AN ISO 9001:2008, ISO 14001:2004 & BS OHSAS 18001:2007 CERTIFIED COMPANY  
Products - Operation & Maintenance Manual
:: TABS ::
Battery Health Monitoring
      System
Operation & Maintenance
     Manual -
Foreword
bullet General Safety Measure
bullet Pre-Commissioning
Checks & Commissioning Procedure
bullet General Description of
Front Panel of The Charger
bullet Typical Specification of
The Chargers
bullet Functional Description of
Different Chargers
bullet Description of
Annunciation & Protection
bullet Maintenance Procedure
& Schedule
bullet Trouble Shooting
   
Trouble Shooting
 

TROUBLE SHOOTING PROCEDURE POWER CIRCUITS

OBSERVATION: No Voltage is obtained at the output of the Charger.
Disconnect the output load circuits and Switch ‘ON’ input Isolator.
 
Input Indicating Lamps are glowing?
NO YES
IS AC SUPPLY VOLTAGE AVAILABLE IS AC VOLTAGE AVAILABLE AT THE INPUT
OF THE RECTIFIER BRIDGE
NO YES NO YES
a) Check for input supply failure. a) Check the lamp ballast resistance (R) and lamps, . a) Check AC contactors a) Check Thyristors / diode by measuring the Anode – Cathode
resistance
b) Check the possible
fault which could be
an earth fault or short
circuit in the Charger.		   b) If even after energizing the Contactor no output results then check the transformer
secondary voltage.		 b) Check the electronic control circuit provided for automatic operations.
    c) If secondary voltage is O.K. then check the semiconductor protection fuses. c) Auto/Manual selector is selected in Manual Mode and potentiomete-rs are kept in minimum position. Adjust
potentiometers.
 
NOTE: It is very much desirable to have a ready stock of critical spares such as Thyristors, Diodes, HRC Fuses, Filter Capacitors, and Electronic Control Card etc. so as to replace the damaged components with minimum delay.