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Underground Arresters

  • Underground Arresters

Key attributes

Brand ROCKWILL
Model NO. Underground Arresters
Rated voltage 30kV
Design code 235
Series code E
Series Y10WZ
Description

Product features :

Pulling Eye provides positive hotstick operation. The pulling eye strength exceeds 500 lbs of force. Insulation consists of peroxide-cured EPDM rubber that offers proven, uncompromised reliability and dimensional stability.

Molded Shield of conductive peroxide-cured EPDM rubber meets all requirements of IEEE Std. 592 for exposed semi-conducting shields.

Drain Wire Tab provides a contact point to attach a #14 ground wire to ensure the shield is at ground potential and maintains deadfront construction.

Fiberglass Wrap ensures that the MOV block stack remains in one piece and prevents the blocks from breaching the side wall should the arrester fail.

ID Band provides clear visual identification of arrester MCOV and duty cycle ratings.

Flexible Lead is #4 AWG copper rope lay conductor 595 strand (7 x 85). Ends are soldered to prevent fraying. Standard length is 36” long. Other lead lengths are available.

MOV Blocks are the same ones found in Ohio Brass overhead arresters.

Application:

Our parkingstand and elbow lightning arresters are designed to mate with 200 amp loadbreak interfaces that conform to IEEE Std. 386. The parkingstand lightning arrester contains a defined interface, while the elbow lightning arrester mates with a defined interface.

The  arrester installed at the end of a radial system or at both ends of an open point in a loop circuit will provide excellent protection against high voltage surges resulting from lightning or switching.

When combined with an Ohio Brass PVR (Riser Pole) arrester, optimum protection can be achieved. Our arresters are fully shielded and submersible, either contin.

Technology parameters

Catalog Number MCOV kV Rating kV 0.5 μsec 5 kA Max IR-kV Maximum Discharge Voltage (kV Crest)
1.5 kA 3.0 kA 5.0 kA 10 kA 20 kA
2___LA03 2.55 3 12.5 9.8 10.3 11 12.3 14.3
2___LA06 5.1 6 25 19.5 20.5 22 24.5 28.5
2___LA09 7.65 9 33.5 26.8 28 30 33 39
2___LA10 8.4 10 36 27 29.5 31.5 36 41.5
2___LA12 10.2 12 50 39 41 44 49 57
2___LA15 12.7 15 58.5 45.5 48.5 52 57.5 67.5
2___LA18 15.3 18 67 52 56 60 66 78
2___LA21 17 21 73 55 60 64 73 84
2___LA24 19.5 24 92 71.5 76.5 82 90.5 106.5
2___LA27 22 27 100.5 78 84 90 99 117
2___LA30 24.4 30 108 81 88.5 94.5 108 131.5
  • R = Rockwill
  • E = Elbow Arrester
  • P = Parkingstand
Rating MCOV kV Underground Arresters
03 2.55
06 5.10
09 7.65
10 8.40
12 10.20
15* 12.70
18* 15.30

 

ELA Reference Date:

Catalog Number IEEE Std. 386 Interface MCOV (kV) Rated Voltage (kV) Dimensions A Inch (mm) Dimensions B Inch (mm) Dimensions C Inch (mm) Shipping Weight Lbs Shipping Weight (kg)
225ELA09 25 kV Class Fig.7 7.65 9 7.9 (201) 6.6 (168) 3.1 (79) 3.7 1.7
225ELA10 8.4 10
225ELA12 10.2 12
225ELA15 12.7 15 10.2 (259) 5.2 2.4
225ELA18 15.3 18
225ELA21 17 21

 

PLA Reference Date:

Catalog Number IEEE Std. 386 Interface MCOV (kV) Rated Voltage (kV) Weight Lbs Weight (kg)
225PLA09 25 kV Class Fig.7 7.65 9 4.6 2.09
225PLA10 25 kV Class Fig.7 8.4 10 4.6 2.09
225PLA12 25 kV Class Fig.7 10.2 12 4.6 2.09
225PLA15 25 kV Class Fig.7 12.7 15 4.6 2.09
225PLA18 25 kV Class Fig.7 15.3 18 4.6 2.09
225PLA21 25 kV Class Fig.7 17 21 4.6 2.09

Underground Arresters

Rating MCOV
24 19.5
27 22
30 24.4

Underground Arresters

ELA Reference Data:

Catalog Number IEEE Std. 386 Interface MCOV (kV) Rated Voltage (kV) Dimensions Inch (mm)
 
A
Dimensions Inch (mm)
 
B
Dimensions Inch (mm)
 
C

Shipping Weight

Lbs                          (kg)

235ELA24 35 kV Class Fig.7 19.5 24 7.9 (201)

10.2 (168) 3.1 (79)   5.2                          (2.4)
235ELA27 35 kV Class Fig.7 22 27 13.7 (348)   6.5                           (2.9)
235ELA30 35 kV Class Fig.7 24.4 30  

Caution

This product is only compatible with a 35 kV small interface, Fig. 7 of IEEE Std 386.
 
It is not compatible with a 35 kV large interface, Fig. 8 of IEEE Std 386.

Know your supplier

Online store
On-time delivery rate
Response time
100.0%
≤4h
Company overview
Workplace: 108000m² Total staff: 700+ Highest Annual Export(usD): 150000000
Services
Business Type: Design/Manufacture/Sales
Main Categories: Medium and High Voltage Switchgear/Power and Distribution Transformers/Instrument Transformers and Sensors/Lightning Protection and Electrical Insulation/Substations and E-Houses/Electrical Panel and Controlgear
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