Instruments and Meters (2450)

2450 - INSTRUMENTS AND METERS Energized Insulator Testers For Distribution and Transmission Systems

Operation • Sensitive voltmeter measures difference in potential across each insulator in a suspect string • Comparative readings from satisfactory strings in same operating situation quickly indicate the state of every insulator in the string being tested • Meter places minimal load on the phase as it requires only a small leakage current to make a reading • Two straight steel probes threaded into the tester forks simply contact the metal fittings on both ends of each insulator at the same time • Mounted on a 1-1/4"-dia. Epoxiglas® pole with a universal fitting • Before each use the tester should be attached to the proper length hot stick for the system voltage involved • Distribution model’s scale reads up to 11 kV • Transmission model’s scale reads a maximum of 16 kV Applications • Without interrupting service, one of these testers quickly can check the condition of each insulator in a string • Greatly reduces maintenance costs • Only insulators identified as damaged require replacements • No need to change entire strings • Available in two models • Testers serve specific applications: • Deadend insulators on distribution systems through 35 kV • Suspension insulators on 44 kV through 500 kV transmission systems

Transmission Tester C4032299

Plug-in jack on Insulator Tester meter housing permits line personnel to quickly verify its operable condition with a Phasing Voltmeter Tester (Cat. No. C4030838) before and after each use. Energized Insulator Testers (each includes instrument, two straight probes, operating instructions and metal carrying case) Catalog No. System Applications Weight C4032298 Distribution (thru 35 kV) 4 lb./1.8 kg. C4032299 Transmission (44 thru 500 kV) 5 lb./2.3 kg.

Distribution Tester C4032298

*Carrying case weighs additional 10-1/4 lb. (4.6 kg.)

www.hubbell.com/hubbellpowersystems | 2450-21