Type B residual current protection

Description

Electronic residual current current protection and monitoring relay (IEC 62020) compatible with the protection transformers of the WGC-TB series. The RGU-10B is the most complete system for monitoring and controlling electrical insulation of type-B installations (IEC 60755).

• Electronic relay with relay output.
• Measures in AC, DC or mixed current, type B (IEC 60755)
• Measures the intensity of the current by connecting to an residual current transformer of the WGC-TB
• Programmable with backlit LCD display:
  • Trip current (red display when tripped)
  • Parameter programming
  • Instantaneous leakage current
  • Disconnection of external transformer
• Status signalling via 2 LEDs
• Features two independent programmable outputs (main and prealarm).
• Includes a remote-control input.
• Assembly on DIN 46277 rail (EN 50022), 3 modules.

Applications

Monitoring of the electrical insulation in:

• Single or three-phase AC installations, AC installations with DC components or purely DC installations. With frequencies of up to 1 kHz.

Such as, for example:

• Speed drives
• UPS (Uninterruptible Power Supply systems)
• Photovoltaic installations
• Motor control devices, etc.

AC power supply

External reset input for tripping

Digital relay outputs

User interface

Environmental characteristics

Mechanical characteristics

Differential protection

Standards