Date:
Document No:
Prepared By:
Concerned:
29.07.2023
BCFPP/EPP/AIRTP/1
TASK : ALTERNATORS INSULATION REZISTANCE TEST AND POLARIZATION INDEX REPORT
Date:
Unit. No:
Alt. No:
Temp:
Humid:
25.03.2021
#1
4560813
28 °C
27%
Stator test voltage: 1000V
STATOR
R 15 sec.
R 1 min.
R 10 min.
PI
L1-E (MΩ)
L2-E (MΩ)
1520
4270
9610
2,8
L3-E (MΩ)
1320
3000
4810
2,3
1560
3300
6100
2,1
L1-L2 (MΩ) L1-L3 (MΩ)
3330
8110
12200
2,4
2210
5770
12800
2,6
L2-L3 (MΩ)
2190
4620
8610
2,1
Rotor and Excitator test voltage: 500V
(+)..E (MΩ)
R 15 sec.
0,9
R 1 min.
0,9
PI
1,0
EXCITAT.
PI=R1m/R15s or R10m/R1m
TEMP CORRECTION: R40= k*R
ROTOR
R 15 sec.
R 1 min.
PI
(+)..E (MΩ)
10,2
13,7
1,3
COMMENT:
Measured minimum STATOR value @28°C is 1320 MΩ
(Temp.corrected R40) 1320*0,5=660 MΩ is GOOD for stator 660>100
Measured minimum ROTOR value @28°C is 0,9 MΩ
(Temp. Corrected R40) 0,9*0,5=0,45 MΩ is LESS for rotor 0,45<1,5
Tested
Controlled
Date:
Document No:
Prepared By:
Concerned:
29.07.2023
BCFPP/EPP/AIRTP/2
TASK : ALTERNATORS INSULATION REZISTANCE TEST AND POLARIZATION INDEX REPORT
Date:
Unit. No:
Alt. No:
Temp:
Humid:
24.03.2021
#2
4560814
27 °C
20%
Stator test voltage: 1000V
STATOR
R 15 sec.
R 1 min.
R 10 min.
PI
L1-E (MΩ)
L2-E (MΩ)
2500
8200
9300
3,3
L3-E (MΩ)
1700
4700
9500
2,8
2200
8300
12000
3,8
L1-L2 (MΩ) L1-L3 (MΩ)
5600
12800
13200
2,3
3600
10000
14600
2,8
L2-L3 (MΩ)
3600
6800
11200
1,9
Rotor and Excitator test voltage: 500V
(+)..E (MΩ)
R 15 sec.
11
R 1 min.
28
PI
2,5
EXCITAT.
PI=R1m/R15s or R10m/R1m
TEMP CORRECTION: R40= k*R
ROTOR
R 15 sec.
R 1 min.
PI
(+)..E (MΩ)
47
50
1,1
COMMENT:
Measured minimum STATOR value @27°C is 1700 MΩ
(Temp. Corrected R40) 1700*0,5=850 MΩ is GOOD for stator 850>100
Measured minimum ROTOR value @27°C is 5 MΩ
( Temp. Corrected R40) 11*0,5=5,5 MΩ is GOOD for stator 5,5>1,5
Tested
Controlled