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PEXLIM R120-YN170
This surge arrester provides protection for switchgear, transformers and other equipment in high voltage systems against atmospheric and switching overvoltages.
Especially suitable for applications where:
– Requirements of lightning intensity, energy capability and pollution are moderate
The PEXLIM R-Y is superior where low weight, reduced clearances, flexible mounting, non-fragility and additional personnel safety is required.
General data
Unit
Neutral ground arrester
Yes
Family name
PEXLIM
Type designation
R120-YN170
Design
MO, Gapless
Manufacturer country
Hitachi Energy, Sweden
Maximum system voltage (Us)
kVrms
170
Arrester classification as per IEC 60099-4 Ed. 3.0
Class
Station; SL
Nominal discharge current
kApeak
10
Rated voltage (Ur)
kVrms
120
Maximum continuous voltage (Uc)
kVrms
-
Frequency
Hz
15-62
TOV capability (after thermal energy rating Wth)
1s
kVrms
131
10s
kVrms
123
Charge, energy and current withstand data
Repetetive charge transfer rating Qrs
C
1,2
Thermal energy rating Wth
kJ/kV (Ur)
5
Discharge current withstand strength
High current, 4/10 μs
kApeak
100
Low current, 2000 μs
Apeak
600
Single-impulse Single-impulse withstand rating (IEEE), Repetitive charge transfer test value (IEC) - sample tests on all manufactured block batches
C
1,5
Energy data as per previous IEC standard IEC 60099-4, Ed 2.2
Line discharge class
Class
2
Energy capability - thermal energy capability (as per IEC 60099-4 Ed 2.2, clause 8.5.5)
kJ/kV (Ur)
5
Guaranteed max. protective data
Maximum residual/discharge voltage with current wave 30/60 μs (slow-front/switching)
0.5 kA
kVpeak
248
1.0 kA
kVpeak
257
2.0 kA
kVpeak
270
Maximum residual/discharge voltage with current wave 8/20 μs (fast-front/lightning)
5.0 kA
kVpeak
294
10 kA
kVpeak
312
20 kA
kVpeak
349
Maximum residual/discharge voltage with current wave 1/(2-20) μs (FOW as per IEEE, steep front as per IEC) External inductive effects neglected
10 kA
kVpeak
337
Technical data for housing
Short-circuit capability
High current, 0.2 s
kArms
50
Low current
Arms
600
External insulation - Requirements as per IEC 60099-4
LIWL, 1.2/50 μs
kVpeak
405
50 Hz, wet (60 s)
kVrms
186
SIWL, wet (250/2500 μs)
kVpeak
310
External insulation - Sum of tested values on individual empty unit housing
LIWL, 1.2/50 μs
kVpeak
620
50 Hz, wet (60 s)
kVrms
300
SIWL, wet (250/2500 μs)
kVpeak
500
Creepage distance (nominal)
mm
mm
3726
mm/kV (Us)
mm/kV (Us)
22
Creepage distance class
Not Applicable
Specified long-term load (SLL)
Nm
1000
Specified short-term load (SSL)
Nm
1600
Insulator colour/material
Grey Silicone
Line terminals
Earth terminals
Drilling plans
Shipping data
Unit
1-pack
Volume
kg
0,7
Gross
kg
52
2-pack
Volume
m3
-
Gross
kg
-
3-pack
Volume
m3
0,7
Gross
kg
106
6-pack
Volume
m3
1,2
Gross
kg
187
Each crate contains a certain number of arrester units and accessories for assembly and erection. A packing list is attached externally on each crate.
Each separate crate is numbered and the numbers of all crates and their contents are listed in the shipping specification.
Hitachi Energy reserves the right to pack arresters in the most effective/economic combination. Alternate or non-standard crates may
involve additional charges.
The table above is to be seen as an approximation and specific data for deliveries may differ from the values given.
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