Digital protection relays

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Digital protection relays | Choosing the Right Protection Relay
Protection relays can be divided into two main categories: digital relays and electromechanical relays. Digital protection relays Digital protection relays, also known simply as "digital relays", are made up of an electronic system with microprocessors. These microprocessors make it possible to analyze various grid parameters, such as voltage, intensity, or current to detect faults in an industrial control system. Thanks to microprocessors, these relays can...
over-current protection relay
over-current protection relay
IPR-A

... circuit Features - CT primary ratio selectable in 5 A steps (10 A to 6000 A) - Line and ground RMS currents measurement - 1 trip relay and 2 programmable auxiliary relay - Control power drop or ...

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Orion Italia
over-current protection relay
over-current protection relay
ETMFC50

... - Digital relay for Epoxy Fault Interrupter(EFI) -51, 50, Sectionalizer Function, Overcurrent Lock Function and Contact Wear Monitor -Programmable SCADA I/O port -Inrush current suppression ...

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ENTEC ELECTRIC & ELECTRONIC CO.,LTD
voltage protection relay
voltage protection relay
NPR series

Tripping current: 0 A - 5 A

... The protection relay for the capacitor bank (NPR series) monitors the three-phase capacitor banks in medium-voltage reactive power compensation systems. It can recognize various hazardous situations in capacitor units: ...

voltage protection relay
voltage protection relay
PCS-915ID

... Busbar current differential protection (87B) Phase current differential protection Percentage restraint DPFC differential protection DPFC differential protection Voltage ...

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NR Electric
over-current protection relay
over-current protection relay

... The DKR-24 Series, manufactured by Entes, is an overcurrent protection relay designed to avoid damage from overloading the motor. This is equipped with electronic coil controller, same ...

earth-leakage protection relay
earth-leakage protection relay
VIPAM3500

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 ...

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VitzroEM Co., Ltd.
voltage protection relay
voltage protection relay
L-PRO 4000

... is a digital, microprocessor-based line distance protection system that provides comprehensive distance based line protection for medium to extra-high-voltage transmission lines. Apply the L-PRO for ...

voltage protection relay
voltage protection relay
ISOPAK1xx series

Tripping current: 4 mA - 20 mA

... Supervision C/O relay outputs "Highest up" 4-20mA signal & RS-485 Modbus RTU outputs Description The digitally controlled ISOPAK1xx adds to Megacon's wide range of ISOGUARD products for insulation and earth fault monitoring ...

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Meagacon AS
current protection relay
current protection relay
MDR-2 series

Tripping current: 5 A
Trigger voltage: 250 V

... differential protection and short-circuit protection relay for generator protection against internal short circuits (leaking currents). The MDR-2 is a state-of-the-art combined differential ...

phase loss protection relay
phase loss protection relay
TPM5

Tripping current: 5 A

... Consumption: 2W - Protections: overload, underload, phase loss - Display: LED - Mounting: 11-pin socket - Output: NA + NC - Current range: 1…18A (0…100% with /5A current transformer) - Reset: Manual ...

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Toscano Linea Electronica
overload relay
overload relay
TSB-ED series

Tripping current: 0.2 A - 34 A

... Digital economy type You can easily set the setting value while looking at the digital display. One model now supports 24 to 240V AC/DC. Features - The motor current value and various setting values during operation ...

over-current protection relay
over-current protection relay
VACON® NXP DCGuard

Tripping current: 3 A - 4,140 A
Trigger voltage: 465 V - 1,100 V

... However, ensuring selectivity and limited short circuit energy requires more sophisticated protection devices. VACON® NXP DCGuard™ is a semiconduc­tor protection device that maintains the stability of the DC grid by ...

earth-leakage protection relay
earth-leakage protection relay
MRM4

three-phase motor pump protection relay
three-phase motor pump protection relay
SubMonitor

... current transformers. A digital display provides current and voltage readings for all three legs and allows the user to set up the SubMonitor quickly and easily. The SubMonitor is the latest innovation in 3-phase pump protection ...

under-frequency protection relay
under-frequency protection relay
MP 250

... breaker). A complete set of mains protections is available. The relay features multistage protections for under and over voltages, under and over frequency as well as rate of change of frequency (ROCOF). All ...

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