Transformer protection relays

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Transformer protection relays | Choosing the Right Protection Relay
Protection relays have different functions. They are often made up of several modules, each of which performs a specific function. In this guide, we will distinguish three types of functions: protection against abnormal variations in the main supply, protection against leakage currents, and protection against overloads. Protection against abnormal grid variations Abnormal voltage, current, and frequency variations can lead to problematic phenomena. These...
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IEC protection relay
IEC protection relay
RED615

... systems with integration of protection, control, monitoring and supervision in one relay. RED615 is a member of ABB’s Relion® product family and part of its 615 protection and control series of relays. Scope •Feeder ...

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ABB Oy Distribution Automation
generator protection relay
generator protection relay
Multilin 889

... The Multilin 889 relay, a member of the Multilin 8 Series protective relay platform, has been designed for the protection, control, monitoring and management generators and in-zone transformers ...

distance protection relay
distance protection relay
SIPROTEC 7SA82

... independent measuring loops (6-system distance protection) •Several distance- protection functions can be selected: Classic, reactance method (RMD), impedance protection for transformers •Directional ...

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SIEMENS Energy automation and smart grid
earth-leakage protection relay
earth-leakage protection relay
X52DSX

... 0,2÷5s • One or two operating trip relays. • Output relays test. • Manual (local or remote) or programmable automatic reset. • Continuous control of wiring connection between the relay and the CT: ...

earth-leakage protection relay
earth-leakage protection relay
RGU-100A

Tripping current: 0.03 A - 30 A

... The RGU-100A is a type-A ultraimmunized earth leakage protection and monitoring relay that is compatible with the earth leakage transformers in the WGC range. The device measures, calculates and displays ...

current protection relay
current protection relay
RGU-10A

... The RGU-10A is a type-A ultraimmunized earth leakage protection and monitoring relay that is compatible with the earth leakage transformers in the WGC range. The device measures, calculates and displays ...

over-voltage protection relay
over-voltage protection relay
SIU-C

Trigger voltage: 24 V - 230 V

... SIU-C represents the best and most precise protection solution for transformers and electrical machines in high, medium, and low-voltage distribution systems. The SIU-C is a voltage and frequency protection ...

arc flash protection relay
arc flash protection relay
AFR-3S

... AFR-3S Arc flash relays are mainly used to detect arc faults in electrical systems and protect equipment and personnel in electrical systems from arc faults. The arc flash protection relay can detect ...

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Chongqing Blue Jay Technology Co. Ltd
earth-leakage protection relay
earth-leakage protection relay
PR 260

... The PR 260 electric motor protection relay, known as the motor management relay, is designed for motor protection and control, which integrates protection, control, and ...

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Chongqing Blue Jay Technology Co. Ltd
phase loss protection relay
phase loss protection relay
MPR-6M

Trigger voltage: 85 V - 265 V

... The MPR-6M Multifunction Protection Relay is suitable for circuit protection and monitoring of electrical lines and distribution cabinets. It can monitor various parameters in real time, such as current, ...

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Chongqing Blue Jay Technology Co. Ltd
earth-leakage protection relay
earth-leakage protection relay
DER4B/2D

Tripping current: 0.03 A - 30 A
Trigger voltage: 48 V - 400 V

... Din modules Dossena presents the DER4B range, the new generation of type B differential toroid relays. DER4B is recommended for electrical protection in the tertiary sector, where devices that generate alternating, ...

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DOSSENA
earth-leakage protection relay
earth-leakage protection relay
DER4B/2I

Tripping current: 0.03 A - 30 A
Trigger voltage: 48 V - 400 V

... Recessed 96x96mm Dossena presents the DER3B range, the new generation of type B differential toroid relays. DER3B is recommended for electrical protection in the tertiary sector, where devices that generate alternating, ...

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DOSSENA
earth-leakage protection relay
earth-leakage protection relay
DER4/0D

Tripping current: 0.03 A - 30 A
Trigger voltage: 48 V - 400 V

... The residual current relays of the DER4 Dossena range can be used on LV networks in alternating current of the TT and TN type. They make it possible to achieve adequate selectivity and residual current protection thanks ...

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DOSSENA
earth-leakage protection relay
earth-leakage protection relay
FPC 680i

... FPC 680i is a multifunctional intelligent electronic device for protection and control of feeders, motors and transformers. It offers comprehensive and cost effective solution for protection, control, ...

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Iskra d.d.
transformer protection relay
transformer protection relay
PAS2950D

... PAS2950D series digital distribution transformer protection, measurement and control device is applicable to the protection, meausrement and control of power transmission and distribution transformers ...

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Hangzhou Huning Elevator Parts Co., Ltd.
over-current protection relay
over-current protection relay
XMR-A

... fault recording • 64 sample for cycle measurement for accuracy of protection element COMMUNICATION SECURITY Communication Security through redundancy protocol and Cyber Security ...

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THYTRONIC
over-voltage protection relay
over-voltage protection relay
CCTP-03

Trigger voltage: 0 V - 150 V

... threat to personal safety. This CT secondary overvoltage protector offers protection from such accidental damage caused by secondary transient voltage. • Protection for three current transformers • ...

level protection relay
level protection relay
RIS2

... Pressure and Temperature Detection Relay), DMCR (Detection, Measurement and Control Relay) or RIS2 (Integrated Safety Relay) type. The RIS2 safety detector is the ...

thermal protection relay
thermal protection relay
T119

Trigger voltage: 24 V - 240 V

... and options The T119 thermal protection relay ensures the safety of dry or resin-coated transformers: Standard distribution transformer Dual voltage transformer Traction ...

voltage protection relay
voltage protection relay
CMC 500

... CMC 500 - Modular, multi-phase protection relay test set and commissioning tool ...

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