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TD231 Datasheet

Technical Specifications for 5 kA/ Normal-Duty Distribution 4.5 kV and 5 kV VariSTAR MOV Disks

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SUBJECT: Technical Specifications for 5 kA, Normal-Duty
Distribution 4.5 kV and 5 kV VariSTAR® MOV Disks
Technical Data
TD-231
APPLICATION
The VariSTAR MOV (Metal Oxide Varistor) disks described in this Technical Data sheet are for
use as active elements in IEC 5 kA and ANSI Normal-Duty Distribution Class Surge Arresters,
when applied in an appropriately designed arrester.
Polymer Housed Arrester Designs:
Use the glass collared AV5NG series VariSTAR disks, when applying disks to a polymer housed
arrester, where the dielectric strength of the material in direct contact with the disks exceeds the
dielectric strength of air.
Porcelain Housed Arrester Designs:
Option 1.
Use the glass collared AV5NG series VariSTAR disk together with an Epoxy Film Tape, as
described in technical data sheet TD-241, when applying disks in a porcelain housed arrester,
where the material in direct contact with the VariSTAR disks is equal to the dielectric strength of air.
Option 2.
Use the epoxy collared AV5NE series VariSTAR disks, when applying disks in a porcelain
housed arrester, where the dielectric strength of the material in direct contact with the disks is
equal to the dielectric strength of air.
Electrical properties for AV5NG and AV5NE series VariSTAR disks are otherwise identical.
Catalog Number reference:
AV5 = Disk Size
N = Normal-Duty, 5 kA
G/E = Glass or Epoxy Collar
PA/PB = Rating Designation
Ø32.7 ±0.28
Ø32.6 ±0.254
GLASS
INSULATING
0.051 ±0.013 COLLAR
Ø33.31
+0.534
-0.382
Ø32.6 ±0.254
0.051 ±0.013
0.356
+0.140
-0.064
34.63 ±0.3
34.63 ±0.3
GLASS
INSULATING
COLLAR
(TRANSLUCENT)
MOV DISK
AV5NG
METALIZED
ELECTRODE
(TO EDGE OF DISK)
EPOXY INSULATING
COLLAR
(SOLID GREY)
Surface Area = 8.64 cm2
Volume
= 28.78 cm3
Figure 1
Dimensions AV5NG VariSTAR Disk and AV5NE VariSTAR Disk in mm
November 2003 Supersedes 11/02
File Ref: 235
Page 1 of 6
MOV DISK
AV5NE
METALIZED
ELECTRODE
(TO EDGE OF DISK)




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TD231 Datasheet

Technical Specifications for 5 kA/ Normal-Duty Distribution 4.5 kV and 5 kV VariSTAR MOV Disks

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Table 1
Suggested Usage & Class Ratings
Catalog
Number
AV5NEPA
AV5NGPA
AV5NEPB
AV5NGPB
Suggested
Ur (Rating)
4.5 kV
5.0 kV
Suggested
Uc (MCOV)
3.94 kV
4.26 kV
IEC LD
Current Withstand
150 A 2000 µs
150 A 2000 µs
ANSI LCLD
Class
75 A 2000 µs
IEC High Current
ANSI HCSD
65 kA
Iref
3 mA
75 A 2000 µs
65 kA
3 mA
Table 2
Maximum Residual Voltages
Catalog
Number
AV5NEPA
AV5NGPA
AV5NEPB
AV5NGPB
Rating
(kV)
4.50
5.00
MCOV
(kV
rms)
3.94
4.26
0.5 µsec
(ANSI)
kV @
5 kA
16.0
1.0 µsec
(IEC)
kV @
5 kA
15.9
kV pk @
1.5 kA
13.1
kV pk @
3 kA
14.1
8/20 µs Wave Forms
kV pk @ kV pk @ kV pk @
5 kA
10 kA 20 kA
15.1 16.5 18.9
17.3 17.1 14.1 15.2
16.3 17.8 20.4
NOTE: Values other than V5 kA are typical values.
226.00
Residual VoDlitsacgheavrgse. IVmofpolturalg5skeeAvCsDu.riIsrmeknpstulse Current
kV pk @
40 kA
21.9
23.6
224.00
222.00
220.00
AV5NGGPPA02C
AV5NGGPPB04C
118.00
116.00
114.00
112.00
11000000
Figure 2
Maximum Residual Voltage vs. Impulse Current
11000,00000
IMPULSE CURRENT (A)
10100,0000000
1.8
1.7
NO PRIOR DUTY
1.6
1.5
1.4
1.3
AFTER IEC HIGH
1.2 CURRENT DUTY
1.1
1
0.01
0.1
1
10
100
1000
10000
TIME DURATION IN SECONDS
Figure 3
Temporary Overvoltage Capability, 60°C
NOTE: The TOV capability will depend on the design and thermal capability of the arrester. The above TOV curve
represents a typical Cooper Power Systems design.
Page 2 of 6


Part Number TD231
Description Technical Specifications for 5 kA/ Normal-Duty Distribution 4.5 kV and 5 kV VariSTAR MOV Disks
Maker ETC
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