Choose your region and language



Surge counters and surge monitors for surge arresters

With our state-of-the-art product family EXCOUNT, Hitachi Energy has the full range of counters and monitors to cater for all customer needs – from simple discharge operation count (EXCOUNT-C) through leakage current measurement (EXCOUNT-I), remote wireless monitoring and diagnostics (EXCOUNT-II) to online real-time monitoring, diagnostics and analysis (EXCOUNT-III).

Why Hitachi Energy?

  • Proven safe short-circuit design 
  • No voltage added to the residual voltage of the arrester 
  • Maintenance free
  • Easy to install
  • Simple to use

Product overview

Surge registration        
 - Number of impulses Yes Yes Yes Yes
 - Impulse amplitude classification     Yes Yes
- Impulse amplitude measurement       Yes
(also available without) 
- Time stamp     Yes Yes
- Wave Steepness       Yes
(also available without)
- Advanced Surge analytics       Yes
(also available without)
Current measurement        
- Total current   Yes
(also available without)
Yes Yes
- Resistive leakage current     Yes
(also available without)
- Overvoltage estimation       Yes
(also available without) 
- Online real time monitoring       Yes
Display 6 digit,
electro- mechanical counter
6 digit,
Remote reading, PC connectivity Remotely monitored through network connection
Power Supply Not applicable Solar panel Solar panel and field probe 100-250 Volt, AC (50-60 Hz) or DC, Max. 5 Watt, Max 0.1 A

Something caught your eye?

Our sales team will get in touch with you