MMKP 386
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Revision: 19-Mar-13
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Document Number: 28163
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SUB-GROUP C2
4.11.3 Final measurements Voltage proof = U
RDC
for 1 min within 15 min
after removal from testchamber
No breakdown of flashover
Visual examination No visible damage
Legible marking
Capacitance |C/C| 1 % of the value measured in 4.11.1.
Tangent of loss angle Increase of tan
0.001 for: 100 nF < C 470 nF or
0.0015 for: C 470 nF
Compared to values measured in 4.11.1
Insulation resistance 50 % of values specified in section
“Insulation Resistance” of this specification
SUB-GROUP C3A
4.12.1 Endurance test at 50 Hz
alternating voltage
Duration: 2000 h
Voltage: 1.25 x U
RAC
at 85 °C
4.12.1.1 Initial measurements Capacitance
Tangent of loss angle at 100 kHz
4.12.1.3 Final measurements Visual examination No visible damage
Legible marking
Capacitance |C/C| 5 % compared to values measured
in 4.12.1.1
Tangent of loss angle Increase of tan
0.001 for: 100 nF < C 470 nF or
0.0015 for: C > 470 nF
Compared to values measured in 4.12.1.1
Insulation resistance 50 % of values specified in section
“Insulation Resistance” of this specification
SUB-GROUP C4
4.2.6 Temperature characteristics
Initial measurements
Intermediate measurements
Final measurements
Capacitance
Capacitance at - 55 °C
Capacitance at 20 °C
Capacitance at + 85 °C
Capacitance
For - 55 °C to + 20 °C:
+ 1 % |C/C| 3.75 % or
for 20 °C to 105 °C:
- 6 % |C/C| 0 %
As specified in section “Capacitance” of this
specification.
Insulation resistance As specified in section “Insulation
Resistance” of this specification
4.13 Charge and discharge 10 000 cycles
Charged to U
RDC
Discharge resistance:
4.13.1 Initial measurements Capacitance
Tangent of loss angle at 100 kHz
4.13.3 Final measurements Capacitance |C/C| 1 % compared to values measured
in 4.13.1
Tangent of loss angle Increase of tan
0.001 for: 100 nF < C 470 nF or
0.0015 for: C > 470 nF
Compared to values measured in 4.13.1
Insulation resistance 50 % of values specified in section
“Insulation Resistance” of this specification
GROUP C INSPECTION REQUIREMENTS
SUB-CLAUSE NUMBER AND TEST CONDITIONS PERFORMANCE REQUIREMENTS
R
U
RDC
5 x C dU/dt
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