B44066T0100E402_08 Datasheet, PDF (5/6 Pages) EPCOS – Film capacitors - Power Factor Correction Key components - Thyristor modules

Film capacitors – Power Factor Correction
Key components – Thyristor modules
Preliminary data
B44066T0100E402
TSM-LC100
Cautions and warnings
General
• Thyristor modules TSM series may only be used for the purpose they have been designed for.
• Thyristor modules TSM series may only be used in combination with appropriate pre-switched grid
separator device.
• Thyristor modules have to be projected in such a way that in case of any failure no uncontrolled high
currents and voltages may occur.
• The devices in operation have to be protected against moisture and dust, sufficient cooling has to be
assured.
Attention
Due to the switching principle of the thyristor module the power capacitors are permanently loaded to the peak
value of the grid voltage (DC voltage) even when switched off. Therefore the following rules have to be obeyed
in any case:
• For standard PFC-systems (400 V grid, without reactors) capacitors of 440 V nominal voltage have to be
used; for detuned systems (400 V grid) capacitors of 525 V nominal voltage have to be used.
• Due to the high voltage (2 × peak value of nominal voltage) that occurs, the discharge resistors of the power
capacitors have to be replaced by special types.
• In dynamic systems with TSM modules no fast discharge reactors may be used (reactor = DC-wise short
circuit).
• For standard PFC-systems without (de-)tuned filter reactors 2 special current limiting reactors are
mandatory per thyristor module. Further information on request.
• Thyristor modules in general have to be protected by superfast electronic fuses. Principles for dimensioning
have to be considered. Fuses in the system have to be marked.
• Due to the special switching, the PFC capacitors are fully loaded even when the particular step has been
switched off. Protection against contact has to be guaranteed. Warning signals in the systems are required.
• Even in switched off state no electrical isolation is achieved for electronic switches. Therefore parts of the
systems may not be touched after switching off the complete system before the capacitors have been
completely discharged.
FAILURE TO FOLLOW CAUTIONS MAY RESULT, WORST CASE, IN PREMATURE FAILURES OR
PHYSICAL INJURY.
U Please read cautions information about PFC capacitors and cautions as well as installation and maintenance instructions to ensure
optimum performance and prevent products from failing, and in worst case, bursting and fire, etc. The actual Product Profile is available at
www.epcos.com/publications.
Information given in the PFC-product profile and values given in the data sheet reflect typical specifications. You are kindly requested to
approve our product specifications or request our approval for your specification before ordering.
FK PC PM PFC
Please read Cautions and warnings and
Important notes at the end of this document.
Page 5 of 6
September 2008