MainsPro Mains Decoupling Protection Relay (G59/G99)

MainsPro Mains Decoupling Protection Relay (G59/G99)

£542.45

£650.94 inc. VAT

Product Description

MainsPro is a protection relay for parallel-to-mains applications. Voltage, frequency and loss of mains protections are easily adjustable to safeguard both the generators and the distribution network. This unit is designed to fully comply with utilities' connection requirements and statutory codes, offering a high level of protection.

Product Features:
  • IEC 602 55, G59 and G59/2, UL, VDE-V-0126-1-1I, and En NR 005/2012 approved
  • Suitable for standard DIN-Rail installation or Panel-Mount (Optional)
  • Integrated mechanical lock to secure your setting
  • True RMS measurement
  • Universal Power Supply: 8-40V DC, 85-265V AC, 110-370V DC selectable
  • Voltage range: 120/230/400VAC with over-range to 156/290/520V AC (independent)
  • Vector Shift and Rate of change of frequency (ROCOF)
  • Symmetrical components for better detection of Voltage asymmetry failure
  • Two stage settings of voltage and frequency protections to cover short term as well as long term disturbances with appropriate priority
  • Last trip recorded providing evidence of the cause
  • 4 Binary switches to remotely change operation of the unit
  • Adjustable time delay of Automatic Fault Reset

Specification

Protective Functionality:

  • Undervoltage
  • Overvoltage
  • Overfrequency
  • Underfrequency
  • Vector shift
  • Rate of change of frequency + ROCOF filter
  • Voltage asymmetry
  • Positive sequence undervoltage
  • Negative sequence overvoltage
  • Phase sequence supervison
  • Binary switches: Ext. trip, Fault reset, active/de-active, alternative parameters
  • 10 minute floating average overvoltage

LED Meanings

Meaning of signalling LEDs

LED

Colour

Meaning

TRIP

Red

The unit has the appropriate outputs in TRIP position and the unit is sensing a fault situation

Red flashing

The unit has the appropriate outputs in TRIP position, but the unit is sensing fault-free situation. Fault reset is possible.

Nothing

The unit has no output in TRIP position

U

Red flashing

Voltage of any phase is above threshold for 1st or 2nd stage overvoltage

Red

Voltage of any phase is under threshold for 1st or 2nd stage undervoltage

Orange flashing

Voltage unbalance (amplitude) is indicated.

If activated together with LED f and LOM, indicates incorrect phase rotation

Orange

Negative sequence overvoltage or Positive sequence undervoltage is indicated.

If activated together with LED f and LOM, indicates incorrect polarity of one phase

Green

All voltages are in fault-free state

Green flashing

10 minutes floating average overvoltage is detected

Nothing

Over/under voltage protections are not enabled by setpoint and no other voltage failure is sensed

f

Red flashing

Frequency as sensed on terminals Ua is above threshold for 1st or 2nd stage overfrequency

Red

Frequency as sensed on terminals Ua is under threshold for 1st or 2nd stage underfrequency

Orange flashing

Together with LED U and LOM, indicates incorrect phase rotation

Orange

Together with LED U and LOM, indicates incorrect polarity of one phase

Green

Frequency, rotation and phases polarity are in fault-free state

Nothing

Over/under frequency is protections are not enabled by setpoint and no other indicated failure is sensed

LOM

Red

Vector shift or ROCOF protection was indicated and Fault reset was not yet done

Orange flashing

Together with LED U and f, indicates incorrect phase rotation

Orange

Together with LED U and f, indicates incorrect polarity of one phase

Nothing

None of Vector shift or ROCOF failure is detected or neither Vector shift nor ROCOF protections are not enabled by setpoint and no other indicated failure is sensed

Status

Red flashing

Indication of severe internal failure. Contact ComAp technical support!

Meaning of signalling LEDs

LED

Colour

Meaning

Orange flashing

Indication of internal failure. Contact ComAp technical support!

Orange

Indication of internal failure. Contact ComAp technical support!

Green

The unit is in operation with no internal problems.

Nothing

The unit is not in operation

Alt

Orange

The function Alternative setting is activated by means of binary switch Alt setting.

Nothing

The function Alternative setting is not activated

Dis

Orange

The unit is disabled by means of binary switch Disable

Nothing

The unit is not disabled by means of binary switch Disable

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