Preparing The Oil Test Set; Operation; Oil Sampling; Preparing The Oil Test Vessel - Megger OTS60SX Guia Del Usuario

Preparing the Oil Test Set

Ensure that the instrument is properly earthed. The test set must
be connected to a socket (receptacle) with a protective earth
(ground) conductor.
Before connecting the instrument to the mains power supply,
ensure the voltage selector located on the mains input panel is
set to the required voltage. The correct fuse value should be
fitted for the supply voltage (See Specification). The fuse
holders are located next to the supply inlet.
Power cord
If the power cord plug is not suitable for your type of socket
outlets, do not use an adaptor. You should use a suitable
alternative power cord, or if necessary change the plug by cutting
the cord and fitting a suitable plug.
The colour code of the cord is:
Earth (Ground)
Neutral
Phase (Line)
If using a fused plug, a 3 Amp fuse to BS 1362 should be fitted.
Note: A plug severed from the power cord should be destroyed,
as a plug with bare conductors is hazardous in a live socket
outlet.

Oil Sampling

The relevant test specification will give advice on the best
methods to use when sampling oil. Contamination of the oil may
lead to misleading results. Always run off a small amount of oil
before sampling and ensure that the flow of oil is steady.

Preparing the Oil Test Vessel

Optional vessels are available for testing to national
specifications
specifications require stirring of the oil sample as well as different
test electrode shapes. Once the correct vessel has been chosen
for the required test the electrode gap should be set. This is
achieved by adjusting the threaded nut on the side of the vessel.
Small adjustment of the gap can be made by hand tightening the
nuts and rotating the spindle. A slot is provided on the end of the
spindle for this purpose.
A set of individual 0,5mm feeler gauges is provided for accurate
Yellow / Green measurement of the gap. Gauges can be combined to measure
from 1mm to 4mm. (see page 12)
Blue
Clean the vessel in accordance with the instructions given in the
Brown relevant test specification. Allowing space for the lid to be fitted,
fill the vessel with the oil sample. The amount of oil required will
depend upon the type of lid used. Load the vessel in the test
chamber, connecting the motor power cable, if fitted, and
carefully shut the door so that the safety interlock switch
operates.

Operation

Accessories).
(See table and Some
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