Home / Relay / toshiba relay / Toshiba protection Relays GR-100 Series Line Differential Protection for Direct Fibre Pilot Wire Application GRL150
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Address: 469 Xinsheng Road, Gaoxin District, Chengdu, China
Tel: +86-28-67198331
Fax: +86-28-86129221
Email: sensor@esmachinery.com
Contact Person: Ivy
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GRL150 provides fully numerical phase-segregated line differential protection for use with short overhead lines or cable circuits. Communication with the remote terminal is either by pilot wire or direct fibre optic link. In the case of pilot wire communication, GRL150 can be connected to new or existing pilots up to 8km in length, either directly via in-built 5kV isolation, or using optional external 20kV isolating transformers. Direct fibre optic communication can be applied to circuits up to 20km in length.