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Distance 1 km

Glass

Distance 25 m

Plastic

Losses in connection box, two contacts (1 dB/contact) - 2 dB

Margin for 2 repair splices (0.5 dB/splice) 1 dB -

Maximum total attenuation 11 dB 7 dB

Section 6 1MRK 504 165-UUS -

Establishing connection and verifying the SPA/IEC communication

64 Transformer protection RET670 2.2 ANSI

Commissioning manual

Other manuals for ABB RET670

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General

Rated Frequency	50/60 Hz
Inputs	Analog and binary inputs
Application	Protection of power systems
Communication Protocols	IEC 61850, DNP3, Modbus
Operating Temperature Range	-25°C to +55°C
Mounting	Rack mounted
Number of Binary Inputs	Up to 48
Number of Binary Outputs	32
Protection Functions	Overcurrent Protection
Outputs	Binary outputs
Enclosure	IP 54
Type	Line Differential Protection
Number of Analog Inputs	24