Transformer equipment is widely used in the electrical power industry, radio engineering, and electronics and is a static device with several fixed windings for converting some parameters of alternating current to others (current, frequency, voltage, phases). If a short circuit occurs in the main circuit, it provides additional protection for connected devices from damage due to high current.
During the period of operation, it is possible that various breakdowns of electrical equipment may occur. Some defects do not have a strong impact on its performance, others require immediate shutdown and serious measures. Delay is fraught with unscheduled emergency shutdowns and loss of power to consumers.
A properly built technical condition monitoring system reduces unscheduled equipment breakdowns, the likelihood of shutdowns and increases the reliability and stability of electricity delivery to the consumer - industrial and socially important infrastructure facilities.
The Elektromotors company specializes inmaintenance and repair of transformers in Moscowand the Moscow region. We have 15 years of experience in providing specialized services, a powerful production and technical base, and qualified personnel for high-quality restoration of electrical installations.
What transformers do we repair?
Our company carries out repair and restoration work onpower transformers (high voltage)andvoltage transformerswith a power of up to 10 kVA and a weight of up to 2 tons.
Repair of voltage transformers
This type of equipment is used to convert high voltage to low voltage. The use of voltage transformers will ensure safe servicing of low-voltage measuring instruments, protection and alarm equipment.
Urgent repair work is necessary if the following faults are found:
- oil leakage, seal failure;
- discoloration of silica gel, contamination or wetting of the insulator.
Defects are eliminated by a qualified repair team by performing a set of works: tightening the porcelain tire fasteners, replacing silica gel, removing the air dryer, disassembling it, cleaning, drying, filling silica gel, final assembly, cleaning the body.
The list of measures to restore the voltage transformer is determined after inspection and diagnostics of the equipment and is recorded in the voltage transformer repair estimate.
Power transformer repair
This type of equipment is used to convert electricity and change the AC voltage (increase or decrease). They differ in power (depending on dimensions), number of windings (two- or three-winding), phases (single- or three-phase), installation location (external, internal), type of current conversion (lowering and increasing), type of insulation (oil, dry). The main application is on power lines and industrial plants.
Repair work on a power transformer is necessary in case of wear or defects in insulation, magnetic wires, failure of switches, clogging of inputs and outputs, which can occur when using defective parts, low-quality insulation, poor operating conditions, or poor-quality installation work.
Depending on the complexity and labor intensity, major, medium or current repairs of power transformers are distinguished.
Current repairs of transformers
Includes external inspection, elimination of identified defects, adjustment of fasteners, cleaning of the tank, insulation, adding oil, cleaning of sealing elements, cooling systems, shut-off valves, gas protection, and other work. Maintenance is performed at the equipment location, without moving to a repair shop or site. Repair duration is from 2 to 48 hours.
Medium transformer repair
Includes a complex of ongoing work; additionally, opening, removal of the tank or active part, repair of transformer terminals, inputs, switches, oil pumps, coolers, fans, taps and other parts, assembly, and testing are carried out. Work is carried out with shutdown and delivery of the converter to a workshop or workshop. The duration of the work depends on its complexity.
Overhaul of transformers
This type of repair is the most labor-intensive. It includes all previous work, as well as disassembly, partial or complete replacement of windings, insulation, pre-pressing, cleaning and painting of the tank, instrumentation check, oil change, assembly, testing. Usually performed after accidents or due to high wear of parts.
Our advantages
By ordering major repairs or routine maintenance of transformers from our company, you receive:
- competent, responsible and comprehensive approach to restoration work;
- full legal support of the transaction, drawing up an agreement, estimates;
- 12 month guarantee for work performed;
- prompt order fulfillment;
- favorable terms of cooperation and attractive prices.