Automatic Transfer Switch Maintenance

Automatic transfer switches (ATS) are essential components of emergency power supply systems (EPSS), enabling seamless switching between utility and backup power. Alpine Power Systems provides professional ATS maintenance and testing services nationwide to help ensure reliable operation when you need it most.

Our Expertise

Automatic transfer switches work continuously to transfer electrical loads between primary and backup power during outages. Most ATS failures stem from lack of preventive maintenance, which can lead to malfunctions and even full system failures if left unaddressed. Regular maintenance reduces these risks, enhances reliability, and extends the service life of your ATS, helping you avoid costly downtime and emergency repairs.

Alpine’s certified technicians have the experience and tools necessary to maintain, test, repair, and upgrade ATS units across industries and applications.

Our Services Include

Comprehensive Preventative Maintenance

Customized maintenance programs are available on monthly, quarterly, semi-annual, or annual schedules to fit your facility needs.

Infrared Scanning & Thermal Imaging

Thermal scanning identifies overheating components and potential failures before they interrupt operation.

Controlled Inspection & Component Testing

Our technicians will:

• De-energize switchgear when safe to do so

• Remove arc chutes and pole covers for internal visual assessment

• Test and recalibrate AC sensing and time delay functions

• Inspect main and control relay contacts for erosion or heat discoloration

• Check cable and control wire connections for integrity and proper torque

Cleaning & Contaminant Removal

Dust, grime, and moisture are removed from the ATS enclosure using approved non-conductive methods to prevent corrosion and electrical issues.

Functional Operation Checks

Manual operation checks confirm proper contact alignment and wiping action, and simulated power failures ensure the ATS transfers load as expected.

Reporting & Recommendations

After testing, Alpine provides documented results and maintenance recommendations, including any corrective actions if issues are identified.

Why ATS Maintenance Matters

Automatic transfer switches monitor utility power continuously and actuate backup power within seconds when utility voltage falls below threshold. Without proper inspection, testing, cleaning, and calibration, an ATS may fail when called upon, leaving your facility without critical backup power.

Routine maintenance helps:

• Prevent electrical contact wear, corrosion, or overheating

• Maintain optimal sensing and transfer functions

• Identify issues before they cause system failure

• Preserve the overall reliability of your emergency power system

• Support compliance with electrical codes and safety standards

ATS Compliance Standards

Alpine’s maintenance services follow guidance from NFPA 110 and other applicable codes, which outline required inspection and testing practices for transfer switches and paralleling gear. These include:

• Checking connections

• Inspecting for evidence of overheating or excessive contact erosion

• Removing dust and dirt

• Replacing contacts when necessary

• Verifying operating controls and system functionality

Maintaining ATS equipment per these standards helps ensure continued compliance and operational readiness.

Why Choose Alpine Power Systems

• Certified technicians experienced in ATS systems and critical power protection

• Nationwide service reach with flexible scheduling

• Detailed preventative maintenance tailored to your equipment and usage patterns

• Integration with generator services, fuel testing, and load bank testing

• Documentation to support compliance and facility records

• A trusted partner for critical power infrastructure needs

Certifications & Compliance

Alpine Power Systems holds ISO 9001 (Quality), ISO 14001 (Environmental), and ISO 45001 (Safety) certifications and complies with ITAR and NIST SP 1800-171 standards. These designations reflect our commitment to quality, safety, and operational excellence in every service we provide.

Contact Us

Alpine Power Systems’ experienced technical support and sales team is ready to assist with your automatic transfer switch maintenance and testing needs.