Switchgear

Polymer-Encased Surge Arresters and Cutout Switches for Enhanced Electrical Safety

Polymer Housed Lightning Arrester with Lead Wire

This is a device installed on overhead power distribution lines to limit sparks and surge voltage from switching, and blocks follow current to protect electrical equipment.

Product Specification

Category

Rating

Rated voltage

18kV

Rated frequency

60Hz

Maximum continuous operating voltage (MCOV)

15.3kV

Nominal discharge current

5kA

Housing
dielectric
strength

Power frequency withstand voltage

Power frequency withstand
voltage

37kV

Lightning impulse withstand voltage

78kV

Residual
voltage

Steep current impulse

37kV

Lightning impulse

78kV

Creepage distance

745mm

Enhancing Reliability & Efficiency in Switchgear Operations

  • Gapless form using zinc oxide (ZnO) particles for superior follow current interruption

  • Uses polymer housing with superior insulation and damage resistance

  • Combines the spark arrester and lead wire into one to secure straightforward constructability

  • Has no accessible charging section for the spark arrester and lead wire, thus preventing electrocution and bird accidents

  • Superior insulation secured by use of silicon-rubber insulated electrical wire

25.8 kV Polymer Insulated Cutout Switch

This product is attached to the primary side of a pole-mounted transformer on 22.9 kV-Y overhead power distribution lines. With the position of the extra-high-voltage polymer cutout switch used for transformer protection and switching, there is no danger of explosion due to insulation breakage.

Also, it is manufactured using a silicon housing structure with superior arc-suppression performance.

Product Specification

Category

Rating

Rated voltage

25.8kV

Rated frequency

60Hz

Rated current

100A

Rated
interrupting current

Asymmetric

12kA, rms

Symmetric

8kA, rms

Power frequency withstand voltage

Terminal-ground

Dry

42kV

Wet

36kV

Terminal - terminal

745mm

Lightning impulse withstand voltage

Terminal - ground

Terminal - ground

Terminal - ground

125kV

Terminal - terminal

125kV

Enhancing Reliability & Efficiency in Switchgear Operations

  • Interruption of fault current using fuse link

  • Suitable for use at sites with salt damage, dust, etc.

  • Lightweight, easy to handle, and allows construction and transportation cost savings

Talk to our Specialist.

Our team will get in touch with you shortly. We are ready to discuss your needs and any questions you might have in detail.

Talk to our Specialist.

Our team will get in touch with you shortly. We are ready to discuss your needs and any questions you might have in detail.

Talk to our Specialist.

Our team will get in touch with you shortly. We are ready to discuss your needs and any questions you might have in detail.

Copyright © 2024 ULS CORPORATE INC.

Copyright © 2024 ULS CORPORATE INC.

Copyright © 2024 ULS CORPORATE INC.