Voltage Indicators with Partial Discharge Detection

Question: What is a CAPDIS Voltage Detection and Indication system?

Answer: The CAPDIS-Sx line are advanced devices that are designed to detect and indicate the presence of voltage in electrical installations, to enhance safety and reliability. The CAPDIS-Sx_55 (R5) generation also provides partial discharge indication.

Question: How does the CAPDIS R4.5 differ from the R5?

Answer: The main difference between the CAPDIS R4.5 and R5 generations is that the R5 has an additional partial discharge indication function, providing an early warning of insulation damage. Also, the response time response time of the R5 S2 version relay is also improved – now ≤0.2s on the R5 S2 compared with ≤1s on the R4.5 S2.

Question: How does the CAPDIS S1 differ from the S2?

Answer: The CAPDIS S2 includes two output relays in addition to the standard voltage detection, plus partial discharge detection features (R5 only). This allows it to interface with other control systems like IKI-Line for directional fault current indication or remote communication with SCADA systems.

Question: How can operators be sure that CAPDIS devices are working properly?

Answer: All CAPDIS devices have a test button which can be pushed at any time. When the indicator shows that the device is working properly, the operator can trust that the voltage detection information is accurate.

Question: Is there a function to detect broken leads?

Answer: CAPDIS devices can detect if the leads which connect them with the capacitive divider C1 are broken. This is an additional safety feature available on all four versions (R4.5 S and S2, and R5 S1 and S2).