Protection & Control : Products & Services : GE Digital Energy

From the protection and control of utility generators to ensuring the safe interconnection of renewable energy sources to the grid, to synchronization and load shedding solutions using advanced automation, Multilin products and services work to maximize asset reliability and operational life.

G30, G60

Applications

Medium and large generators

Pumped storage applications

Transformer in-zone applications

Steam, hydraulic, combustion

100% Stator & Field ground fault detection

489

Applications

Industrial power generation

Co-generation applications

Shipboard power generation

Primary or backup protection

G650, W650

Applications

Distributed generation

Wind turbine and alternative energy

Transfer trip applications

Interconnection protection

Utilizing advanced algorithms to detect abnormal conditions such as hottest-spot, aging insulation and transformer loss of life within the power transformer, Multilin protection relays allow operators to follow an as needed maintenance program reducing total life-cycle costs.

T60

Applications

Medium to large MV - HV transformers

Auto-transformer banks

Main & backup protection

Up to five current sources (windings)

T35

Applications

Medium to large LV – MV transformers

Main protection for distribution schemes

Transmission schemes backup protection

Transformer – bus protection for small distribution systems

745

Applications

Medium to large HV, MV & LV transformers

Main & backup protection for transmission & distribution

Automatic tap-changer monitoring

Auto-transformer banks

With real-time system monitoring tools utilizing synchrophasor measurement data, utilities are able to pursue demand response initiatives, implement remedial action schemes. Wide area protection, fault and disturbance analysis capabilities ensure utilities optimize and increase transmission reliability.

D60, D90Plus

Applications

Transmission & sub-transmission

Single and three-pole tripping

CCVT and magnetic VTs

Series compensated lines

L60, L90

Applications

Transmission & sub-transmission

Single and three-pole tripping

Digital communications (e.g. SONET)

Power line carrier communications

Phase comparison supports third party legacy devices

D30, L30

Applications

Transmission & sub-transmission

Non-radial distribution feeders

Industrial distribution feeders

MV feeders with distributed generation

Multilin protection and control devices offer true integration of features including protection, monitoring, metering, communications and control into one easy-to-use device. Our products ensure the required protection and control selectivity, and deliver the reliability needed for even the most complex bus configurations.

B90

Applications

Bus schemes with up to 24 breakers

Distribution, sub-transmission and transmission substations

MV, HV and EHV systems

Breaker failure and overcurrent protection

B30

Applications

Bus schemes - up to 6 circuits & 2 zones

Distribution, sub-transmission and transmission substations

MV and HV systems

Breaker failure & overcurrent protection

MIB

Applications

Switchgear and substations

LV, MV, HV systems

Restricted ground fault to machines and transformers

Improve power system safety and ensure efficient recovery of distribution networks through fault isolation, sectionalization and power system restoration schemes. From the detection of fallen power lines and damaged underground cables using Hi-Z detection, to incipient cable fault detection and arc flash mitigation, Multilin relays provide the high-speed sensing and isolation required to minimize system outages and ensure safety.

F35, F60

Applications

Multiple/single high-end feeders and Incomers

Transfer schemes

Recloser protection & control

750/760, F650

Applications

High-end feeders and incomers

Transfer schemes

Recloser protection & control

350, 735/737

Applications

MV/LV feeders

Primary or backup protection

MCCs & PDC LV systems

From protecting down hole pump motors to low voltage conveyor systems, Multilin relays provide the flexibility to meet industrial protection requirements. Coupled with advanced diagnostics, powerful automation and multiple communications options including support for IEC 61850, GE’s Multilin relays lead the industry in advanced motor protection.

469, M60

Applications

Gas and liquid separation

Lift pumps

Wellhead monitoring

Centrifugal pumps

339, 369

Applications

Down-hole pumps

High-inertia and two speed loads

Compressors

Booster stations

MM200, MM300

Applications

Refinery automation and control

Belts and conveyor systems

LV pump applications

LV fan applications

From basic metering to high-end transient capture and flicker detection, we offer a full range of commercial, industrial and utility grade meters. Multilin meters offer the energy metering and power quality measurement required to optimize and lower power system costs. With comprehensive communications, including support for industry standard protocols, Multilin meters can be easily integrated into new or existing DCS or SCADA systems. When coupled with GE’s EnerVista software, operators gain real-time access to power system status, alarms, and fault diagnostic and analysis tools.