External Damped Capacitive Impulse Voltage Divider0 pages

TYPE CS
Damped Capacitive Impulse Voltage Divider

APPLICATIONS
The damped-capacitive impulse voltage dividers series CS can be used to
measure full lightning impulse voltages, tail chopped impulse voltages, switching
impulses and AC voltages. They meet all requirements of IEC 60060-2 (1994), in
particular those with respect to measuring accuracy and step response. At the
same time they can be used as a basic load for impulse voltage generators.

DESIGN
Depending on the voltage rating, the high voltage part of the dividers consists of
1, 2 or 3 oil-filled capacitors which are housed in glass fiber reinforced cylinders.
The damping resistance is placed as an external resistor on top of the uppermost
capacitor.
Above 600 kV (included) rated lightning impulse voltage the dividers are equipped
with a toroidal high voltage electrode to guarantee corona-free operation.
The secondary unit consists of a capacitor and a damping resistor of low
inductance both arranged in a coaxial design. The unit is fixed at the bottom of
the divider and can easily be disassembled. The voltage divider is erected on a
four-arm base equipped with castors.
CS 800-670

TECHNICAL DATA
The type designation consists of the characters CS and two figures, e.g. CS 400-1000 the first figure represents
the max. lightning impulse voltage in kV, the latter the capacitance in pF.
Type

Rated impulse Rated impulse
voltage S.I.
voltage L.I.
250 / 2500 s
1.2 / 50 s
kV

CS 100-1000
CS 200-1000
CS 300-1000
CS 400-1000
CS 500-500
CS 600-500
CS 700-500
CS 800-670
CS 900-670
CS 1000-670

kV

100
200
300
400
500
600
700
800
900
1000

100
200
280
320
400
500
560
650
700
750

Rated AC
voltage,
50/60 Hz,
cont. duty
*
kV RMS
50**
50**
50**
100
70**
140
140
210
210
250

Capacitance

Damping
res. ext.

Clearance to
walls and
ceiling

pF
1000
1000
1000
1000
500
500
500
670
670
670

130
130
130
130
270
270
270
230
230
230

m
1.5
1.5
1.5
1.5
2.3
2.3
2.3
3.5
3.5
3.5

* with adequate additional secondary part type SEK W.
** higher voltages possible only with additional top electrode

a brand of
Haefely is a subsidiary
of Hubbell Incorporated.

Haefely has a policy of continuous product improvement. Therefore we reserve the right to change design and specification without notice.

LL_TypeCS_0711 – 1/2