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ABB RET670 Installation And Commissioning Manual

ABB RET670
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Never disconnect the secondary connection of current transformer
circuit without short-circuiting the transformer’s secondary
winding. Operating a current transformer with the secondary
winding open will cause a massive potential build-up that may
damage the transformer and may cause injuries to humans.
Never remove any screw from a powered IED or from a IED
connected to powered circuitry. Potentially lethal voltages and
currents are present.
Take adequate measures to protect the eyes. Never look into the
laser beam.
2.2 Caution signs
Always transport PCBs (modules) using certified conductive bags.
Always handle modules using a conductive wrist strap connected to
protective ground and on a suitable antistatic surface. Electrostatic
discharge (ESD) may cause damage to the module since electronic
circuits are sensitive to this phenomena.
Do not connect live wires to the IED. Internal circuitry may be
damaged
Always use a conductive wrist strap connected to protective ground
when replacing modules. Electrostatic discharge (ESD) may
damage the module and IED circuitry.
Take care to avoid electrical shock if accessing wiring and
connection IEDs when installing and commissioning.
Changing the active setting group will inevitably change the IEDs
operation. Be careful and check regulations before making the
change.
Section 2 1MRK 504 088-UEN C
Safety information
16
Installation and commissioning manual

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ABB RET670 Specifications

General IconGeneral
Rated Frequency50/60 Hz
InputsAnalog and binary inputs
ApplicationProtection of power systems
Communication ProtocolsIEC 61850, DNP3, Modbus
Operating Temperature Range-25°C to +55°C
MountingRack mounted
Number of Binary InputsUp to 48
Number of Binary Outputs32
Protection FunctionsOvercurrent Protection
OutputsBinary outputs
EnclosureIP 54
TypeLine Differential Protection
Number of Analog Inputs24

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