Siemens Reyrolle 7PG21 Solkor Rf – 3xI

The Siemens Reyrolle 7PG21 Solkor RF – 3xI is a high-performance industrial current relay. Additionally, designed for reliable 3-phase protection in power systems. Engineered for precision, it provides accurate current monitoring. Specifically, to ensure safe and efficient operation of industrial electrical networks.

Ideal for industrial applications, this Siemens relay guarantees consistent performance and durability. Moreover, it is a trusted choice for engineers and facility managers. Available through reliable Mumbai suppliers, the Siemens Reyrolle 7PG21 Solkor RF – 3xI ensures fast delivery, authentic products, and expert local support.

Additionally, Relays (and associated CTs) are installed at each end of the protected circuit and connected with dedicated metallic pilot wires.

This established protection system provides simple, robust protection of proven performance. Moreover, facilitates straightforward installation, commissioning, and maintenance.

Relays have 3 current inputs and are housed in E6 cases.

Additional relays and components can be added to the basic protection to provide:

• Increased insulation level
• Pilot wire supervision to monitor the integrity of the pilot circuit.

Key Features: 

• High transient stability
• High-speed operation
• Low phase and earth fault settings
• Little or no variation of settings with pilot length
• In zone bleed off of up to % of rated load
• Easy to install, commission, and maintain
• kV pilot isolation option
• Easily reconnected as either Solkor RF or Solkor R
• Pilot Supervision schemes available
• Remote end injection intertripping via pilot cores is available
• Test points at the relay fascia
• Option of 15 kV pilot isolation
• Option of pilot supervision

Functions:

• Protection functions
  • Current differential protection over a single pair of pilot wires
• Supervision functions
  • Optional pilot wire supervision
  • Optional overcurrent guard (check)
• Control functions
  • Optional unstabilizing / intertripping

Whether you are upgrading your power system protection or installing a new 3-phase current relay, this Siemens Reyrolle model combines technical excellence with practical usability, offering peace of mind and robust operational efficiency.