Latest News: Product Focus Doepke UK Ltd Type B Residual Current Devices for PV Installations
With over 55 years experience in the development and manufacture of residual current circuit breakers, Doepke have established a reputation as a specialist in residual current protection, and their RCCB product range is today the most comprehensive in the world with over 4000 variations manufactured in Germany.
Type 'B' RCDs AC-DC sensitive for PV Installations
'B' type RCDs in addition to normal AC, can detect high frequency AC and pure DC earth leakage currents.
Reducing the risk of fire and/or electrocution through automatic disconnection of the electrical supply relies on the selection of the correct type of RCD. Doepke UK Ltd
Photovoltaic Sets Offer Surge Voltage Protection for Multi-String Systems
The new PV sets from Phoenix Contact for multi-string inverters reliably protect photovoltaic systems with two or three independent strings against surge voltages up to 1000 V DC.
State-of-the-art inverters control the maximum energy yield via several MPP trackers (Maximum PowerPoint). The trackers optimally adapt the electrical parameters of the complete PV system to the prevailing solar radiation conditions of the individual strings, so that the maximum yield can be achieved from the modules.
With the new device connection boxes for multi-string PV systems, every individual MPP tracker of an inverter is protected against damage due to surge voltages, therefore securing continuous generation of energy. The completely pre-wired PV sets are accommodated in
installation-friendly housings with IP65 protection and equipped with Sunclix PV connectors from Phoenix Contact. Versions are available for inverters with two or three MPP trackers.
Phoenix Contact Surge Protection for Floating Photovoltaic Systems
The VAL-MS 1000DC/2+F... surge arresters protect photovoltaic systems up to 1000 V. They are particularly suitable for use in large systems. The arresters can be used in both isolated and mid- point grounded systems thanks to their low protection level.
The protective circuit is thermally and dynamically monitored and disconnects the arrester from the generator voltage in the event of any damage. The compact arrester blocks consist of a base element and protective connectors. Full functionality of the connectors can be tested using the CHECKMASTER arrester test device.
If a connector indicates a fault due to overload caused by surge voltage, an indicator indicates the status directly. It can then be easily replaced. The status of the arrester can be monitored remotely via a floating PDT contact.
VAL-MS 1000DC/2+F... versions are available with and without a remote indication contact. Phoenix Contact
For all the most up to date news and products visit www.solardigest.co.uk
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