Rờ le bảo vệ Phase Current & Ground Directional Protection Relay Model SMPR-2 , Orion Italia
The SMPR has been designed to measure line currents and thermal image, ground RMS current under normal conditions or under disturbances. This information is internally processed by the microprocessor, to take the protection actions defined by the user under ANSI, IAC or IEC standards. The operational conditions of the breaker or disconnector are also signalized.
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Thông tin sản phẩm
Bình luận
Primary and backup protection for utility feeder, power plants and industrial distribution systems
Protection of transformers, overhead lines, cables and generators
Protection and Functionality
(49) Thermal Overload
(50) Instantaneous phase overcurrent
(50N/50G) Instantaneous ground overcurrent
Overload alarm pickup level
(51) Inverse time phase overcurrent
(51N/51G) inverse time ground overcurrent
ANSI, IAC or IEC/BS142 curves included:
moderately inverse
normal inverse
very inverse
extremely inverse
definite time
(67N) Neutral Directional Overcurrent
(68) Blocking output
(86) Lockout
Accumulated KA per phase on breaker interruption
Features
CT primary ratio selectable in 5 A steps (5 to 6000 A)
Touchpad programming
1 trip relay
3 auxiliary relays that can be associated to the various functions
Power loss or internal fault control relay
3 programmable Digital inputs and 1 Digital input for breaker status
Breaker operation failure alarm on trip command
Signalling
LED and LCD display indication
Last trip cause and relative data
Indication and storage of fault condition and their values
Indication of the breaker status (open, close, earthed)