Comprehensive Circuit Breaker Solutions

CREDSI is committed to providing top-notch circuit breaker services that exceed your expectations. We are knowledgeable and experienced in handling all service requirements related to commercial circuit breakers, including:

• Preventive Maintenance
• Reconditioning
• Refurbishment
• Retrofitting
• General Repair
• Contact Refurbishment
• Solid-State Programmer Repair and Calibration
• Spare Circuit Breakers and Parts
• Root Cause Failure Analysis
• Circuit Breaker Maintenance Planning
• Outage Test Services
• Circuit Breaker Training and Procedure Development

• Preventive Maintenance
• Reconditioning
• Refurbishment
• Retrofitting
• General Repair
• Contact Refurbishment
• Coil and Solenoid Repair
• Solid-State Programmer Repair and Calibration
• Spare Circuit Breakers and Parts
• Consulting, Root Cause Analysis

• Circuit Breaker Maintenance Planning

• Outage Test Services
• Circuit Breaker Training and Procedure Development

• General Cleaning
• Inspection for Defects or Damage
• Dressing the Contacts and Adjusting for Proper Over-Travel and Pressure
• Checking for Proper Mechanical Operation and Lubricating Where Necessary
• Checking the Auxiliary Devices for Proper Operation
• Complete Electrical Testing, Including:
  • Insulation Resistance Tests
  • Contact Resistance Tests
  • Overcurrent Trip Device Tests (Primary or Secondary Injection, Depending on Overload Type) – Low voltage only
  • Auxiliary Device Tests (Anti Pump, Undervoltage Pickup or Dropout, Bell Alarm, Etc.)
  • Timing Tests ( Medium-Voltage Only)

This process is a reliable, preventive maintenance type of circuit breaker service, but its value depends on the breaker’s condition.

• General Cleaning
• Inspection for Defects or Damage
• Dressing the Contacts and Adjusting for Proper Over-Travel and Pressure
• Checking for Proper Mechanical Operation and Lubricating Where Necessary
• Checking the Auxiliary Devices for Proper Operation
• Complete Electrical Testing, Including:
  • Insulation Resistance Tests
  • Contact Resistance Tests
  • Overcurrent Trip Device Tests (Primary or Secondary Injection, Depending on Overload Type)
  • Auxiliary Device Tests (Anti Pump, Undervoltage Pickup or Dropout, Bell Alarm, Etc.)

This process is a reliable, preventive maintenance type of circuit breaker service, but its value depends on the breaker’s condition.

• Complete Disassembly and Inspection of the Operating Mechanism
• Disassembly of the Contact Pivots
• Cleaning of the Operating Mechanism and Contact Pivots
• Complete Lubrication of the Mechanism and Contact Pivots During Reassembly
• General Cleaning and Inspection of Breakers, Including All Other Ancillary Parts
• Complete Testing After Reassembly

This service will bring the circuit breaker back to a good operating condition and indicate the breaker’s physical condition.

• Complete Disassembly and Inspection of All Circuit Breaker Components to Their Smallest Allowable Parts
• Silver Plating of Copper Parts as Necessary at an Additional Cost
• Zinc Plating of All Previously Plated Components (All Hardened Parts Will Be Baked to Eliminate Hydrogen Embrittlement)

• Cleaning and Painting of All Previously Painted Parts

• Complete Cleaning of All Breaker Components
• Complete Lubrication of All Pivots During Reassembly
• Complete Testing After Reassembly

• General Cleaning

• Inspection for Defects or Damage
• Dressing the Contacts and Adjusting for Proper Over Travel and Pressure
• Checking for Proper Mechanical Operation and Lubricating Where Necessary
• Checking the Auxiliary Devices for Proper Operation
• Complete Electrical Testing Including:
  • Insulation Resistance Tests
  • Contact Resistance Tests

  • Timing Tests

  • Anti-Pump Tests

This process is a reliable, preventive maintenance type of circuit breaker service, but its value depends on the breaker’s condition.

• Complete Disassembly and Inspection of the Operating Mechanism
• Disassembly of the Contact Pivots
• Cleaning of the Operating Mechanism and Contact Pivots
• Complete Lubrication of the Mechanism and Contact Pivots During Reassembly

• General Cleaning and Inspection of the Breaker, Including All Other Ancillary Parts

• Complete Testing After Reassembly

This service will bring the circuit breaker back to a good operating condition and indicate the breaker’s physical condition.

• Complete Disassembly and Inspection of the Operating Mechanism
• Disassembly of the Contact Pivots
• Cleaning of the Operating Mechanism and Contact Pivots
• Complete Lubrication of the Mechanism and Contact Pivots During Reassembly

• General Cleaning and Inspection of the Breaker, Including All Other Ancillary Parts

• Complete Testing After Reassembly

• Complete Disassembly and Inspection of All Circuit Breaker Components to Their Smallest Allowable Parts
• Silver Plating of Copper Parts as Necessary at an Additional Cost
• Zinc Plating of All Previously Plated Components (All Hardened Parts Will Be Baked to Eliminate Hydrogen Embrittlement)
• Cleaning and Painting of All Previously Painted Parts
• Complete Cleaning of All Breaker Components
• Complete Lubrication of All Pivots During Reassembly
• Complete Testing After Reassembly
• Vacuum circuit breaker will include a vacuum interrupter integrity test

For vacuum breakers, the tests are similar to the medium to high voltage circuit breakers, including the vacuum interrupter integrity test or hi-potential testing.

All of the previously mentioned services include incidental repairs but do not include significant component replacement (i.e., arc chutes, pole bases, contact assemblies, operating mechanisms, control devices, etc.). If life extension is the customers’ objective, refurbishment would be the procedure of choice.

Our experience is that control wiring is usually in good condition unless the circuit breaker has been mishandled. Therefore, rewiring is not performed with our refurbishment program. The wiring integrity will be tested; if the breaker requires rewiring, it would be an additional cost item.

All Services include incidental repairs but do not include significant component replacement (i.e., arc chutes, pole bases, contact assemblies, operating mechanisms, control devices, etc.). If life extension is the customers’ objective, refurbishment would be the procedure of choice.

Our experience is that the control wiring is usually in good condition unless the wiring is defective or the circuit breaker has been mishandled. Therefore, rewiring is generally not performed with our refurbishment program. The wiring integrity will be tested; if the breaker requires rewiring, it would be an additional cost item.

To learn more about our services and pricing, call or email us. Our team is here to meet your needs. We also offer circuit breaker training programs that cover preventive maintenance and reconditioning. For more details, get in touch with us.

To learn more about our services and pricing, call or email us. Our team is here to meet your needs. We also offer circuit breaker training programs for preventive maintenance and reconditioning. For more details, get in touch with us.