Megger MTO106, Руководство пользователя

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MTO106 ZP-BN01E BN034794AE
4 SETuP AND OPERATION
4
S
etup and operation
4.1 Preparations
Important
Always follow the safety instructions in
Chapter 2 of this manual. Always comply
with local safety regulations.
▪
use the Megger supplied safety ground lead to connect
the MTO106 protective conductor terminal directly to
local station earth (Ground).
Note If using separate voltage and current leads
instead of the standard Kelvin-type leads,
do not clip potential leads on to the current
leads, since this will add contact resistance
to the measurement. Potential leads should
always be placed inside (between) current
leads
4.2 Testing Single and Dual
windings
1]
Make sure that the test current switch is set
to “OFF”.
2]
Connect the Kelvin-type test leads to the
MTO106, see figures below.
The leads marked "Generator" to the "CUR-
RENT OUTPUT" terminals of corresponding
colour and the leads marked "P/Meas" to
"R1 SENSE" terminals of corresponding colour.
If using separate voltage (sense) and current
leads, connect them to the corresponding
"CURRENT OUTPUT" and "R1 SENSE" termi-
nals.
For Dual windings:
Connect the second channel sense leads to
the terminals "R2 SENSE" of corresponding
colour.
Use a jumper cable to connect two phases
(according to table 1 on next page) for simul-
taneous winding measurement.
3]
Connect the test lead Kelvin clamp to the
test object (e.g. transformer) according to
the required configuration.
4]
Once all the precautions and steps of sections
"2 Safety" on page 8 and "4.1 Prepara-
Connection diagram for single winding test. Connection diagram for dual winding test.