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OPTO-F+E 3.0

The OPTO-F+E 3.0 device is a combined short-circuit and earth fault indicator. Due to its measuring principle, the earth fault indication is suitable for networks with low-impedance or solidly earthed neutral as well as for operation in radial or open ring networks.

Short-Circuit and Earth Fault Indicator

Product Features

  • Fibre optic cables for electrical isolation between indicator and current transformers
  • High-intensity LED indication
  • Single and double flash mode for operation in radial and ring networks
  • Remote indication via relay contact
  • Current transformer retrofit ability

The OPTO-F+E 3.0 device is a combined short-circuit and earth fault indicator. Due to its measuring principle, the earth fault indication is suitable for networks with low-impedance or solidly earthed neutral as well as for operation in radial or open ring networks.

In the event of a short-circuit, the current transformers mounted on the conductors emit light signals via fibre optic cables to the evaluation unit in the housing where they are indicated as a short-circuit by phase-selectively operated red flashing LEDs.

After the first tripping incident (e. g. in radial systems) the LEDs begin a phase- selective flash rhythm of: flash / pause / flash.

A second tripping (e. g. ring operated network with ARC/RR) is indicated by flashing LEDs of the fault-affected phases in a flash-flash / pause / flash-flash rhythm.

 

 

Equipment set:

  • 1 Display unit (plug-in/surface mount housing)
  • 3 Short-circuit current transformers
  • 1 Summation current transformer
  • 4 Fibre optic cables

Product

Note Item Number

Display unit in the plug-in housing

Item Number36-0323-001

Display unit in the surface mount housing

Item Number36-0313-001


Technical Data

Technical Data

OPTO-F+E 3.0

Short-circuit indicator

Earth fault indicator

I>> Short-circuit trip current 

400, 600, 800 or 1,000 A (adjustable, further trip current levels on request)

tI>> Response delay 

40, 60, 80, 100, 200, 300, 500 ms (adjustable)

IE> Earth fault trip current

10, 20, 40, 80 A or
40, 80, 120, 160 A (adjustable)

tIE> Response delay 

60, 100, 200 ms (adjustable)

Accuracy

±15 % (determined by current transformer)

Indication

Indication
3 red LEDs for phase-selective short-circuit
1 yellow LED for earth fault,
flashing period 2 s,
double flash sequence 0.3 s with flashing period of 3 s
Optional: external signal lamp

Remote signal

2 Relay contacts

Relay contact

Potential-free permanent or momentary contact (adjustable)
Contact capacity: 380 V AC/5 A/1,250 VA max.
220 V DC/5 A/150 W max.

Reset

Manual reset
Automatic time reset: 1, 2, 4, 8 h (adjustable)
Voltage restoration or by applied external voltage supply
≥10 s (can be activated via DIP switch)
Remote reset

Remote reset/remote test

Separate inputs, potential-free NO contact, wiping time of NC contact ≥0.5 s

Power supply

Long-life lithium cell, active flashing time >1,000 h, lifetime ≥20 years
Auxiliary supply, integrated in the device:
12 – 110 V DC ±10 % or
24 – 60 V AC, 50 – 60 Hz, ±10 %
Optional accessories:
Transformer with cable for top-hat rail or screw mounting
(115 – 230 V AC/24 – 48 V AC)

Housing

Polycarbonate, IP40 (Plug-in housing), IP65 (Surface mount housing)

Temperature range

-30 to +70 °C 

 

Accessories

Current transformers

Short circuit current transformers

  • for short-circuit indicator types OPTO-F 3.0, OPTO F+E 3.0
  • Trip current 400, 600, 800 or 1,000 A
  • for conductor Ø 22 – 42 mm

more...
49-0101-202
Short circuit current transformers

  • for short-circuit indicator types OPTO-F 3.0, OPTO F+E 3.0
  • Trip current 400, 600, 800 or 1,000 A
  • for conductor Ø 40 – 60 mm

more...
49-0101-203
Earth fault current transformers

  • for short-circuit indicator types OPTO F+E 3.0
  • Trip current 40, 80, 120 or 160
  • for conductor up to 115 mm

more...
49-6014-009
Earth fault current transformers

  • for short-circuit indicator types OPTO F+E 3.0
  • Trip current (10), (20), 40 or 80
  • for conductor up to 115 mm

more...
49-6014-007
Short circuit current transformers

  • for short-circuit indicator types OPTO-F 3.0, OPTO F+E 3.0
  • Trip current 400, 600, 800 or 1,000 A
  • for conductor 20 x 4 – 40 x 10 mm

more...
49-0101-206
Earth fault current transformers

  • for short-circuit indicator types OPTO F+E 3.0
  • Trip current 80, 120, 160 or 200
  • for conductor 280 x 50 mm, oval summation current transformer for SF6- gas-insulated switchgears

more...
49-6014-022
Earth fault current transformers

  • for short-circuit indicator types OPTO F+E 3.0
  • Trip current 80, 120, 160 or 200
  • for conductor 350 x 50 mm, oval summation current transformer for air-insulated switchgears

more...
49-6014-021

External Signal Lamps

External Signal Lamp

  • with 3 LEDs (red)
  • 5 m connection cable, for permanent contact, with battery

more...
49-0702-005

Other

Fibre optic cable

Fibre optic cable: 3 m (standard length for short-circuit current transformers)

more...
49-0602-009
Fibre optic cable

Fibre optic cable: 4 m (standard length for earth fault current transformers)

more...
49-0602-001
Cutting tool for fibre optic cables

Cutting tool for fibre optic cables

more...
49-0109-003
Transformer

  • Transformer with cable for top-hat rail mounting
  • (115–230 V AC/24–48 V AC)

more...
49-0921-002
Optical testing unit

  • Optical testing unit to excite the indicator
  • for connection to the FOC plug

more...
49-0109-002
Disassembly clip

Disassembly clip for retracting plug-in housings

more...
040401-0008
Spring clip

Spring clip suitable for 2 mm front plate thickness (standard)

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040804-0009
Spring clip

Spring clip suitable for 3 mm front plate thickness

more...
040804-0010

Dimensioned Drawings

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