Live HV CT Tester: Model 595HV

The model 595HV has been developed to work as an isolated
high voltage primary current sensor to the 595LV above.

The 595HV wirelessly connects to the 595LV and the two
synchronously measure and sample a HV CT’s current and
phase error accurately to within 0.1% of manufacturer’s
specification.

The default clamp size is 32 mm inner diameter and is suitable
for most HV feeders. It is a 1000:1 ratio and the opening and
closing action is controlled by a servo motor embedded within
the instrument’s case.

Positioning any clamp onto a HV cable can be particularly
challenging especially if the hot stick onto which it’s mounted
is very long.
The 595HV has made this easier with an embedded camera which faces the clamp direction.
The image is transmitted to a 5 or 6 inch colour display placed in a swivel clamp and positioned at the
operator’s eye level on the hot stick.
This allows the operator to more clearly position the clamp beneath the HV line of interest and then
activate the clamp to close around the line.

The 595HV may also be used to perform live load testing of high voltage feeders to detect suspicious
energy siphoning or branches of excess usage.

Other features include:
– Infrared control of clamp jaws opening and closing
– Bluetooth, for communication with the 595LV
– GPS for phase synchronization
– Screw mountable; can quickly be mounted onto a hot stick or even a drone with a dedicated platform
– Internal battery; 12 Vdc / 30 Wh lithium ion
– Weighs approx 2 kg or 4.4 pounds