E& BENDER The Power in Electrical Safety6

Coupling device CD25000 Product description The CD25000 can be used with an NGR monitor in HRG systems with a system voltage up to Ull = 25 kV (Ungr = 14.5 kV). The maximum operating altitude is 5000 m above mean sea level. • The coupling device is suitable for HRG applications up to AC 25 kV and/or DC 14.5 kV. The combination of an NGRM... and a coupling device extends the range of application of the neutral grounding resistor monitor up to a system voltage of 25 kV. The duty time is limited to 10 s (minute), the cool-down period is 120 minutes. Ordering details Device features • Coupling device...

Internal wiring diagram CD25000 Wiring diagrams Wiring diagram i The „N“ terminal of the CD25000 should be connected directly to the star point of the transformer, so that the connection between NGR and star point is also monitored. A direct connection between the „N“ connections of the CD25000 and the NGR is not recommended, as in this case a line interruption between the star point and the NGR connection „N“ would not be monitored.

Technical data Rated insulation voltage no galvanic separation between the circuits! Voltage range Operating time without ground fault (2800 V) with ground fault (14500 V) Cool-down period Overload capacity unlimited 10 seconds 120 minutes 1.15 x Un for < 10 seconds Classification of mechanical conditions acc. to IEC 60721 Connection RS and E Tightening torque Conductor sizes Stripping length Conductor, rigid Conductor, flexible Multiple conductor, flexible with ferrule without plastic sleeve with ferrule with plastic sleeve Multiple conductor, flexible with TWIN ferrule with plastic sleeve Connection...