SELECTION CHART
Illustration
(not to scale)
?
~
Description
Voltage
Class
Elastimold
Part Number
MCOV
kVrms
BSA
Bushing
Surge Arrester
(includes
assembly
tool)
15kV
15kV
15kV
15kV
15kV
15kV
25kV
25kV
25kV
25kV
25kV
35kV
35kV
35kV
167BSA-3
167BSA-6
167BSA-10
167BSA-12
167BSA-15
167BSA-18
273BSA-10
273BSA-12
273BSA-15
273BSA-18
273BSA-21
375BSA-24
375BSA-27
375BSA-30
255
5 10
8.40
10.20
12 70
1530
8.40
10.20
12.70
15.30
17.00
19.50
22.00
24.40
15kV
15kV
15kV
15kV
15kV
15kV
25kV
25kV
25kV
25kV
25kV
35kV
35kV
35kV
167ESA-3
167ESA-6
167ESA-10
167ESA-12
167ESA-15
167ESA-18
273ESA-10
273ESA-12
273ESA-15
273ESA-18
273ESA-2 1
375ESA-24
375ESA-27
375ESA-30
2.55
5.10
8.40
10.20
12.70
1530
8.40
10.20
12.70
15.30
17.00
19.50
22.00
2440
15kV
15kV
15kV
15kV
15kV
15kV
25kV
25kV
25kV
25kV
25kV
35kV
35kV
35kV
167PSA-3
167PSA-6
167PSA-10
167PSA-12
167PSA-15
167PSA-18
273PSA-10
273PSA-12
273PSA-15
273PSA- 18
273PSA-21
375PSA-24
375PSA-27
375PSA-30
2.55
5.10
840
10.20
12.70
15.30
840
10.20
12.70
15.30
17.00
19.50
22.00
24.40
See Notes
N1, 2, 3,4
ESA
Elbow
Surge Arrester
~
See Notes
N2, 3, 5
PSA
Parking Stand
Arrester
t
ARRESTER APPLICATION TABLE
See Notes
N1 , 2, 3
System Line-to-Line
Voltage kV rms
MCOV (Max. Continuous
Operating Voltage) kV rms
Solidly
Grounded
Neutral Circuits
3-Wire
Ungrounded
Circuits
Nominal
Max.
15kV
Class
2.40
4.16
4.80
6.90
8.32
12.47
13.20
13.80
13.80
2.54
4.40
5.08
726
8.80
13.20
13.97
14.50
14.50
2.55
2.55
5.10
5.1 0
5.10
8.40
8 40
8.40'
1020
2.55
5.10
5.10
8.40
8.40
1530
1530
15.30
15.30
25kV
Class
6.90
8.32
12.47
13.20
13.80
1380
20.78
20.78
23.00
24.94
24.94
28.00
7.26
8.80
13.20
13.97
14.50
14.50
22.00
22.00
24.34
26.40
26.40
2980
5.10
510
8.40
8.40
8.40'
10.20
12.70
1530'
15.30
15.30
17.00'
17.00
8.40
8.40
15.30
15.30
15.30
1530
23.00
34.50
3450
24.34
3651
36.51
-
35kV
Class
-
-
22.00
22.00'
24.40
-
• Preferred arrester MCOV for this system voltage
...
N 1. Elastimold PSA and BSA Arresters are equipped with a fully rated 200A
switching and fault close loadbreak bushing.
N2. Elastimold Arresters use high-strength silver epoxy bonded MOV blocks
and shunted spring connections for the best ctrcu tt connection.
N3. A 36 tnch #4 AWG ground lead provided with each unit.
N4. BSA installed by turning internal hex bolt (accessed thru the 200 Amp
Bushing Interface) with 5/16" hex wrench supplied with each unit.
N5. For 15kV and 25kV Class DEADBREAK system Elbow Arresters, use part
number 156ESA with the appropriate Duty Cycle rating.
ORDERING INSTRUCTIONS:
(1.) Determine the appropriate Maximum Co nltnuous Operating
Voltage (MCOV) for your system voltage by using the ELASTIMOLD
ARRESTER APPLICATION TABLE.
(2.) Specify the appropriate ELASTI MOLD part number from the
selection chart.
CAIALU G 2001 Page 27 IU: 3/00
ELASTIMOLD Metal Oxide Varistor (MOV) surge arresters are fullyshielded, fully-submerstble and are equipped with IEEE 386 interfaces for
conventent energized connection with other 200 Amp loadbreak components. Units are compact, allowtng installation in existing cabinetry. For
application ease, arresters are available in 3 styles: Elbow (ESA), Parking
Stand (PSA) and Bushing (BSA). The PSA and BSA arresters permit direct
connection eliminating the need for additional accessories.
Elasttmold arresters provide high voltage lightning and switc hing surge
protection o f transformers, cable, equipment and other components typically located on underground power distribution systems. Proper placement, voltag e selection and coordination with riser pole arresters minimizes
damag ing surge voltages by improving protective margins.
Typical applications include installing an arrester at the end of a radial
system or at both ends of an open point on a loop system. Additional
arresters can be added at strategic locations upstream from the end point
for optimum p rotection. Request Form 2068 (Surge Protection Options For
Underground Distribution) and Form 2069 (Arrester ApplicationsUnderground Electrical Systems) for additional application and margin of
protection informatton .
167BSA
167PSA
ESA Elbow Arresters are also available with a 200 Amp Deadbreak interface for mating with other Deadbreak accessories.
BUSHING
W ELL
BSATM BUSHING
SURGE AR RESTER
ELECTRICAL RATINGS & PROTECTIVE CHARACTERISTICS
Performance:
High Current Short Duration · All MOV Arresters Withstand two discharges of 40kA crest
Low Current Long Duration - All MOV Arresters withstand 20 surges
of 75 amperes/2000 microsecond duration.
J
Duty Cycle Test - All MOV Arresters withstand 22 operat1ons of 5kA crest at 8 x 20 m1crosecond
duration while energ1zed at rated voltage lor the in1ttal 20 operations and at max1mum continuous
operating voltage (MCOV) for the f1nal two operations
LOAOBREAK
BUSHING INSERT
Following each of the preceding tests. MOV Arresters demonstrate thermal recovery at MCOV.
PROTECTIVE CHARACTERISTICS:
Maximum Discharge Voltage (kV c rest) F. 0. W. Protective
MCOV
Level (kV crest)
8x20 microsecond current wave
(kVrms)
Duty Cycle
Note 1 Rating (kVrms) 1.5kA 3kA
Note 2
10kA
20kA
SkA
2.55
5.1
8.4
10.2
12.7
15.3
3
6
10
12
15
18
10 5
205
305
400
480
565
11 .0
21.5
32.5
42.5
51.0
600
11.5
23.0
34.5
45.0
54.0
64.0
13.0
25.5
38.5
50.0
60.0
71.0
14 .5
30.0
43.5
56.5
68.0
805
13 0
25 5
385
500
600
71.0
25kV
CLASS
84
102
12 7
15.3
170
10
12
15
18
21
305
40.0
48.0
56.5
65.5
32.5
42.5
51 0
600
69 5
34.5
450
54.0
64.0
74 0
38.5
50.0
60.0
71.0
82 5
435
565
68.0
80.5
93.0
385
500
600
71 .0
82.5
35kV
CLASS
19.5
220
24 4
24
27
30
78.5
87 5
95 5
83.5
93.0
101 .5
89.0
99.0
108.0
99.0
110.0
120.0
112.0
124.5
136.0
99.0
110.0
120.0
15kV
CLASS
NOTES:
1. MCOV • Max1mum Continuous Opcrat1ng Voltage
2. The front of wave (FOW) protective level is the max1mum d1scharge for a SkA 1mpulse current wave
producing a voltage wave crestmg 1n 0.5 m1croseconds.
ELASTIMOLD
LOADBREAK
FEED-THRU INSERT
ESATM ELBOW
SURGE
ARRESTER
FEEDTHRU
u_.L_tSro
PARKING
STAND
a
PSATM PARKING
STAND
ARRESTER
CATALOG 2001 Page 26 ID: 3/00