GE T60 Transformer Management Relay

INTRODUCTION

Introduction:

Multifunctional digital relay for transformer

protection:

• Configurable multi-protection transformer package

• Up to 4 sets of CTs and/or VTs (T60) – Optional 5/6 windings

• Up to 6 sets of CTs and/or VTs (T35)

• Programmable FlexLogic

• GOOSE and Direct I/O messaging

• Easy access through HMI(Human Machine Interface)

• Easy for monitoring and control PC program

• Varieties of communications

FEATURES

• Protections:

– Transformer Percent Differential  (87T)

– Instantaneous Differential (87/50)

– Restricted Ground Fault (87G)

– Overexcitation

– Volts/Hz (24)

– Phase/Neutral/Ground TOCs (51P, 51N, 51G)

– Phase/Neutral/Ground IOCs (50P, 50N, 50G)

– Phase and Neutral directional OC (67P, 67N)

– Phase under- and over-voltage (27P, 59P)

– Auxiliary under- and over-voltage (27X, 59X)

– Neutral over-voltage (59N)

– FlexElements

- universal comparator

• Controls:

– Six Setting Groups

– Under- and Over

- frequency

– Digital Elements

– Digital Counters

– Selector Switch

– Synchcheck (optional)

• Inputs/Outputs

– Contact Inputs and Outputs

– Virtual Inputs and Outputs

– Direct Inputs and Outputs

– Remote Inputs and Outputs(GOOSE)

• Metering and Monitoring:

– Currents(phasors and true RMS)

– phase, ground, neutral, symmetrical components and demand

– Voltages(phasors and true RMS)

– phase, ground, neutral and symmetrical components

– Power

- active, reactive, apparent, power factor

– Energy and energy demand

– Per-phase differential and restraint currents

– Ground differential and restraint currents

– Per-phase 2-nd and 5-th harmonics on differential currents

– 2-nd to 25-th harmonics currents and THD

– Oscillography

– Event Recorder

– Data Logger

– One PMU Element