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SIGMA 2.0 – Autum 2016

Short-Circuit 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 2.0 device is a short-circuit indicator. It is designed to detect, display and remotely indicate short-circuits in medium voltage distribution networks.

The current is measured via current sensors which provide highly accurate readings. By using these sensors it is possible to retrofit subsequently to a higher indication generation at any time - without changing the sensors.

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)
3 Short-circuit current transformers


Product

Note Item Number

Display unit

Item Number37-1111-101


Technical Data

Tecnical Data

SIGMA 2.0

Short-circuit indicator

I>> Short-circuit trip current

200, 300, 400, 600, 800, 1.000 oder 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

Accuracy

±15 %

Indication

3 rote LEDs: 3 x Kurzschluss (L1, L2, L3)

Reset

  • Manual reset

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

  • Remote reset

Remote signal

1 Relay contact

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 to +70 °C

Accessories

Current Sensors

Short-circuit Current Sensor

  • Split-core cable-type current sensor
  • for retrofit on insulated cables
  • for short-circuit indicator types: SIGMA and ComPass
  • for conductor 15 – 55 mm Ø
  • cable length 3 m

more...
49-6024-001
Short-circuit Current Sensor

  • Split-core cable-type current sensor
  • for retrofit on insulated cables
  • for short-circuit indicator types: SIGMA and ComPass
  • for conductor 15 – 65 mm Ø
  • cable length 3 m

more...
49-6024-010
Single-phase Current Sensor

  • for new installation on bushings
  • for switchgear manufacturer
    • ABB type SafeLink, SafePlus
    • Schneider Electric type FBX
  • for short-circuit indicator type SIGMA and ComPass

Riquired order data:

  • for 1 set you need 3 single-phase current sensors

more...
49-6025-000
Single-phase Current Sensor

  • for new installation on bushings
  • for switchgear manufacturer
    • Driescher type MINEX, MINEX C, G.I.S.E.L.A.
  • for short-circuit indicator type SIGMA and ComPass

more...
49-6025-xxx on request
Single-phase Current Sensor

  • for new installation on bushings
  • for switchgear manufacturer
    • Lucy Electric type AegisPlus
  • for short-circuit indicator type SIGMA and ComPass

more...
49-6025-601
Single-phase Current Sensor

  • for new installation on bushings
  • for switchgear manufacturer
    • ORMAZABAL type GA, GAE, GE
  • for short-circuit indicator type SIGMA and ComPass

more...
49-6025-311
Single-phase Current Sensor

  • for new installation on bushings
  • for switchgear manufacturer
    • Schneider Electric type FBX
  • for short-circuit indicator type SIGMA and ComPass

more...
49-6025-6xx on request
Single-phase Current Sensor

  • for new installation on bushings
  • incl. 3 Sensors, module carrier and rivets, completely mounted
  • for switchgear manufacturer
    • Siemens type 8DJH
  • for short-circuit indicator type SIGMA and ComPass

more...
49-6025-611
Single-phase Current Sensor

  • for new installation on bushings
  • incl. 3 Sensors, module carrier and bar
    spacers, completely mounted
  • for switchgear manufacturer
    • Siemens type 8DJH
  • for short-circuit indicator type SIGMA and ComPass

more...
49-6025-612

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

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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Contact

Watch list