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PEXLIM

PEXLIM R144-YV145

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.

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General data
Unit
Neutral ground arrester
No
Family name
PEXLIM
Type designation
R144-YV145
Design
MO, Gapless
Manufacturer country
Hitachi Energy, Sweden
Maximum system voltage (Us)

kVrms

145
Arrester classification as per IEC 60099-4 Ed. 3.0

Class

Station; SL
Nominal discharge current

kApeak

10
Rated voltage (Ur)

kVrms

144
Maximum continuous voltage (Uc)

kVrms

92
Frequency

Hz

15-62
TOV capability (after thermal energy rating Wth)
1s

kVrms

157
10s

kVrms

148
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

297
1.0 kA

kVpeak

309
2.0 kA

kVpeak

323
Maximum residual/discharge voltage with current wave 8/20 μs (fast-front/lightning)
5.0 kA

kVpeak

353
10 kA

kVpeak

374
20 kA

kVpeak

419
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

404
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

486
50 Hz, wet (60 s)

kVrms

223
SIWL, wet (250/2500 μs)

kVpeak

371
External insulation - Sum of tested values on individual empty unit housing
LIWL, 1.2/50 μs

kVpeak

740
50 Hz, wet (60 s)

kVrms

360
SIWL, wet (250/2500 μs)

kVpeak

600
Creepage distance (nominal)
mm

mm

4540
mm/kV (Us)

mm/kV (Us)

31
Creepage distance class
Very Heavy (31 mm/kV (Us))
Specified long-term load (SLL)

Nm

1000
Specified short-term load (SSL)

Nm

1600
Insulator colour/material
Grey Silicone
Dimensions
Mass (kg)
30
Amax (mm)
1388
B (mm)
-
C (mm)
-
D (mm)
-
Shipping data
Unit
1-pack
Volume

kg

0,9
Gross

kg

61
2-pack
Volume

m3

-
Gross

kg

-
3-pack
Volume

m3

0,9
Gross

kg

123
6-pack
Volume

m3

1,5
Gross

kg

216
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.