Atec Megger-DLRO-H200 - Manual (Page 3)

DLRO-H200
Micro-ohmmeter
Traditional measurement from ground. Injection is done through existing grounding
cable (earthing). Optional cable kit is needed. Available kits have 5, 10 or 15 m cables.
Hold probes/attach Kelvin clamps to CB and press trig/TEST button. A signal indicates
pass or fail and the result is logged in the unit for download to a PC.
Application examples
Circuit breaker testing
■ ■ Test of circuit breaker contacts
■ ■ Test of the connections to the breaker
testing of bus-bar
■ ■ Test of bus-bar joints
■ ■ Test of connections
Everywhere you need to test a low resistance/
high current connection
■ ■ Switches
■ ■ Disconnecting devices
■ ■ Safety ground connections
■ ■ Welding points
■ ■ Fuses
■ ■ Cables
Both Sides Grounded
Many utilities require safety grounds to remain in place
during station outages; therefore, the DLRO-H200 was
designed with this field safety constraint in mind.
Minimum time shall be spent in the substation and focus shall
be on the test rather than the equipment.
Equipment and methods that supports
DualGround™ testing are associated with
the DualGround symbol. This symbol
certifies the use of groundbreaking
technology and methods that enable a
safe, fast and easy workflow with both
sides grounded throughout the test.