Control & Relay
Panels

Overview

GE-TECH Control & Relay Panels house numerical/microprocessor-based protection relays, control switches, annunciators, and metering instruments for substations, power plants, and industrial HT/LT systems. These panels form the brain of the protection and control system, ensuring safe operation of power equipment.

Our C&R panels are designed in accordance with utility and client specifications, with proper relay coordination studies to ensure selective and reliable protection.

Key Features

• Numerical protection relays (Siemens, ABB, Schneider, GE, SEL)
• Generator protection panels (87G, 64G, 40, 46, 49, 51V)
• Transformer protection panels (87T, 51, 50, REF, OT/WT)
• Feeder protection panels (O/C, E/F, Distance protection)
• Bus bar protection panels (Low impedance / High impedance)
• Auto-recloser and capacitor bank switching panels
• Bay control units (BCU) for digital substations
• Annunciator and alarm systems (window type / LED type)
• Synchronizing panels with check-sync relay
• Event recording and disturbance fault recorder interface

Applications

• 132kV / 220kV / 400kV substations
• Power generation plants (thermal, hydro, solar, wind)
• Industrial HT switchgear protection
• Transformer protection schemes
• Generator protection and excitation control
• Busbar differential protection

Technical Specifications

Panel Type	Floor-mounted / Wall-mounted / Desk type
Relay Brands	Siemens (7SJ/7UT/7SA), ABB (REF/RET), Schneider (Micom)
Protection Functions	O/C, E/F, Differential, Distance, REF
Communication	IEC 61850, DNP3, Modbus, IEC 60870-5-103
Auxiliary Supply	110V DC / 220V DC
Annunciator	Window/LED type with hooter and accept/reset
Standards	IEC 61439, IEC 60255, IS 3231
Enclosure	CRCA IP 42/52, seismic Zone IV/V
Wiring	FR/FRLS copper wiring with ferrule numbering
Documentation	SLD, Schematic, Wiring, GA, BOM

Why Choose GE-TECH C&R Panels?

• Deep expertise in power system protection engineering
• Relay coordination and protection study services
• Panel design conforming to client/utility specifications
• Complete FAT with relay injection testing
• Site commissioning with primary and secondary injection
• Protection system audit and upgrade services