ABB POLIM-C, Operating Instructions Manual

Page: 5 / 12

1HC0076149 AC | EN | Operating instructions |
5
Thanks to its high energy absorbing capability and mechanical strength, the POLIM®-C is especially
suited for overvoltage protection of
ƒ
transformers
ƒ
cables and cable sheat
ƒ
capacitors
ƒ
rotating machines
ƒ
apparatuses in railway applications
ƒ
other low- and medium-voltage apparatuses and systems
Variants of the surge arrester POLIM®-C suitable for the use in a.c. and d.c. systems are available.
The variants for d.c. systems differ from POLIM®-C surge arresters for a.c. systems by the appen-
dix
D as second letter in the complete term of classification (e.g. POLIM®-C 2.0 N D , POLIM®-C 2.0
H D ).
3.3 Technical data
The technical data, dimensions, weights and installation distances are specified in the following do-
cuments:
ƒ
surge arrester POLIM®-C .. N for applications in a.c. systems in the pamphlet 1HC0075874
ƒ
surge arrester POLIM®-C .. LB for applications in a.c. systems in the pamphlet PTHA 3272
ƒ
surge arrester POLIM®-C .. ND for applications in d.c. systems in the pamphlet 1HC0075875
ƒ
surge arrester POLIM®-C .. HD for applications in d.c. systems in the pamphlet 1HC0093986
ƒ
dimensional drawings of POLIM®-C
3.3.1 Technical data on the surge arrester
The rating plate, molded in silicone, on labels or engraved, contains the following data:
Data Meaning
POLIM®-C Type designation
I
n
10 kA Nominal discharge current I
n
I
s
.. kA Rated short-circuit current I
s
for 0.2 sec
POLIM®-C .. N
POLIM®-C .. I
POLIM®-C .. LB
Version for a.c. applications
Complete type designation with specification of the maximum permissible
continuous operating voltage U
c
POLIM®-C .. ND
POLIM®-C .. ID
POLIM®-C .. HD
Version for d.c. applications
Complete type designation with specification of the maximum permissible
continuous operating voltage U
c
U
c
.. kV Maximum permissible continuous operating voltage U
c
U
r
.. kV Rated voltage U
r
xx-20xx Date of manufacture: month - year
1 … Fabrication number