Over-frequency protection relays

Tripping current: 3, 5 A
Trigger voltage: 50 V - 500 V

• 3 phase RMS voltage protection relay • Monitors: Over / Under Voltage, Over / Under Frequency, Phase asymmetry, Phase failure, Phase sequence & Neutral loss • Accuracy: ± 1% of Voltage, ± 0.3Hz • Measuring range : 160 to 520V depending ...

The SIPROTEC 7SD610 und 7SD5 line differential protection have been designed particularly for the selective protection of overhead lines and cables with single-ended and multi-ended infeed in medium-voltage and high-voltage systems. Transformers ...

Tripping current: 0.3 A - 30 A

FPC 200 is a family of current or voltage digital protection relays with easy to use interface meant for variety of solutions in industry and power distribution. Its robust design enables it to be placed in demanding industrial environments ...

Trigger voltage: 87 V - 550 V

The Frequency protector set point adjustment range is centred around the nominal system frequency of 50, 60 or 400Hz. The adjustable differential setting can be used to reduce nuisance tripping if the measured signal is noisy or unstable. ...

Transformer Protection Relay Protect and monitor most three- and four-winding transformers and terminals with the versatile SEL-787 Transformer Protection Relay platform. Select SEL-787-3E/-3S models, and apply three-phase current and ...

PCS-985TI is a high performance numerical transformer protection device, which integrates main and backup protection into one device. It provides complete protection of a transformer in any voltage level, and is typically applied for ...

Tripping current: 5 A
Trigger voltage: 110 V

VIPAM3500 (Integrated Electronic Device) is a digital protection relay that enables a high-precision measurement and protection relay for switchgear power equipments. The switchgear panel became compact by connecting various protection ...

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 ...

Trigger voltage: 100 V - 480 V

KPFV51x - SINGLE PHASE - FREQUENCY AND VOLTAGE GUARD Under and Over Voltage and Frequency Protection Adjustable Voltage and Frequency Deviation Set points "Pathfinder" function Optional very fast analogue output (<50mS), ...

XMR-P is a part of XMORE platform, the complete range of IEDs for Medium Voltage application including feeder, motor, generator, transformer and capacitor bank; it is the multifunction and comprehensive Feeder, Transformer, Motor and ...

MP250 continuously monitors the mains parameters, in order to interrupt the parallel between the generators and the mains in case some parameters are of out of limits. The digital outputs of the relay can be used to issue an opening ...