Instalaciones de fundición

Smooth operation of smelting facilities

Crucibles

Electrical Safety - a Hot Topic

The large crucibles and vats used in smelting systems are often moved by electric motors with various voltages and currents. Reliable uninterrupted power is required to prevent the molten metal from solidifying in these containers. The power supply or transformer grounding is often designed as ungrounded or resistance grounded. Bender fault location systems are available for both resistance grounded and ungrounded systems to quickly and automatically locates defective power circuits. Safety and uptime are both improved.

 

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Low-Voltage Power Distribution

Safe Power for Reliable Results

The power supply is critical to refining and smelting systems. The medium voltage supplied to the facility is transformed down to 480 V or 600 V and distributed through the facility via electrical cables or busbars often referred to as branch feeders. It is then either connected to loads or transformed to lower voltages. Depending on the system grounding either a Bender ISOMETER®s or RCMS residual current monitoring relays (ground-fault monitors) monitor these and help ensure continuous operation. Fault detection is only the first step in troubleshooting. The addition of downstream monitors and current sensors can allow quicker and safer location of ground faults. References mention that approximately 80-95% of the faults in a facility start as a phase-to-ground fault - making this time savings compound the return of investment.

 

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Downloads

NameCategorySizeLanguageTimestampD-/B-Number
Power Quality/Measuring and monitoring relays Product Overviews 2.7 MB EN2022/05/2525.05.2022
Product Overview ISOMETER®/ISOSCAN® Product Overviews 5.3 MB EN2024/02/1616.02.2024
Insulation Fault Location - Planning and Setup Technical Article 112.4 KB EN2019/05/1313.05.2019
Electrical Safety in Control and Auxiliary Circuits Technical Article 632.6 KB EN2019/05/1313.05.2019
Electrical Safety in a Modern Nickel Smelting Plant Technical Article 358.8 KB EN2019/05/1313.05.2019

Products

Ground-Fault Monitoring, Ungrounded

ISOMETER® iso685…
ISOMETER® iso685 Series

Ground-fault detector for ungrounded AC/DC systems

System Components

AGH150W-4
AGH150

Extension of the nominal voltage range of ISOMETER® iso685… series to AC 0…1150 V, DC 0…1760 V

AGH204S-4
AGH204S-4

Extension of the nominal voltage range of ISOMETER® iso685 series to AC, 3(N)AC 0...1650/0...1300 V

AGH520S
AGH520S

Extension of the nominal voltage range of ISOMETER® to AC 0...7200 V

AGH675S-7/AGH675S-7MV15
AGH675S-7

The coupling device AGH675S-7/AGH675S-7MV15 is designed to extend the nominal voltage range of the ISOMETER® IRDH275BM-7 to AC/DC 0…15.5 kV

AGH676S-4
AGH676S-4

Extension of the nominal voltage range of ISOMETER® iso685.../IR420-D64 series to AC 0...12 kV

Resistance Grounded Systems (HRG/LRG)

LINETRAXX® NGRM700

Monitor for use in high-resistance grounded systems

Power Quality

LINETRAXX® PEM353

Universal measuring device with numerous measured quantities, energy and power measurement with storage, Power Quality Monitoring, limit value monitoring with alarm forwarding

Ground-Fault Location, Ungrounded

ISOSCAN® EDS460-D
ISOSCAN® EDS460-D

- This device series is in the discontinuation phase. -
Deliverable according to availability until 01.01.2025.

ISOSCAN® EDS490-D
ISOSCAN® EDS490-D

- This device series is in the discontinuation phase. -
Deliverable according to availability until 01.01.2025.

Ground-Fault Monitoring, Ungrounded

ISOMETER® iso685…
ISOMETER® iso685 Series

Ground-fault detector for ungrounded AC/DC systems

Details

System Components

AGH150W-4
AGH150

Extension of the nominal voltage range of ISOMETER® iso685… series to AC 0…1150 V, DC 0…1760 V

Details
AGH204S-4
AGH204S-4

Extension of the nominal voltage range of ISOMETER® iso685 series to AC, 3(N)AC 0...1650/0...1300 V

Details
AGH520S
AGH520S

Extension of the nominal voltage range of ISOMETER® to AC 0...7200 V

Details
AGH675S-7/AGH675S-7MV15
AGH675S-7

The coupling device AGH675S-7/AGH675S-7MV15 is designed to extend the nominal voltage range of the ISOMETER® IRDH275BM-7 to AC/DC 0…15.5 kV

Details
AGH676S-4
AGH676S-4

Extension of the nominal voltage range of ISOMETER® iso685.../IR420-D64 series to AC 0...12 kV

Details

Resistance Grounded Systems (HRG/LRG)

LINETRAXX® NGRM700

Monitor for use in high-resistance grounded systems

Details

Power Quality

LINETRAXX® PEM353

Universal measuring device with numerous measured quantities, energy and power measurement with storage, Power Quality Monitoring, limit value monitoring with alarm forwarding

Details

Ground-Fault Location, Ungrounded

ISOSCAN® EDS460-D
ISOSCAN® EDS460-D

- This device series is in the discontinuation phase. -
Deliverable according to availability until 01.01.2025.

Details
ISOSCAN® EDS490-D
ISOSCAN® EDS490-D

- This device series is in the discontinuation phase. -
Deliverable according to availability until 01.01.2025.

Details

Standards

EN 61557-9

Elektrische Sicherheit in Niederspannungsnetzen bis AC 1 000 V und DC 1 500 V – Geräte zum Prüfen, Messen oder Überwachen von Schutzmaßnahmen - Teil 9: Einrichtungen zur Isolationsfehlersuche in IT-Systemen

EN 61557-8

Elektrische Sicherheit in Niederspannungsnetzen bis AC 1 000 V und DC 1 500 V – Geräte zum Prüfen, Messen oder Überwachen von Schutzmaßnahmen - Teil 8: Isolationsüberwachungsgeräte für IT-Systeme

EN 61557-15

Elektrische Sicherheit in Niederspannungsnetzen bis 1000 V AC und 1500 V DC - Geräte zum Prüfen, Messen oder Steuern von Schutzsystemen - Teil 15: Anforderungen an die funktionale Sicherheit von Isolationssteuergeräten in IT-Systemen und Geräten zur Erkennung von Isolationsfehlern in IT-Systemen

DIN EN 50156-1

Elektrische Ausrüstung von Feuerungsanlagen und zugehörige Einrichtungen - Teil 1: Bestimmungen für die Anwendungsplanung und Errichtung

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