Why is the NGR continuously monitored in an HRG system?
The guide illustrates this model's “Coupling component for an NGR monitor” function with a product example.
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BENDER DISTRIBUTOR IN TÜRKİYE · ADEO TEKNİK
Bender CD1000NGR Coupling Device
Coupling device for monitoring HRG systems up to AC 690 V with an NGR monitor.
TECHNICAL SUMMARY
Features and intended use.
NGR Coupling Device
- ULL maximum 690 V; UNGR maximum 400 V.
- Operating altitude up to 2000 m.
- The document specifies unrestricted continuous operation.
- An earthed metal plate is required for cooling at the rated limit.
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MODEL, ORDER AND ACCESSORY INFORMATION
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Model options and technical values
| Model | Nominal system voltage U n | Order code |
|---|---|---|
| CD1000 | Up to U LL = 690 V ( U NGR = 400 V) | B98039010 |
Based on tables on the manufacturer's current product page. For marked-value footnotes, connection conditions and variant suitability, review Bender product source ↗ and the technical documents together. Listing an order code does not commit to stock availability or delivery time.
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APPLICATION
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For resistance-grounded systems, HRG/LRG classification is evaluated together with voltage, NGR resistance and current measurement conditions.
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