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Sun Jan 20 15:52:06 2019
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Sun Jan 20 15:52:06 2019
ISOSCAN® EDS490-D

ISOSCAN® EDS490-D

  • Automatic insulation fault location
  • Application main circuits
  • 12 measuring channels for measuring current transformers
  • CT connection monitoring
  • Universal system concept

The insulation fault evaluator of the EDS460/490 series in combination with the ISOMETER® IRDH575 or the insulation fault test device PGH is designed to localize insulation faults in unearthed power supplies (IT systems). The test current signals generated by the insulation monitoring device IRDH575 or the insulation fault test device PGH are scanned by measuring current transformers and evaluated by the insulation fault evaluators. Up to 12 measuring current transformers can be connected to one EDS. A total of 90 EDS evaluators can be con­nected via one RS-485 interface (BMS protocol). Hence, up to 1080 circuits can be monitored. The maximum scanning time is approx. 4…10 s, see TGH1394.

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  • Features
  • Applications
  • Accessories
  • Ordering information
  • Downloads
  • Insulation fault location and residual current measurement
  • For AC, 3AC, DC and IT systems
  • Control and display function within one device (EDS…D)
  • 12 measuring channels (circuits) for measuring current transformers of the W, WR, WS series
  • Up to 90 EDS evaluators in one system (1080 measuring channels)
  • Scanning time for all measuring channels 10 s
  • Response sensitivity
    EDS460/490 2…10 mA (100 Ω/V)
    EDS461/491 0.2…1 mA (1000 Ω / V)
  • History memory to store 300 events
  • Two alarm relays with one changeover contact each
  • N/O or N/C operation, selectable
  • Connection external reset / test button
  • Indication via graphical display resp. 7-segment display and alarm LEDs
  • BMS address range 1…90
  • Serial RS-485 interface
  • Continuous CT connection monitoring
  • Fault memory behaviour selectable
  • Device version EDS490/491 with one alarm contactor per channel
  • Additional residual current measurement
  • Insulation fault location in AC, AC/DC and DC IT systems
  • Main and control circuits in industrial installations and ships
  • Diode-decoupled DC IT systems in power stations
  • Systems for medical locations

 

Optional accessories for ISOSCAN® EDS490-D

Accessories
TypeSupply voltage USArt. No.
DI-1DL (interface repeater)AC 85…260 V, 50…60 HzB95012047
DI-2USB (interface converter RS-485/USB)supplied by the USB port, no additional power supply required.B95012045
AN471 (power supply unit for DI-1 or DI-2)AC 230 V 50/60 Hz/AC, DC 20 VB924189
Snap-on mounting W20…/35…B98080501
Snap-on mounting W60…B98080502
* Absolute values

Protocol converters
TypeSupply voltage US*Art. No.
COM460IPAC/DC 76…276 V, 42…460 HzB95061010
COM462RTUAC/DC 76…276 V, 42…460 HzB95061022
FTC470XDPDC 85…276 V / AC 85…276 V, 50…400 HzB95061000
*Absolute values

Measuring current transformers for EDS460/490
TypeInside diameter/mmType of constructionArt. No.
W2020circular-typeB98080003
W3535circular-typeB98080010
W6060circular-typeB98080018
W120120circular-typeB98080028
W210210circular-typeB98080034
WR70x17570 x 175rectangularB98080609
WR115x305115 x 305rectangularB98080610
WS20x3020 x 30split-coreB98080601
WS50x8050 x 80split-coreB98080603
WS80x8080 x 80split-coreB98080605
WS80x12080 x 120split-coreB98080606
WS80x16080 x 160split-coreB98080608

Alternative measuring current transformers from the Bender range
TypeInside diameter/mmType of constructionArt. No.
W10/60010circular-typeB911761
W0-S2020circular-typeB911787
W1-S3535circular-typeB911731
W2-S7070circular-typeB911732
W3-S105105circular-typeB911733
W4-S140140circular-typeB911734
W5-S210210circular-typeB911735
WR 70x175S70x175rectangularB911738
WR 115x305S115x305rectangularB911739
WR 150x350S150x350rectangularB911740
WR 200x500S200x500rectangularB911763
WS 50x80S50x80split-coreB911741
WS 80x80S80x80split-coreB911742
WS 80x120S80x120split-coreB911743
WS 80x160S80x160split-coreB911755

Measuring current transformers for EDS461/491
TypeInside diameter/mmType of constructionArt. No.
W20-800020circular-typeB98080009
W35-800035circular-typeB98080017
W60-800060circular-typeB98080027
WS20x30-800020 x 30split-coreB98080602
WS50x80-800050 x 80split-coreB98080604

Alternative measuring current transformers from the Bender range
TypeInside diameter/mmType of constructionArt. No.
W10/800010circular-typeB911759
W1-35/800035circular-typeB911756
WS20x30/800020 x 30split-coreB911764
WS50x80/800050 x 80split-coreB911757
W10/8000-610circular, 6xB911900

Variants of ISOSCAN® EDS490-D


TypeSupply voltage US*Response valueArt. No.
EDS490-D-1DC 16…94 V / AC 16…72 V, 42…460 Hz2…10 mAB91080009
EDS490-D-2AC/DC 70…276 V / AC 42…460 Hz2…10 mAB91080010
*Absolute value

Downloads for ISOSCAN® EDS490-D

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