IPC C-103EM, Instruction Manual, Page: 8 / 20

INSTRUCTION MANUAL
C-103EM
Turbo Sleuth Ground Fault Locator
9 September 2002
5
Figure 3. Turbo Sleuth Control Panel
5. Operation.
5.1. See Figure 3. Turning the rotary “POWER” switch to the ON position energizes Turbo Sleuth.
The “POWER” switch is located on the panel door. Upon energizing the control panel the
“SYSTEM NORMAL”, green light turns on signifying that no ground faults are on the system and
the Turbo Sleuth is receiving control voltage. System connection will require operation of the
disconnect switch used at the point of insertion of the Turbo Sleuth in the plant power network.
5.2. Verify the Turbo Sleuth functionality by pushing the “TEST” button, and holding for the delay
time set on the DGF-CT-A Fault detector module. This causes the DGF-CT-A to trip. The green
light will turn OFF, the red “GROUND FAULT ACTIVE” light will turn on and the fans will
activate. This will confirm that control voltage is available, the DGF-CT-A is functioning and the
fans are operational.
5.3. Push the “RESET” button to reset the system to normal operational status. The red “GROUND
FAULT ACTIVE” light will go OFF, the green “SYSTEM NORMAL” light will turns ON, and the
fans will STOP. The Turbo Sleuth is now ready to monitor or Locate faults on the distribution
system. Close the system disconnect or breaker to begin the system testing.
5.4. When a ground fault occurs the potential between the system neutral and ground elevates to
the line to neutral voltage. This is reflected by the deflection of the voltmeter pointer on the
Turbo Sleuth panel. In addition to the voltage, the current is also being monitored. A deflection
of the ammeter pointer will indicate the magnitude of the fault current on the system. If the fault