Operation of current & voltage measurement cubicle with load break switch

1) Start-Up Procedure
2) Cut-Out Procedure

Start-Up Procedure

  • Close the section cover of Current-Voltage transformers.

  • Make sure that the auxilliary supply of the cubicle is energized.

  • Check the Load Break Switch’s gas pressure level is in normal state from both manometer and indicator lamps. ( If the gas pressure is in minimum level, then the operator can not do any kind electrical switching. In this case please contact with our technical service 7/24 )
  • Open the earthing switch.
  • Check the earthing switch’s position is opened from the mimic diagram and control window.
  • Charge the load break switch’s closing spring. If the cubicle is motorized, the spring will be automatically charged when the motor button is turned to the clockwise.
  • Close the Load Break Switch whether from the mechanical button over the mechanism or from the remote control cable with electrical buttons.
  • Check the load break switch is closed from the mimic diagram.

  • Check if the cubicle’s outgoing is energized by observing the VPI ( Voltage Presence Indicator )device.

Cut-Out Procedure

  • Check the Load Break Switch’s gas pressure level is in normal state from both manometer and indicator lamps. ( If the gas pressure is in minimum level, then the operator can not do any kind electrical switching. In this case please contact with our technical service 7/24 )

  • Open the Load Break Switch whether from the mechanical button over the mechanism or from the remote control cable with electrical buttons.
  • Check the load break switch is opened from the mimic diagram.
  • Check the cubicle is not energized by observing the VPI ( Voltage Presence Indicator ) device.
  • Close the earthing switch.
  • Check the earthing switch’s position is closed from the mimic diagram and control window.
  • Open the section cover of Current-Voltage transformers.
  • If you are required to move away from cubicle and do not want any other operator to energize the cubicle, then please take necessary precautions by locking the mechanisms by using the padlock over the cubicle and hanging the warning labels over the cubicle.