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SIGMA F+E 2.0

By using the new current sensors, an upgrade to a higher indicator generation is possible.

Short-Circuit and Earth Fault Indicator

Product Features

  • Short-circuit and earth fault detection from only 3 single-phase current sensors
  • Phase-selective fault indication and Fault signalling
  • Subsequent retrofitting to SIGMA F+E 3, SIGMA D/D+/D++, ComPass A/B possible
  • Load-dependent self-adjustment of fixed values
  • Single- and double flashing mode for ring and radial operated distribution networks

 

The SIGMA F+E 2.0 device is a combined short-circuit and earth fault indicator. Due to the measuring principle the earth fault indication is suitable for networks with low-impedance or solidly earthed neutral.

When the phase current exceeds the preset trip current level and the period of the preset response delay, or when the phase current exceeds the previously flowing operating current by a defined factor (self-adjustment), the fault-affected phase will be indicated by a bright flashing LED. At the same time, the remote signal contact will be activated. A double flashing LED signals a second fault that has occurred within the reset time, e. g. by automatic re-closure. The device provides automatic reset options, either after expiry of a preset time or by closing an external input contact, or it can be reset manually by pressing the “Test“ button. A function test can also be carried out either by the “Test” button or an external input contact.

The switches on the front face of the device are used to adjust trip current values, response delay thresholds, and periods for timed reset, as well as the required remote signal contact type (permanent or momentary contact).

Equipment set:

1 Display unit (plug-in/surface mount housing)
2 Short-circuit current transformers
1 Summation current transformer



Technical Data

Technical Data

SIGMA F+E 2.0

Short-circuit indicator

Earth fault indicator

I>> Short-circuit trip current

200, 300, 400, 600, 800, 1.000 or 2.000 A, fixed settings
Auto-setting as a function of the operating current (IL):
IL < 100 A ⇒ I>> = 400 A, IL > 100 A ⇒ I>> = 4 x IL, I>> max. = 2.000 A

tI>> Response delay

40 ms or 80 ms

IE> Earth fault trip current

20, 40, 60, 80, 100, 120 or  160 A

tIE> Response delay

80 or 200 ms

Accuracy

±15 %

Indication

3 red LEDs: 2 x short-circuit(L1, L3),
1 x earth fault or short circuit (L2)

Reset

  • Manual reset

  • Automatic time reset: 1, 2, 4 or 8 h, adjustable

  • Remote reset

Remote signal

2 relay contacts

Relay contact

Potential-free permanent and momentary contact (1 s), adjustable
Contact capacity:
230 V AC/1 A/62,5 VA max.
220 V DC/1 A/60 W max.

Power supply

  • Long-life lithium cell, lifetime ≥20 years, >1,000 h total flashing time

  • Optional: external power supply, incorporated in the device: 12 – 60 V DC

Housing

Polycarbonate, IP40

Temperature range

-30 °C bis +70 °C

Accessories

Current Sensors

Single-phase current sensor

  • For new installation on bushings
  • For switchgear manufacturer
    • ORMAZABAL GA/GAE, GE
  • Ø 84 mm

Required order data:

For a set you need 3 single-phase current sensors.

more...
49-6025-311
Single-phase current sensor

  • For new installation on bushings
  • For switchgear manufacturer
    • Driescher type MINEX, MINEX C, G.I.S.E.L.A.
  • Ø 84 mm

Required order data:

  • For a set you need 3 single-phase current sensors.


*For screened connectors only. Insulation level: 0,72/3 kV

more...
49-6025-601*
Single-phase current sensor

  • For new installation on bushings
  • For switchgear manufacturer
    • Schneider Electric type FBX
  • Ø 84 mm


Required order data:

  • For a set you need 3 single-phase current sensors.

more...
49-6025-622
Single-phase current sensor

  • Split-core cable-type current sensor
  • For retrofit on insulated cables
  • For conductor 15 – 55 mm Ø
  • cable length 3 m

more...
49-6024-001

Wall-mounted Housings

Wall-mounted housing including earthing bar

  • 290 x 74 x 200 mm (W x H x D)

more...
V49-9001-007-001
Wall-mounted housing including earthing bar

  • 125 x 175 x 125 mm (W x H x D)

more...
V49-9001-004-001
Wall-mounted housing

  • 125 x 75 x 125 mm (W x H x D)

  • Bottom cable entry

more...
49-9001-001
Wall-mounted housing

  • 125 x 75 x 125 mm (W x H x D)

  • Rear cable entry

more...
49-9001-002

Other accessories for short-circuit and earth fault indicators

Disassembly clip

  • For retracting plug-in housings type Alpha, Opto, Earth  and Sigma

more...
49-9090-016
Spring clip

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

more...
49-9090-018
Spring clip

Spring clip suitable for 3 mm front plate thickness

more...
49-9090-019

Dimensioned Drawings

Product

Note Item Number

Display unit

Item Number37-2111-101


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