Product Introduction

SKCA Company is a professional manufacturer of transformers, various types of box-type transformers

Reliable Transformer Supply
for North America

34.5kV to 345kV solutions backed by a major manufacturing cluster in Nantong, China

345kV Power Transformers

Reliable supply for critical grid and data center infrastructure

Transformer Onsite/Inhouse Services

Electrical Construction & Power Infrastructure Services
CA-Based Electrical Contractor Delivering Nationwide Medium & Low Voltage Construction Services

transformer manufacturer

​Asia's Leading Power Equipment Hub
20+ transformer manufacturers
100+ electrical equipment companies
A fully integrated supply chain covering design, core components, assembly, and testing

  • 345kV Power Transformers 
  • 34.5kV Distribution Transformers

  • Custom-Engineered Solutions

  • Dry-type Transformers

  • Single-phase padmount transformers
  • Medium Voltage DryTypeTransformers 

    Distribution Transformer

Transformer Inspection

Comprehensive field inspection to assess transformer condition and operational reliability.​

  • External visual inspection of transformer tank, bushings, radiators, 

  • Check oil level indicators and pressure gauges

  • Inspection of cooling fans and pumps

  • Inspection of grounding connections

  • Inspection of cable terminations and connections

  • General condition assessment

Electrical Testing & Commissioning

Comprehensive electrical testing and commissioning services following maintenance or repair activities.

  • Insulation resistance testing (Megger)

  • Transformer Turns Ratio (TTR) testing

  • Winding resistance measurement

  • Power factor / dissipation factor testing

  • Functional checks of auxiliary systems

  • Verification of control circuits

  • Pre-energization inspection

  • Support during transformer 

Oil Processing & DGA

Transformer oil treatment and diagnostic testing to maintain insulation integrity.

 

  • Transformer oil sampling

  • Dissolved Gas Analysis (DGA)

  • Oil moisture content testing

  • Oil dielectric strength testing

  • Oil filtration and dehydration

  • Oil degassing and vacuum processing

  • Oil top-off or replacement

  • Oil contamination removal

Gasket Replacement

Replacement of aged or damaged gaskets to restore transformer sealing performance.

Manhole gasket replacement

  • Handhole gasket replacement

  • Radiator gasket replacement

  • Valve gasket replacement

  • Conservator gasket replacement

  • Breather gasket replacement

  • Re-torque of sealing bolts

  • Pressure check after installation

Leak Detection & Repair

Identification and repair of transformer oil leaks to prevent equipment damage and environmental risks.​

  • Leak source identification

  • Valve leak repair

  • Radiator leak repair

  • Flange sealing repair

  • Oil drain / sampling valve repair

  • Pipe connection sealing

  • Tank weld repair (minor leaks)

  • Oil containment cleanup if required

Bushing Replacement

Removal and replacement of damaged or degraded high-voltage and low-voltage bushings.

  • Safe removal of existing bushing

  • Inspection of bushing flange and insulation

  • Installation of new HV or LV bushing

  • Replacement of sealing gaskets

  • Oil level adjustment after installation

  • Torque verification

  • Functional inspection after installation

Cooling System Repair

Maintenance and repair of transformer cooling systems to ensure proper thermal performance.

  • Cooling fan replacement

  • Oil pump inspection and replacement

  • Radiator inspection and repair

  • Temperature control device inspection

  • Cooling circuit cleaning

  • Fan motor troubleshooting

  • Thermostat or sensor replacement

  • Cooling system operational testing

Renewable PV & BESS Engineering Services

Delivering Proven PV and BESS Engineering Solutions for Top-Tier Renewable Energy Clients Across the United States

BESS Installation & Integration

  • Battery cabinet placement

  • PCS installation

  • EMS system setup

  • DC cable routing

  • AC interconnection

Solar Plant Electrical Works

  • Inverter installation

  • Power stack replacement

  • Combiner box installation

  • AC collection system work

  • MV tie-in to substation

O&M & Technical Field Support

     On-site troubleshooting

  • Performance testing

  • Warranty support

  • Failure diagnosis

 

Long-Term Service Agreement (LTSA)

  • Preventive maintenance programs

  • Scheduled inspection and performance 

  • Remote monitoring coordination

  • Warranty support and OEM interface

  • Emergency response and corrective maintenance

  • System performance reporting

  • Lifecycle technical support

10kV Oil-immersed Distribution Transformer

This product adopts a fully sealed annular oil tank structure, preventing contact between the transformer oil and the surrounding air. Therefore, the transformer oil does not absorb moisture, thus maintaining insulation strength. Furthermore, because oxygen cannot enter the oil tank, aging of the insulating material is avoided, extending the product's service life.

110kV Dry-type Power Transformer

Resin-cast insulated transformers feature high reliability, good safety, flame retardancy, fire resistance, no pollution, easy installation, maintenance-free operation, compact structure, environmental friendliness, and mature technology. Currently, 35kV and below resin-cast insulated dry-type transformers are widely used in urban power systems.

YB Series Box-type Substation Series

YThe YB type box-type substation, also known as the European-style box-type substation, consists of four parts: high-voltage switchgear, low-voltage distribution cabinet, distribution transformer, and enclosure. As a new type of power supply and distribution equipment, it has many advantages over traditional civil engineering substations.B型

Certifications & Compliance

UL-certified and independently tested (including KEMA), ensuring compliance with North American standards and reliable performance.

Let's cooperate together

SKCA Company is a professional manufacturer of transformers, various box-type transformers, substations, and high and low voltage electrical equipment. The company has a highly qualified workforce, leading technology, advanced equipment, and a strict management system. Quality is the company's top priority, and the company strictly controls every aspect of production, from raw materials and personnel to equipment, environment, processes, and testing.

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