Increased Safety for Switchgear Cabinets CI Arresters with Integrated Backup Fuse

Transcription

1 Increased Safety for Switchgear Cabinets CI Arresters with Backup Fuse

2 1 fuse 1 2 fuse monitoring 2 3 Considerable space saving 3 Innovative solution to save space in the switchgear cabinet External backup fuse 2 3 Additional complex cable routing 3 Conventional installation with external backup fuse and fuse monitoring

3 consumer installation Figure 1: Installation without separate arrester backup fuse Increases system availability The target is to protect devices in an electrical installation from damage caused by lightning and surges. However, even in the event of a fault, there should be no unintentional interaction between the surge protective devices and the system. This can be achieved with the RADAX Flow spark gap technology of the DEHN arresters. Load on fuses, circuit breakers and other system components is avoided by reducing the mains follow currents to a minimum. In conventional installations, the upstream system fuse is often used as a backup fuse for the surge protective devices. In the event of a fault, there is a danger that the entire system may be disconnected (Figure 1). Circuit Interruption Fuse (CI): The CI arresters by DEHN feature an integrated backup fuse. In case of a fault, only the surge protective device is disconnected. This maintains system availability (Figure 2). Figure 2: Innovative solution with integrated arrester backup fuse consumer installation Saves space The space in a switchgear cabinet is very limited. CI arresters from DEHN do not require an external backup fuse and consequently occupy up to 75 per cent less space. This is also an advantage for retrofits. Reduces time and material The CI arresters from DEHN can be installed quickly and safely using only a small quantity of materials. Optimum backup fuse The specially developed fuse is coordinated with the product and ensures the best possible performance for the SPD. Easy remote monitoring The integrated fuse of the CI arresters from DEHN is automatically monitored. Monitoring external backup fuses entails much greater effort and expense. Allows short cable lengths According to the installation standard, the maximum cable length is limited to 0.5 m 1). A considerable amount of the available length is already taken up by the external backup fuse. This limits the installation possibilities. The CI arresters from DEHN allow you to keep cables shorter. 1) IEC : Low-voltage electrical installations Part

4 100 ka rms Spark-gap-based combined arrester with integrated backup fuse Energy coordination with other arresters in the Red/Line series Low voltage protection level U P 1.5 kv (including backup fuse) RADAX Flow spark gap technology Extinction of mains follow currents up to 100 ka rms High lightning current discharge capacity up to 25 ka (10/350 μs) Reliable protection of terminal equipment Green/red operating state/fault indication for the arrester and backup fuse in the inspection window backup fuse 4 Floating remote signalling contact RADAX Flow spark gap

5 DEHNvenCI: 1 combined arrester with integrated backup fuse The DEHNvenCI combined arrester with its integrated backup fuse and RADAX Flow spark gap technology ensures maximum system availability and protection of terminal equipment. It stands out for its space-saving design and ease of use. The FM version of DEHNvenCI features a floating remote signalling contact. Benefits of DEHNvenCI: and monitored backup fuse Durable and proven technology Fast assessment of the operating state Universal use in switchgear installations up to 100 ka rms Can be used upstream of the meter panel Suitable for all system s Benefits of the integrated backup fuse: Maximum system availability Low space requirement Fast installation Universal use fuse monitoring Short cable length 5

6 100 ka rms 100 ka rms WBF DEHN SPARK GAP TECHNOLOGY INSIDE WAVE BREAKER FUNCTION DEHNvenCI 1 combined arrester with integrated backup fuse The combined arrester for 230 V and 400 V can be used universally. It provides maximum system availability and protection of terminal equipment. The arrester with integrated fuse has a width of only two standard DIN modules and can be installed on standard DIN rail systems. For switchgear assemblies up to 100 ka rms (220 ka peak ). DEHNbloc Maxi S 1 arrester with integrated backup fuse The leakage-current-free lightning current arrester with integrated fuse can be directly mounted on power busbars in industrial switchgear installations. This makes the arrester ideal for retrofitting. The operating state of the arrester can be monitored by means of remote signalling. For switchgear assemblies up to 100 ka rms (220 ka peak ). Technical data SPD according to EN Maximum prospective short-circuit 100 ka rms (220 ka peak ) current Technical data SPD nach EN Maximum prospective short-circuit 100 ka rms (220 ka peak ) current Limitation/extinction of mains follow currents up to 100 ka rms (220 ka peak ) Limitation/extinction of mains follow currents up to 100 ka rms (220 ka peak ) Maximum continuous operating voltage AC U C 255 V Maximum continuous operating voltage AC U C 255 V Lightning impulse current (10/350) I imp 25 ka 1.5 kv Lightning impulse current (10/350) I imp (beinhaltet 80 cm Anschlussleitung) 25 ka 2.5 kv DVCI Single-pole DVCI FM Single-pole DBM S Single-pole

7 WBF DEHN SPARK GAP TECHNOLOGY INSIDE WAVE BREAKER FUNCTION DEHNbloc Maxi CI arrester with integrated backup fuse The leakage-current-free arrester with RADAX Flow spark gap technology and a width of three standard DIN modules has a high discharge capacity whilst taking up only a minimum amount of space. Due to the high TOV withstand capability, DEHNbloc Maxi CI 440 is also suitable for protecting IT systems. DEHNbloc Maxi CI 440 is a DIN rail mounted device which can be fitted directly onto mounting plates using the mounting brackets supplied. DEHNbloc Maxi CI arrester with integrated backup fuse The leakage-current-free arrester with RADAX Flow spark gap technology and a width of three standard DIN modules has a high discharge capacity whilst taking up only a minimum amount of space. Due to the high TOV withstand capability, DEHNbloc Maxi CI 760 is also suitable for protecting IT systems. DEHNbloc Maxi CI 760 is a DIN rail mounted device which can be fitted directly onto mounting plates using the mounting brackets supplied. For 400 / 690 V industrial feeders, chemical plants, wind turbines and PV systems. Technical data Part No SPD according to EN Maximum continuous operating voltage (AC) U C 440 V For 400 / 690 V industrial feeders (high performance machines), chemical plants, wind turbines, PV systems and IT systems. Technical data Part No SPD according to EN Maximum continuous operating voltage (AC) U C 760 V Lightning impulse current (10/350) I imp 35 ka Lightning impulse current (10/350) I imp 35 ka 2.5 kv 4,0 kv DBM 1 CI 440 FM Single-pole DBM 1 CI 760 FM Single-pole

8 DEHNguard CI for 230/400V applications backup fuse Status indication Varistor Floating remote signalling contact DEHNguard CI for 400/690V applications backup fuse Status indication Varistor 8 Floating remote signalling contact

9 DEHNguard CI: Modular type 2 arrester with integrated backup fuse The modular DEHNguard CI surge arresters, in the functional Red/Line design, provide surge protection in a module which is only one standard DIN module wide. DEHNguard CI sets new standards in terms of saving space, ease of use and safety. The FM version of DEHNguard CI features a floating remote signalling contact. Benefits of DEHNguard CI: and monitored backup fuse System availability in case of a fault Fast assessment of the operating state Replacement of modules without tools Module locking system Suitable for all system s Top performance thanks to the coordination of fuse and SPD Benefits of the integrated backup fuse: Maximum system availability Low space requirement Fast installation Universal use fuse monitoring Short cable length 9

10 DEHNguard M/S CI 2 arrester with integrated backup fuse DEHNguard M/S CI is a modular surge arrester with integrated backup fuse and a width of one standard DIN module. System availability is ensured even if the arrester is overloaded. For systems which require high availability, e.g., in hospitals, airports, safety systems, computer centres, etc. DEHNguard SE CI 440 FM 2 arrester with integrated backup fuse DEHNguard SE CI is a modular surge arrester with integrated backup fuse and a width of 1.5 standard DIN modules. System availability is ensured even if the arrester is overloaded. For 400 / 690 V industrial feeders (high performance machines), chemical plants, wind turbines, PV systems and IT systems. Technical data SPD according to EN Technical data SPD according to EN Maximum continuous operating voltage AC U C 275 V Maximum continuous operating voltage AC U C 440 V Nominal discharge current (8/20) I n 12.5 ka Nominal discharge current (8/20) I n 12.5 ka Maximum discharge current (8/20) I max 25 ka 2.0 kv Short-circuit withstand capability 1.5 kv 25 ka rms Short-circuit withstand capability 25 ka rms DG M TNC CI 275 TN-C DG M TNC CI 275 FM TN-C * DG M TNS CI 275 TN-S DG M TNS CI 275 FM TN-S * DG M TT CI 275 TT and TN-S DG M TT CI 275 FM TT and TN-S * DG M TN CI 275 TN DG M TN CI 275 FM TN * DG M TT 2P CI 275 TT and TN DG M TT 2P CI 275 FM TT and TN * DG SE CI 440 FM * with remote signalling contact

11 DEHNguard SE CI WE 440 FM 2 arrester with integrated backup fuse DEHNguard SE CI WE is a modular surge arrester with integrated backup fuse and a width of 1.5 standard DIN modules. System availability is ensured even if the arrester is overloaded. For 400 / 690 V industrial feeders (high performance machines), chemical plants, wind turbines, PV systems and IT systems. The high varistor rating makes it ideal for converters with voltage peaks. V NH, VA NH 2 arrester with integrated backup fuse Thanks to their application-optimised mechanical design, V NH and VA NH arresters can easily be integrated in busbar systems. A signalling pin functions as a visual indicator. System availability is ensured even if the arrester is overloaded. Particularly for retrofits and in TNC busbar systems. Technical data SPD according to EN Maximum continuous operating voltage 440 V AC U C Technical data SPD according to EN Maximum continuous operating voltage 280 V AC U C Varistor rated voltage (U mov ) 750 V Nominal discharge current (8/20) I n 15 ka Nominal discharge current (8/20) I n 12.5 ka Maximum discharge current (8/20) I max 30 ka 3.0 kv 1.5 kv Short-circuit withstand capability 25 ka rms Short-circuit withstand capability 25 ka rms DG SE CI WE 440 FM V NH Single-pole, NH size V NH FM with signal pin for remote signalling V NH1 280 Single-pole, NH size VA NH Single-pole, NH size VA NH FM with signal pin for remote signalling VA NH1 280 Single-pole, NH size

12 Surge Protection Lightning Protection Safety Equipment DEHN protects. DEHN + SÖHNE GmbH + Co.KG. Hans-Dehn-Str. 1 P. O. Box Neumarkt Germany Phone Fax info@dehn.de Follow us on Facebook, LinkedIn, YouTube, Google+, Xing. For information on our registered trademarks, please visit We accept no liability for technical modifications, misprints and errors. Illustrations are not binding. DS196/E/1217 Copyright 2017 DEHN + SÖHNE