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Protection,Automation & Control
Protection&Control Digital Substation Automation Phasor Measurement Disturbance Fault Recording Stability Control System Power Grid Monitoring and Control Configuration Tool Accessories
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Accessories
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Safe and reliable operations of substations not only rely on protection and control relays. NR provides accessories including interposing relay set, operating relay and auxiliary relay set to achieve the success of power system project.
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MD1501 Series Auxiliary Relays
MD1501 series auxiliary relays are mainly used with main protection and control devices. Each relay type is designed with a specific function. Each relay is independent from others with high configurability and extensibility. Relay types are continuously developed in order to meet the requirements of various applications.
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MD1701 Series Test Blocks
MD1701 series products, including test blocks, test plugs and accessories cooperate with protection relays to provide online monitoring/testing for power system protection schemes. With the application of MD1701 series test blocks, operation security can be ensured. Moreover, monitoring, isolation and secondary injection testing can be simplified and quickly performed.Available models of MD1701 series products are listed below:MD1701-01/02 MD1701 series products can be installed at secondary sides of CTs/VTs, or installed in the signal sampling circuit of IEDs in power syst…
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MD1701S Test Block
MD1701S test block cooperates with the CJ28TS test plugs to provide safe, flexible and reliable access to power system protection or measurement scheme for monitoring, verification and secondary injection testing. CJ28TS test plug can be plugged into the MD1701S test block, and they can be fixed together by using two screws. MD1701S test block provides 7 subtypes to meet various requirements as shown in the following figure. E.g.: “MD1701S-4I6U” means 4 current channels and 6 voltage channels are provided.
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