Westinghouse IRV User Manual


󰥕󰪥
 

󰥕󰪥


    

     
        
       
       
    
        
 
 
     
        
       
     
 
  
       
    
       
     
     
        
       
 

      
         
         
        

       
           
        

    



 
         
        
       

          
       
        
       
  


    
       
       
   
        

      
      
       
         
       
     
       
     
 
       
        
       
     
      
       
 
       
       
          
        
            
        
       
      
   
    
     
   
      
       
         
       
         
      

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Westinghouse IRV Specifications

General

Brand	Westinghouse
Model	IRV
Category	Relays
Language	English

Summary

APPLICATION

CONSTRUCTION AND OPERATION

Time-Overcurrent Unit (CO)

Explains the electromagnets and coil structure of the CO unit.

Indicating Contactor Switch Units (ICS/1 and ICS/T)

Describes the d-c clapper type device and its operation.

Directional Unit (D)

Details the induction cylinder type unit and its components.

Instantaneous Overcurrent Unit (I)

Explains the construction and operational principles of the I unit.

Auxiliary Switch (CS-1)

Describes the small solenoid type d-c switch.

CHARACTERISTICS

SETTINGS

Time Overcurrent Unit (CO) Settings

Details defining settings via tap and time dial position.

Instantaneous Reclosing

Describes factory adjustment for minimum contact opening time.

Instantaneous Overcurrent Unit (I) Settings

Specifies pickup current setting using the connector screw.

INSTALLATION

ADJUSTMENTS AND MAINTENANCE

Acceptance Check

Recommended checks for proper relay working order and settings.

Routine Maintenance

Periodic inspection, contact cleaning, and operational checks.

Calibration

Procedures for calibrating relay units if disturbed.