Can Tho Transformer Repair – Quanganhcons: Professional and Reliable

Quanganhcons in Can Tho specializes in providing repair and construction services for transformers, medium voltage and low voltage electrical systems, and substations up to 35kV. The company ensures high operational efficiency by using equipment with clear origins and professional processes.

Transformer Repair Services

Transformer Repair Services

Quanganhcons provides transformer repair services with a commitment to using materials of clear origin. The company specializes in repairing transformers and industrial electrical equipment, ensuring high operational efficiency. Quanganhcons is capable of surveying, testing transformer oil, and inspecting related electrical equipment, serving factories and industrial zones in Can Tho.

Transformer repair is an important part of maintaining and improving transformer performance, including repair levels: minor maintenance, periodic major maintenance, and restoration overhaul.

Minor Maintenance

Minor maintenance involves performing checks and small repairs without dismantling the entire transformer. This process usually includes cleaning the casing and external details, draining sediment from the oil tank, and checking components such as gaskets, valves, cooling, and lightning protection systems. Additionally, replacing desiccant materials like silica gel is necessary to maintain stable operation.

Periodic Major Maintenance

Periodic major maintenance requires disassembly to thoroughly inspect and repair the internal components of the transformer. This process may involve drying the transformer to improve insulation and ensure synchronized operation of components. This is an important step in maintaining transformer efficiency.

Restoration Overhaul

Restoration overhaul focuses on repairing severe damages, such as rewinding or replacing damaged coils, repairing the core, and restoring insulation of the laminated sheets. This is a crucial stage to restore the transformer to its best condition and ensure sustainable operation.

The transformer repair process includes steps: disconnecting the power source, draining all oil, dismantling to access faulty parts, performing necessary repairs or replacements, and then conducting assessment tests such as checking turn ratio, insulation resistance, oil resistivity, and load testing. These steps ensure the transformer operates safely and to standards.

Besides repair services, periodic maintenance is necessary to sustain transformer performance. This process includes inspecting and cleaning components like gaskets, insulators, and welds, along with oil sampling for quality checks. Transformer maintenance also involves maintaining tap changers and addressing moisture causes, especially for dry transformers.

Proper transformer repair and maintenance techniques help reduce the risk of major failures and extend equipment life, ensuring optimal performance for industrial and distribution electrical systems.

Substation Construction and Electrical Systems

Quanganhcons provides comprehensive construction services for substations up to 35kV, including mounted, gantry, single-tower, ground, and integrated kiosk substations. The company uses oil and dry transformers from reputable brands such as Siemens and ABB, with full approvals and certifications from the power sector.

Substation and electrical system construction is a complex process demanding high precision to ensure safety and operational efficiency. Based on reputable technical studies, this process involves the following important steps:

1. Site Survey and Construction Planning: This initial phase involves checking the terrain, evaluating the location for the substation, and high voltage underground cable routes. Experienced technicians conduct surveys, take precise benchmarks, and work with investors to address design changes if necessary ([1], [2], [3]).

2. Procurement and Quality Checking: This vital step ensures that transformers, switches, and insulation materials meet technical standards before installation ([3]).

3. Substation Foundation and Underground System Construction:

• Excavate foundations for the substation and trench middle voltage cables.
• Install grounding systems, classify and ensure safety (safe grounding, lightning protection grounding, operational grounding) ([1], [4]).

1. Equipment Installation and Fixation: Ensuring accuracy when pouring concrete foundations, installing transformers, and devices like switches, operation chairs, and pulling medium voltage cables ([1], [2]).

2. Grounding System Installation: Secure grounding, welding the grounding rods to the highest quality standards for prolonged safety ([2], [4]).

3. Testing, Experimentation, and Calibration: Conduct electrical equipment experiments, checking connection diagrams to meet technical criteria such as voltage and current ([1], [2], [3]).

4. Acceptance Testing, Commissioning, and Handover: Perform internal acceptances up to energization and observe stable operation before official handover ([1], [2], [3]).

This construction process is carried out synchronously, from survey to operation, ensuring high performance and absolute safety of the electrical system thanks to a professional workforce and strict adherence to standards.

Strictness in each step of substation and electrical system construction helps ensure stability and sustainability for the electrical system, enhancing reliability for medium and low-voltage systems.

Electrical Equipment Maintenance and Servicing

In addition to repair, Quanganhcons also offers electrical equipment maintenance and servicing to ensure long-term performance for industrial electrical systems. The professional technicians at Quanganhcons are committed to providing reliable services through regular power surveys and transformer oil testing.

Electrical equipment maintenance and servicing is an indispensable process in the construction and energy sector, especially in Vietnam’s industrial environment. This technical process includes many specific steps to ensure the electrical system always operates safely and efficiently.

First, conducting periodic equipment inspections is a basic but extremely important step in maintenance. During this phase, technicians assess the overall condition of the equipment to detect early signs of malfunctioning such as leakage currents, wear, cracking, rusting, or deformation of parts. Thoroughly checking cable joints, operating temperature, noise, and insulation effectiveness helps prevent issues.

Moreover, safely disconnecting the power source before maintenance is essential to ensure industrial electrical safety. Using electrical locks or circuit breakers are common methods to protect those performing the work.

Next, cleaning the switchboard and surrounding equipment is necessary to remove dust, grease, and rust. Tightening bolts, re-connecting and lubricating moving joints help increase the lifespan and efficiency of the equipment.

Replacing faulty or performance-reducing electrical components is another important step to ensure stable system operation. A system with optimal parts minimizes production interruption risks.

Regular electrical testing and trials ensure that all systems function appropriately. This includes measuring resistance, testing protective relays, and checking control devices like ATS or capacitor controllers.

After completing the work, documentation and reporting are indispensable. These documents help manage, monitor maintenance effectiveness, and adjust plans timely.

Finally, continuous staff training is also an important factor in updating skills and knowledge, enhancing the quality of electrical equipment maintenance and servicing.

Overall, performing regular electrical equipment maintenance and servicing not only prolongs equipment life but also ensures worker safety, thereby optimizing the performance of industrial electrical systems.

Quanganhcons provides comprehensive solutions for technical needs and investments in the repair, construction, and maintenance of substations and industrial electrical systems. Ensuring quality and reliability in each service improves the efficiency and lifespan of equipment.

Contact Quanganhcons for advice and support: Hotline +84 9 1975 8191.

Quanganhcons provides repair, construction, and maintenance services for substations, medium voltage, low voltage, and industrial electrical systems, with a commitment to quality and equipment with clear origins.