DL2482 datasheet(38/82 Pages) OSRAM

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3. Circuits

Economical long-life light sources with plug-in bases.

Compact Fluorescent Lamps OSRAM DULUX®

Technical Guide

3.2.2 Compensation

The need to compensate for the reactive power depends on the technical connection

conditions of the electricity supply company. Compensation for reactive power is

covered by the EN 61000-3-2 standard (see 9.1.2). Compensation can be provided on

an individual basis per luminaire, for groups of luminaires or at a central location.

Generally, electricity consumption should involve a power factor of between Cos

ϕ 0,9

(capacitive) and 0,8 (inductive). Depending on the type of system, which obviously com-

prises more inductive loads than just low-voltage discharge lamps, one has to decide

which type of compensation should be used:

• Individual compensation per luminaire

• Group compensation

• or central compensation.

The capacitor must be connected in parallel with the mains terminals. Compensation

with a series capacitor is possible in certain circumstances but, except in the case of

OSRAM DULUX® L 36 W, is not recommended since the permissible current and

power limits cannot be reliably maintained if the permissible tolerances for the capaci-

tors, control gear and lamps are fully utilised.

The limits for exploiting the permitted tolerances (close tolerance) for the capacitance

of the series capacitor (± 2 %) and the impedance of the choke (± 1,5 %) or lamps

cannot be reliably met.

Mains parallel capacitors are not permitted in existing audio-frequency remote control

systems operating at high frequency. They are suitable only for compensation with

series capacitors.

Compensation is not required if the lamps are operated with electronic control gear.

The following table shows the capacitance values for the various lamps.

For Cos phi = 0,95; Dielectric strength of the capacitors 250 V ac; Capacitance tolerance ± 10%

For Cos phi = at least 0,95; Dielectric strength of the capacitors 450 V ac

To guarantee the prescribed operating and preheating values,

capacitors and control gear with narrow tolerances (± 2 %

and ± 1,5 % respectively) are needed for series compensation.

Please refer to the catalogues of the major manufacturers.

24-26 W CCG for CFLs (2,7

µF for 18 W CCG for fluorescent lamp).

Parallel compensation1)

Series compensation2)

230V/50Hz

OSRAM DULUX® S 5 W

2.2

OSRAM DULUX® S 7 W

2.1

OSRAM DULUX® S 9 W

2.0

OSRAM DULUX® S 11 W

1.7

2x OSRAM DULUX® S 5 W

1.9

2x OSRAM DULUX® S 7 W

1.6

2x OSRAM DULUX® S 9 W

1.2

OSRAM DULUX® D 10 W

2.2

OSRAM DULUX® D 13 W

1.8

OSRAM DULUX® D 18 W

2.2

1.7

OSRAM DULUX® D 26 W

3.2

2.5 3)

OSRAM DULUX® T 13 W

1.8

OSRAM DULUX® T 18 W (IN)

2.3

1.7

OSRAM DULUX® T 26 W (IN)

3.3

2.5 3)

OSRAM DULUX® L 18 W

4.2

2.7

OSRAM DULUX® L 24 W

3.6

2.7

OSRAM DULUX® L 36 W

4.4

3.4

2 x OSRAM DULUX® L 18 W

3.4

OSRAM DULUX® F 18 W

4.2

2.7

OSRAM DULUX® F 24 W

3.6

2.7

OSRAM DULUX® F 36 W

4.4

3.4

2 x OSRAM DULUX® F 18 W

3.4

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