Delta 4000 Instruction Manual download pdf (Page 61)

Delta 4310 User Interface

81331 Rev 01 Nov 2010

Bushing Hot Collar

Tests 15 to 26 - These tests measure the outer shell insulation of the bushings,

including surface leakage and leakage current from the bushing surface through

the insulating material to the center conductor. A conductive strap is placed

around the bushing, below one of the skirts and connected to the HV lead. The

Red lead is connected to the bushing conductor. Test mode is GST-GND.

Multiple hot collar tests can be performed on each bushing. For each test, the

location of the strap should be clearly indicated on the form.

Multiple Quick Tests

Standards measurements may be complemented with additional measurements

executed from the Multiple Quick Test sub-form selected as a new test or as

manual measurements in the standard test forms. Check “Manual” in the select

test boxes and a Multiple Quick Test table will be added at the end of the form.

In the field "INSULATION TESTED" you enter information on what to be

tested, TEST MODE set/change the test mode, SUPPRESS set/change noise

suppression mode.

It is also possible to use Delta Control for controlling the test by clicking the

Delta Control button (above the table) in PowerDB form, Delta Control will

send all data to be stored in the Multiple Quick Test table.

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Delta 4000 Instruction Manual Page 61