view more
K-factor transformers are transformers used to deal with harmonic generation loads. They are designed to withstand harmonic currents without exceeding the rated temperature of the insulated system.
09-Sep-2021 view more
Epoxy cast resin dry-type encapsulated transformer, it is self-extinguishing and can minimize the fire risk in public living places. The interior does not contain toxic chemicals
19-Aug-2021 view more
When adapting an individual solution for the mining industry, Varelen's transformer products make your equipment flexible, safe, reliable, and more environmentally friendly.
13-Aug-2021 view more
Paper industry projects are developing in the direction of green, low-carbon, resource-saving, and environmentally friendly, and oil-immersed transformers are also taking advantage of energy-saving.
03-Aug-2021 view more
