Film Capacitors – Power Electronic Capacitors
General purpose applications
B25360*
MKP AC HP
Cautions and Warnings
•
In case of dents of more than 1 mm depth or any other mechanical damage, capacitors must not
be used at all.
•
•
Check tightness of the connections/terminals periodically.
The energy stored in capacitors may be lethal. To prevent any chance of shock, discharge and
short-circuit the capacitor before handling.
•
Failure to follow cautions may result, worst case, in premature failures, bursting and fire.
Safety
•
Electrical or mechanical misapplication of capacitors may be hazardous. Personal injury or
property damage may result from bursting of the capacitor or from expulsion of melted material
due to mechanical disruption of the capacitor.
•
•
Ensure good, effective grounding for capacitor enclosures.
Observe appropriate safety precautions during operation (self recharging phenomena and the high
energy stored in capacitors).
•
•
Handle capacitors carefully, because they may still be charged even after disconnection.
The terminals of capacitors, connected bus bars and cables as well as other devices may also be
energized.
•
Follow good engineering practice.
Thermal load
After installation of the capacitor it is necessary to verify that maximum hot-spot temperature is not
exceeded at extreme service conditions.
Mechanical protection
The capacitor has to be installed in a way that mechanical damages and dents in the case are
avoided.
Storage and operating conditions
Do not use or store capacitors in corrosive atmosphere, especially where chloride gas, sulfide gas,
acid, alkali, salt or the like are present. In dusty environments regular maintenance and cleaning
especially of the terminals is required to avoid conductive path between phases and/or phases and
ground.
The maximum storage temperature is +85 °C.
Overpressure disconnector
To ensure full functionality of an overpressure disconnector, the following must be observed:
1. The elastic elements must not be hindered, i.e.
•
•
•
connecting lines must be flexible leads (cables)
there must be sufficient space for expansion above the connections
foldings crimps must not be retained by clamps.
2. Stress parameters of the capacitor must be within the IEC61071 specification.
Service life expectancy
Electrical components do not have an unlimited service life expectancy; this applies to self-healing
capacitors too. The maximum service life expectancy may vary depending on the application the
capacitor is used in.
CAP FILM P PM
December 2013
Please read Cautions and warnings and
Page 7 of 8
Important notes at the end of this document.
EPCOS [ EPCOS ]
