ABB EXCOUNT-C Surge Counters
EXCOUNT-C
EXCOUNT-C are simple surge counters with all the essentials for easy installation and highest personnel safety. The counter is maintenance free; powered by the surge current and suitable for all weather and temperature conditions.
Surge Counters are used to monitor the health of Surge Arresters and protect against potentially damaging events which could lead to deterioration and ultimate overload. It is important to also schedule regular checks of surge arresters including visual inspection and diagnostics to detect and prevent a costly power outage.
Related Substation Products | Surge Diverters | Joints & Terminations | Tools Cut & Crimp | Sealing Ducts | Electrical Safety
ABB Surge Counters
The EXCOUNT surge counter range draws upon over 70 years of experience by ABB in the development of arresters and associated accessories. Safety, functionality and longevity are key elements which are given priority in selection and design of components. In stark contrast to many other competing products, the EXCOUNT surge counters has not neglected short-circuit safety which lies inherent in the design concept.
Design features
EXCOUNT-C is to be fitted in the earth circuit between the arrester and ground. For simplicity, the EXCOUNT-C does not have a termination point for the earth cable. Instead an opening is provided to draw the entire earth conductor from the arrester completely through and down to ground. In case the conductor is too large to fit through the hole, an optional conductor kit may be ordered separately. The secondary circuit is connected to a mechanical counting relay and all components are totally sealed in polymer. A viewing window permits easy reading of the six-digit cyclometer-type counter.
Surge registration
The counting threshold for EXCOUNT-C is adapted for gapless surge arresters. Only pulses that are considered significant to the arrester capability and life are therefore registered.
Maintenance free
A robust plastic casing is fitted over the encapsulated internals, which makes EXCOUNT-C non-sensitive to humidity or temperature variations. It can be exposed to all environments regardless of weather and temperature conditions. The current transformer secondary output is sufficient for driving the counter and an external supply source is hence not needed.
EXCOUNT-C Technical data
Please contact Thorne & Derrick should you require any assistance with the selection, specification or purchase or Surge Counters from the EXCOUNT range of products manufactured by ABB.
Item number | 1HSA448000-A |
Climatic conditions | Sealed water-tight design, IP67 |
Short-circuit capability | 65 kA according to IEC 60099-4 |
Power Supply | Impulse current |
Surge Registration
Minimum counting threshold (8/20 µs) – 1.5 kA
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