Megger MTO210, Инструкция по эксплуатации

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M
AVTMMTO210 Rev 7 Sept 2013
4
Input Voltage V1
These connections are used to connect a transformer winding for input voltage
measurement. The instrument will automatically calculate the resistance of this
input in combination with the current source.
The connectors are also used as a
path for current to flow during discharges. Voltage leads shall always be used in
conjunction with current leads.
Input Voltage V2
These connections are used to connect a second transformer winding for input
voltage measurement. The instrument will automatically calculate the
resistance of this input in combination with the current source. The connectors
are also used as a path for current to flow during discharges. Voltage leads
shall always be used in conjunction with current leads.
Earth/Ground Lug
This connection is used to connect a transformer under test to earth ground for
safety. The transformer and the MTO shall be at the power ground/earth
potential when being operated.
Emergency Shut Down Switch
This switch, when pushed will disable the source power supply and
automatically discharge the transformer. The instrument is continuously
monitoring this switch in the event of an emergency. If the switch is engaged,
no testing can commence.
Current Set Switch
This switch is used to control the amount of current the instrument will use to
test a transformer.
Symbol represents the maximum output level of test current.
Warning Beacon Connector
When the Warning Beacon is attached to the connector, the user will have a
more visible indication of the activation mode of the MTO.
Break Before Make INDICATOR
During testing, the unit will indicate disruptions in the current loop. During
testing of
On Load
tap changers, this indication will signify that a faulty break
before make condition has occurred.
USB Interface
Not accessible at this time