Switchgear Solutions: Beyond the Standard By G&W Electric
Published 07 Dec 2020
Electric Power Solutions
Transient Recovery Voltages for Medium Voltage Switchgear
The following Whitepaper by G&W Electric and presented by Thorne & Derrick discusses system parameters like capacitance and inductance can have adverse effects on the performance of load switching mechanisms. Highly capacitive and inductive loads cause transient recovery voltage (TRV) during load switching beyond the values determined by the IEEE C37.74 standard.
Thorne & Derrick are Specialist Distributors of Substation, Electrical Safety, Cable Jointing & Accessories to UK and international utilities and contractors providing electrical power at distribution and transmission voltage levels.
G&W Electric
Overview of G&W Cable Accessories
In 1905 G&W introduced the first disconnectable cable terminating device.
Over 100 years later, G&W continues to create technical innovations that have improved performance and reliability. With over 100 years experience, G&W is the name you can trust for quality cable accessories. With sales representation worldwide, G&W has a proven track record for success.
G&W cable accessories are designed to accommodate cables from all manufacturers and can be created to accommodate any customer cable system. The optional mechanical shrink feature offers an easier and faster installation while reducing possible damage during installation. G&W also offers installation supervision and installation training, which can be customized to suit the audience.
G&W offers a variety of transmission cable accessories for extruded dielectric cable systems. Cable terminations are available for outdoor applications to 230kV and include porcelain or composite insulator options and premolded designs. Gas insulated substation designs are available to 230kV.
Transition cable splices and cable joints are available to 138kV and include premolded designs. All cable terminations and cable joints incorporate built-in stress control and dielectric fluid. Dry type designs are also available for maximum ease of installation.
Substation, Electrical Safety, Cable Jointing & Accessories | 11kV 33kV 66kV to 400kV
