Power Network Application Trainer
– Insulation Analysis
217
8.2 Insulation resistance measurement on the transformer
–
regular condition
Note: Maximum applied test voltage to the tested transformer is 1kV!
Do not apply higher test voltage!
Exercise 1.1: Insulation resistance test (Spot test)
between primary and secondary
side of transformer
Figure 121-3: Transformer insulation resistance measurement setup (primary
– secondary side)
Method used
Simulated condition
Expected result
R
ISO
=17,5 GΩ
R
ISO
=18,1 GΩ
Table 75-3: Transformer insulation resistance test setup/result presentation (primary
– secondary side)
Measuring procedure
1. Under
MAIM MENU
MEASUREMENTS
menu select
Insulation Resistance
Test
measurement function
Summary of Contents for MI 3298
Page 55: ...Power Network Application Trainer Earthing Grounding network impedance measurement 55 ...
Page 56: ...Power Network Application Trainer Earthing Grounding network impedance measurement 56 ...
Page 124: ...Power Network Application Trainer Earthing Grounding network impedance measurement 124 ...
Page 228: ...MI 3290 Earth Analyser 228 ...
Page 229: ...MI 3280 Digital Transformer Analyser 229 ...
Page 230: ...MI 3280 Digital Transformer Analyser 230 ...
Page 231: ...MI 3250 MicroOhm 10A 231 ...
Page 232: ...MI 3205 TeraOhmXA 5kV 232 ...