E& BENDER The Power in Electrical Safety6

Coupling device CD14400 Coupling device CD14400 Product description The CD14400 can be used with an NGR monitor in HRG systems with a system voltage Ull up to 14.4 kV (Ungr = 8.4 kV). The maximum operating altitude is 5000 m above mean sea level. • The coupling device is suitable for HRG applications up to a system voltage of 14400 V. The combination of an NGR monitor and a coupling device extends the range of application of the neutral grounding resistor monitor up to a system voltage of 14.4 kV. The duty time is limited to 60 s (1 minute), the cool-down period is 120 minutes. Ordering details...

Wiring diagrams Wiring diagram Internal wiring diagram CD14400 £ The „N“ terminal of the CDI4400 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 CDI4400 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! Classification of mechanical conditions acc. to IEC 60721 Voltage range Operating time without ground fault (1900 V) with ground fault (4200 V) with ground fault (8400 V) Cool-down period Overload capacity unlimited 90 seconds 60 seconds 120 minutes 1.15 x Un for < 30 seconds Connection RS and E Tightening torque Conductor sizes Stripping length Conductor, rigid Conductor, flexible Multiple conductor, flexible with ferrule without plastic sleeve with plastic sleeve Multiple conductor, flexible with TWIN ferrule...