Over-excitation protection relays

6 companies | 7 products
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over-excitation protection relay / under-excitation / differential / for generators
over-excitation protection relay
AQ-G357

AQ-G357 is a generator protection IED for any size of synchronized machines. It integrates a full range of generator protection functions along with variety of additional functions for control, measurement, monitoring and communications. Highlights • ...

voltage protection relay / frequency / over-excitation / digital
voltage protection relay
7RW80

The SIPROTEC 7RW80 is a numerical, multi-function relay for connection to voltage transformers. It can be used in distribution systems, on transformers and for electrical machines. Features If the SIPROTEC Compact 7RW80 detects any ...

over-excitation protection relay / phase sequence / programmable / panel-mount
over-excitation protection relay
G60

Designed on the industry-leading UR platform, the G60 provides paramount protection for medium and large generators, with large steam and combustion turbines, integrated cycle generators and multi-circuit hydro units. The G60 can also ...

over-current protection relay / voltage / over-frequency / under-frequency
over-current protection relay
SEL-387E

Current Differential and Voltage Relay The SEL-387E Current Differential and Voltage Relay provides protection to two- or three-winding power transformers. Voltage inputs for power metering, overexcitation protection, and over-/underfrequency ...

See the other products
Schweitzer Engineering Laboratories
over-voltage protection relay / under-voltage / overload / over-current
over-voltage protection relay
T-PRO 4000

The IEC 61850 station bus embedded T-PRO relay provides complete 3-phase multi-winding transformer fault and overload protection, DFR-quality fault oscillography, sequence of event logging, trend recording, in a fully integrated protective ...

over-excitation protection relay / over-voltage / DIN rail / single-phase
over-excitation protection relay
RMQ 121D

The RMQ-121D is an overexcitation relay that is used to protect the generator against overexcitation. This function hinders the generator from producing extremely high currents in situations where massive inductive loads occur. The RMQ-121D ...