Description

GE / ALSTOM KVGC transformer protection system

GE KVGC transformer protection Relay : GE’s transformer protection devices provide innovative solutions for the protection, control and monitoring of transformer assets. Transformers have become an essential component for high voltage power transmission, ensuring long distance transmission of power is economically practical. GE’s transformer protection solutions enhance transformer reliability through special techniques and methods to increase the life of transformers.
The KVGC202 can be integrated into an overall protection and control system by utilising its integral serial communications, thereby providing information for day-to-day management of power systems.

GE KVGC transformer protection Relay Key benefits:
• Suitable for parallel transformer applications
• Integral line drop compensation for voltage regulation at a remote point
• Increased equipment lifetimes as a result of accurate voltage control and reduced circulating currents
• Compact multi-function numerical relay
• User friendly interface
• True RMS voltage measurement

The KVGC relay provides regulation of the supply voltage within finite limits by controlling transformer tap changing.
As part of the K Range of relays, the KVGC202 can be integrated into an overall protection and control system by utilising its integrated serial communications, thereby providing information for the day to day management of power systems.

The KVGC202 relay can be used to maintain a regulated voltage supply to electrical equipment designed to operate within finite limits of its designed rated voltage. Failure to maintain a regulated voltage supply within these defined limits may cause extensive damage. Regulation is achieved by the operation of voltage regulating transformers of
various types, the most common being the on-load tap changing transformer, which maintains a stable secondary voltage by selecting appropriate tappings on the primary winding.

The tap changer operation is automatically controlled by the KVGC202 voltage regulating relay which continuously monitors the system voltage and initiates commands to the tap changer mechanism to raise or lower the voltage accordingly.

Key Features

• True RMS voltage measurement giving high immunity to harmonic distortion
• Reverse current blocking
• Local or remote control of 3 stage programmable load shedding and voltage boosting
• Tap position indication (TPI)
• Tapchanger failure and maintenance functions
• Tap change runaway protection
• Integral line drop compensation for voltage regulation at a remote point.
• Suitable for parallel transformer applications to minimise circulating current (integral
• reverse reactance and pilot methods)
• Comprehensive supervision functions
• Dual rated 1 A or 5 A, 50 Hz or 60 Hz
• Integral measurements, monitoring and recorder features
• Programmable digital inputs and outputs
• Integrated serial communications

GE’s transformer protection devices provide innovative solutions for the protection, control and monitoring of transformer assets. Transformers have become an essential component for high voltage power transmission, ensuring long distance transmission of power is economically practical. GE’s transformer protection solutions enhance transformer reliability through special techniques and methods to increase the life of transformers.

Extend transformer life, optimize capital expenditure and improve reliability of service by implementing a preventative asset maintenance and management tool using GE’s Multilin T60, T35, 845, 745 and 345 as well as MiCOM P64x.

We offer GE’s century long tradition of power system innovation. From generators to transmission lines, to motors and beyond, we ensure dependable, safe power worldwide. GE offers a wide range of single function and auxiliary relays, along with a portfolio of accessories, to support high performing and reliable protection and control systems. Explore GE numerical Relays portfolio with us!