Megger INGVAR, User Manual

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28 ZP-BH05E BH0654BE
6 HOW TO INSTALL INGVAR
Standard multi-cable sets
Cable sets consist of up to three pairs of 120 mm 2 cables in parallel. At each end there is an end-bar intercon-
necting the cables. The bar also enables single bolt connection to INGVAR and the test object. See figure below.
Impedance of the cable set is very dependent on how cables are arranged. See section How to arrange the cable
sets
Length 2 x 0.5 m (distance to test object 0.5 m)
Number
of cables Total cross section
area Impedance
cables twisted
(mΩ) Impedance
cables not
twisted (mΩ) Impedance
cables 1 m
apart (mΩ) Max. current
in 20 sec. (A) Max. cont.
current (A) Weight
(total set)
(kg) Article
number
1 pair 120 mm 2 (1 x 120)
2 pairs 240 mm
2
(2 x 120) 0.21 < 0.53 - 3 200 700 4.6 GA-12205
3 pairs 360 mm 2 (3 x 120) 0.18 < 0.46 - 4 800 1 050 6.0 GA-12305
Length 2 x 1.0 m (distance to test object 1.0 m)
Number
of cables Total cross section
area Impedance
cables twisted
(mΩ) Impedance
cables not
twisted (mΩ) Impedance
cables 1 m
apart (mΩ) Max. current
in 20 sec. (A) Max. cont.
current
(A) Weight
(total set)
(kg) Article
number
1 pair 120 mm 2 (1 x 120)
2 pairs 240 mm 2 (2 x 120) 0.32 < 0.80 - 3 200 700 7.3 GA-12210
3 pairs 360 mm
2
(3 x 120) 0.25 < 0.63 - 4 800 1 050 10.0 k GA-12310
Length 2 x 1.5 m (distance to test object 1.5 m)
Number
of cables Total cross section
area Impedance
cables twisted
(mΩ) Impedance
cables not
twisted (mΩ) Impedance
cables 1 m
apart (mΩ) Max. current
in 20 sec. (A) Max. cont.
current
(A) Weight
(total set)
(kg) Article
number
1 pair 120 mm
2
(1 x 120)
2 pairs 240 mm
2
(2 x 120) 0.42 < 1.10 < 1.70 3 200 700 10.0 GA-12215
3 pairs 360 mm 2 (3 x 120) 0.32 < 0.80 < 1.30 4 800 1 050 14.1 GA-12315
Length 2 x 2.0 m (distance to test object 2.0 m)
Number
of cables Total cross section
area Impedance
cables twisted
(mΩ) Impedance
cables not
twisted (mΩ) Impedance
cables 1 m
apart (mΩ) Max. current
in 20 sec. (A) Max. cont.
current (A) Weight
(total set)
(kg) Article
number
1 pair 120 mm
2
(1 x 120)
2 pairs 240 mm
2
(2 x 120) 0.53 < 1.30 < 2.10 3 200 700 12.7 GA-12220
3 pairs 360 mm 2 (3 x 120) 0.39 < 1.00 < 1.60 4 800 1 050 18.1 GA-12320
Multi-cable sets with customised length
Megger can supply the Multi-cable Sets with other lengths than specified above.
“L” refers to length of the set (maximum distance to the test object).