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EXLIM P276-GH362

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:

–  The installation location is in an area with very high lightning intensity

–  Grounding or shielding conditions are poor or incomplete

–  The protected equipment is of especially importance

–  Energy requirements are very high (e.g. very long lines, capacitor protection)

 

The EXLIM P-G is an excellent choice when a porcelain housed surge arrester is required.

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General data
Unit
Neutral ground arrester
No
Family name
EXLIM
Type designation
P276-GH362
Design
MO, Gapless
Manufacturer country
Hitachi Energy, Sweden
Maximum system voltage (Us)

kVrms

362
Arrester classification as per IEC 60099-4 Ed. 3.0

Class

Station; SH
Nominal discharge current

kApeak

20
Rated voltage (Ur)

kVrms

276
Maximum continuous voltage (Uc)

kVrms

221
Frequency

Hz

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

kVrms

301
10s

kVrms

285
Charge, energy and current withstand data
Repetetive charge transfer rating Qrs

C

3.2
Thermal energy rating Wth

kJ/kV (Ur)

11
Discharge current withstand strength
High current, 4/10 μs

kApeak

100
Low current, 2000 μs

Apeak

1600
Single-impulse Single-impulse withstand rating (IEEE), Repetitive charge transfer test value (IEC) - sample tests on all manufactured block batches

C

4
Energy data as per previous IEC standard IEC 60099-4, Ed 2.2
Line discharge class

Class

4
Energy capability - thermal energy capability (as per IEC 60099-4 Ed 2.2, clause 8.5.5)

kJ/kV (Ur)

11
Guaranteed max. protective data
Maximum residual/discharge voltage with current wave 30/60 μs (slow-front/switching)
0.5 kA

kVpeak

523
1.0 kA

kVpeak

537
2.0 kA

kVpeak

555
Maximum residual/discharge voltage with current wave 8/20 μs (fast-front/lightning)
5.0 kA

kVpeak

598
10 kA

kVpeak

629
20 kA

kVpeak

689
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

670
Technical data for housing
Short-circuit capability
High current, 0.2 s

kArms

65
Low current

Arms

600
External insulation - Requirements as per IEC 60099-4
LIWL, 1.2/50 μs

kVpeak

895
50 Hz, wet (60 s)

kVrms

416
SIWL, wet (250/2500 μs)

kVpeak

694
External insulation - Sum of tested values on individual empty unit housing
LIWL, 1.2/50 μs

kVpeak

1740
50 Hz, wet (60 s)

kVrms

834
SIWL, wet (250/2500 μs)

kVpeak

1386
Creepage distance (nominal)
mm

mm

9782
mm/kV (Us)

mm/kV (Us)

27
Creepage distance class
Heavy (25 mm/kV (Us))
Specified long-term load (SLL)

Nm

8000
Specified short-term load (SSL)

Nm

20000
Insulator colour/material
Brown Porcelain
Dimensions
Mass (kg)
360
Amax (mm)
3860
B (mm)
1400
C (mm)
1000
D (mm)
700
Shipping data
Unit
1-pack
Volume

kg

2.1
Gross

kg

465
2-pack
Volume

m3

5.2
Gross

kg

900
3-pack
Volume

m3

5.2
Gross

kg

1270
6-pack
Volume

m3

5.2
Gross

kg

1270
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.