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AC–DC and frequency relays

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RELAY FOR CAPACITIVE DIVIDER

Downloads:

rpt23

, ,

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Compatible with capacitive dividers, transformers, and AC + DC resistive bridges
• AC and DC voltage monitoring TRMS measurement: 10 ……400Vac, 600Vdc
Voltage presence and absence thresholds for single-phase, three-phase, or DC networks
• Direct measurement, capacitive divider, or transformer High input impedance
Compatible with neon indicators at the capacitive divider output
• Voltage and fault display for quick diagnostics
• Configuration: Pushbutton under the swivel front panel
• Power supply: Universal 20–265 Vac/dc
• SIL2 option

The RPT23 relay, when used in conjunction with a capacitive divider, for example, monitors the presence or absence of AC voltage
on a medium- or high-voltage network. It can be used to signal a change in the network's status.

VOLTAGE AND CURRENT RELAYS

rpl34hig

Downloads:

rpl34hig

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• Voltage, current, and power monitoring
Voltage measurement: ±1500 Vdc max
Current measurement: ±150 mVdc max for external shunt
Calculation of power consumed or generated
• 3 configurable alarm relays: Undervoltage, overvoltage, overcurrent, undercurrent, power limit exceeded, underload, etc.
• 10 kVdc insulation, 10 mm internal creepage distance
• Display of measurements and faults
• Configuration via pushbutton under the swivel front panel
• Universal power supply 20–265 Vac-dc
• SIL2 option according to IEC 61508

The RPL34Hig relay is designed to monitor systems requiring a very high level of isolation—
ly in the railway, photovoltaic, and DC machinery sectors.

AC AND DC VOLTAGE RELAY

Downloads:

rpl23

, ,

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DOWNLOAD THE COMPLETE DATA SHEET
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Phase and Frequency Control Relay • DC and AC voltage and frequency monitoring (5 Hz…50 Hz…60 Hz…70 Hz – 400 Hz)
TRMS measurement (true RMS AC+DC)
Monitoring: Under-voltage, over-voltage, imbalance, and phase loss; under-frequency, over-frequency
for single-phase or three-phase networks or DC voltage compatible with variable-speed drives (built-in PWM filter)
• Phase sequence monitoring (optional)
• RPL23uC: Micro-outage detection relay
• RPL23peak: Peak voltage detection relay
• RPL23Ho: Zero-sequence voltage protection relay
• RPL23F: Frequency control relay up to 400 Hz
• Voltage and fault display for rapid diagnostics
• Configuration via pushbutton under the swivel front panel
• Universal auxiliary power supply 20–265 V AC/DC or 100–400 V AC/DC
• SIL2 option

The RPL23 network monitoring relay provides maximum protection for machinery and equipment
and detects network and voltage faults to prevent any serious consequences.

FREQUENCY CONTROL RELAY

rcf35

Downloads:

  • Manual
  • Additional file 1
  • Additional file 2
  • Supplementary file 3
  • Supplementary file 4
  • Supplementary file 5
  • Supplementary file 6
  • Supplementary file 7
  • Supplementary file 8
  • Direct link 1
  • Direct link 2
  • Manual
  • Additional file 1
  • Additional file 2
  • Supplementary file 3
  • Supplementary file 4
  • Supplementary file 5
  • Supplementary file 6
  • Supplementary file 7
  • Supplementary file 8
  • Direct link 1
  • Direct link 2

rcf35

, ,

Download the complete fact sheet
DOWNLOAD THE COMPLETE DATA SHEET
REQUEST A QUOTE

• Monitoring of mains frequency variations Self-powered: 115Vac, 230Vac, 400Vac
for mains frequencies from 40 Hz to 450 Hz
• 1000-point LED frequency display
Resolution: 0.1 Hz < 100 Hz; 1 Hz up to 450 Hz
• Threshold configurable via front panel pushbutton, adjustment resolution 0.1 Hz
• Over- and under-frequency via 2 relay outputs; direction and delay configurable; status indication via LED
• DIN rail mounting, 2 modules (35 mm)
• Application: Monitoring of electrical power sources – generator, wind turbine, micro power plants, etc.

The RCF35 is a compact relay designed to monitor frequency variations on 50 Hz, 60 Hz
, and 400 Hz power grids. It enables under- and over-frequency monitoring through the adjustment of two independent thresholds. A 3-digit LED display shows the grid frequency.