voltage and frequency protection relay argus8.pdf
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7/29/2019 Voltage and frequency protection relay Argus8.pdf
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Numerical Voltage & Frequency Protection Relay -Argus 8
Numerical Voltage & Frequency Protection Relay
The Argus 8 range of numerical voltage and frequency relays
have the power and flexibility of microprocessor technology,
giving a wide range of settings which are supplemented by
advanced features such as metering, data storage and
Fibre-Optic communications. Supervisory and self-monitoring
features give added confidence to the user as well as reduced
maintenance and down time. A menu-based interface gives user-
friendly access to relay settings, meters and operational data.
Applications
• Capacitor Bank• Ungrounded/High impedance earthed system
• AC Generators
• Transmission Lines
• Distribution Feeders
Features
Protection• Over voltage (59)
• Under voltage (27)
• Neutral voltage displacement
• Negative sequence overvoltage (47)• Over Frequency (810)
• Under Frequency (81U)
Control• The basic 2 pole Argus 8 relay contains 7 programmable
output relays, 1 of which have 1 CO contact, 1 NC contact
and 5 have 1 NO contact
• The basic 3 pole Argus 8 relay contains 7 programmable
output relays, 3 of which have 1 CO contact and 4 have 1
NO contact. Expanded variants provides 4 extra output relays,
each having 1 NO contact
• The basic 2 pole Argus 8 relay contains 4 programmable
digital (status) input
• The basic 3 pole Argus 8 relay contains 1 programmable
digital (status) input, with an additional 4 or 8, provided in
expanded variants
Description
ARGUS 8
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Monitoring
• Trip circuit supervision (95)• Storage of 500 time-tagged event records
• Storage of 5 multiple waveforms and status records
• Records upto 10 faults
Metering• Primary RMS voltages
• Secondary RMS voltages
• Secondary RMS sequence voltages
• System frequency
User Interface
• User-friendly settings and indications
• Backlit liquid crystal alpha-numeric display with16-characters,2 lines
• LEDs for protection healthy, trip and starting
• Push buttons for programming and resetting
Communication
• Fibre-Optic or RS485 communication port at rear
• Data communication using IEC 60870-5-103 or MODBUS
RTU protocol
Wiring Diagram
Notes
1) Diagram shows 2ph-ph connections. See below for
alternative connection.
2) Diagram shows ph-E+ 3Vo connections.
3) Diagram shows ph-ph+3Vo connection.
4) For the Phase-Phase of Phase-Earth connections, any
phasing may be used.
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Technical Information
Input Rating AC Voltage 63.5 / 110V AC, 50 / 60Hz
Settings Voltage 1,2,3,4 5V to 200V ∆ 0.5V Definite time delay 0sec to 20s ∆ 0.01sec
20sec to 100s ∆ 0.5sec100sec to 600s ∆ 1.0sec
Output phases Any 1 or all phasesNegative sequence 1V to 100V ∆ 0.5V overvoltage 1, 2Definite time delay 0sec to 20sec ∆ 0.01sec
0sec to 100sec ∆ 0.5sec100sec to 600sec ∆ 1.0sec
Neutral voltage 1V to 100V ∆ 0.5V displacement 1,2Definite time delay 0sec to 20sec ∆ 0.01sec
20sec to 100sec ∆ 0.5sec100sec to 600sec ∆ 1.0sec
Frequency 1,2,3,4 47Hz to 62Hz. 0.01HzDefinite time delay 0sec to 20sec ∆ 0.01sec
20sec to 100sec ∆ 0.5sec100sec to 600sec ∆ 1.0sec
DC Auxiliary Supply Nominal Operating range
24, 30, 48 V 18-60 V 110, 220 V 85-280 V
Output relays
• The basic 2 pole Argus 8 relay contains 7 programmable
output relays, 1 of which have 1 CO contact, 1 NC contact
and 5 have 1 NO contact
• The basic 3 pole Argus 8 relay contains 7 programmable
output relays, 3 of which have 1 CO contact and 4 have
1 NO contact. Expanded variants provides 4 extra output
relays, each having 1 NO contact
Contact ratings
Carry continuously 5A AC RMS or DCMake and carry 30A AC or DC for 0.2secBreak 75W DC resistive
1250VA AC resistive
DC Digital (status) inputs
• The basic 2 pole Argus 8 relay contains 4 programmabledigital (status) input
• The basic 3 pole Argus 8 relay contains 1 programmable
digital (status) input, with an additional 4 or 8, provided in
expanded variants
Auxiliary voltage Operating range
30V DC 18-37.5V DC
48V DC 37.5- 60V DC
110/125V DC 87.5-137.5V DC
220/250V DC 175 - 280V DC
For relay with 110/125V DC or 220/225V DC auxiliaryvoltage, a 48 voltage input is supplied for use with externaldropper resistors: 110/125V resistor 2K7 ± 5% 2.5W220/250V resistor 8K2 ± 5% 6.0W
Indications
User-friendly settings and indications
LCD Alphanumeric display for settings,instruments and fault data
EnvironmentalTemperature IEC 68-2-1/2Operating range -10°C to +55°CStorage range -25°C to +70°CHumidity IEC 68-2-356 days at 40°C and 93% relative humidity
Vibration IEC 255-21-1 class IShock and bump IEC 255-21-2 class ISeismic IEC 255-21-3 class IInsulation IEC 255-52KVrms for 1 minute between all terminals and earth.2KVrms for 1 minute between independent circuits.1KVrms for 1 minute across NO contacts.Transient overvoltage IEC 255-4 class III5KV 1.2/50µs between all terminals and earth withoutdamage or flashover High frequency disturbance IEC 255-22-1 class III2.5KV common mode < 3% deviation1.0KV series mode < 3% deviationElectrostatic discharge IEC 255-22-2 class III
8KV direct without maloperation or damageRadio frequency IEC 255-22-3disturbance20MHz to 1GHz at 10V/m < 5% deviationFast transient IEC 255-22-4 class IV 4KV 5/50ns < 3% deviation
Mechanical ClassificationDurability 106 operations
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Cutout Details
• Two or three pole• Protection requirement (ie voltage or voltage and
frequency)• Auxiliary digital (status) input voltages• No. of output contact and digital (status) input on three pole
versions
ISO 9001 - 2000
Case Weight
Argus 8 - E4
3.3 kg Argus 8 - E6 4.8 kg
Ordering Information
Qualification
SIZE 4 CASE SIZE 6 CASE
A B C A B C
103 99. 5 5 2 155 1 51 1 03. 5
MODULAR CASES: SIZES 4-6
F A C T / A R G U S
8 / 1 2 -
0 5 / R e v
0
The policy of Easun Reyrolle is one of continuous improvement and development. The company therefore reserves the right to supply equipment, which
may differ slightly from that described and illustrated in this publication.
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