5
Instruction Leaflet
IL01301074E
Effective July 2016
Series NRX PT module installation and
operation instructions
EATON
www.eaton.com
Section 3. Operation
Switches are provided to disconnect each phase from the mains
(Figure 9). All three switches must be in the off (“O”) position before
performing dielectric testing of a system where the PT module is
connected. When the test is complete, all switches must be in the on
(“I”) position for the module to function as intended.
•
CAUTION
DIELECTRIC TESTING OF A SYSTEM CONTAINING A PT MODULE WITH THE
PHASE CONNECTED WILL DAMAGE THE PT MODULE. DISCONNECT ALL
OF THE PHASES FROM THE MAINS (BY SELECTING “0”) BEFORE TESTING.
AFTER TESTING, RETURN ALL PHASE SWITCHES TO THE “I” POSITION.
Figure 9. Line phase switches.
:
Line phase switches
