High Impedance Differential Protection Relays
MiCOM P72x high impedance differential protection series provides high impedance differential protection for generators, reactors, motor and busbar applications. Models available: MiCOM P721, MiCOM P723
MiCOM P72x also offers the same application benefits as traditional high impedance electromechanical protection schemes, it combines the added benefits of numerical technology to provide advanced communications, event records, fault records, disturbance records and ancillary protection features.
Combined with the MiCOM P79x, a standalone metrosil and resistor unit, it provides simplified scheme engineering for single or three-phase differential applications.
Standard Manufacturers Warranty: 2 years
BenefitsNumerical High Impedance Relay
- Simple scheme engineering
- Reliable algorithm - stable for through fault and fast trip for internal fault
- Supervision functions included in the same protection box
- Set by current or voltage
- Numerical relay features
ApplicationsP72x offers reliable protection for busbars, transformers windings, generators, reactors and motors. P721 is suitable for restricted earth fault (REF) or balanced earth fault (BER) applications. P723 is suitable for busbar and machine phase differential protection.
EcoStruxure™ for Your BusinessEcoStruxure lets you thrive in today's digital world. Make better business decisions with scalable and converged IT/OT solutions. Learn more
Reach UsHave a question, complaint or is there some feedback you’d like to send us to make your experience with Schneider Electric better? Contact an Expert
Frequently Asked QuestionsEasily find and share the answer you are looking for from our online FAQ service Browse FAQ
Need information?Browse our resource section and find the most useful tools and documents for all our products Browse
Energy and sustainability servicesFirst, envision an energy-efficient, cost-effective and sustainable enterprise. Next, discover our energy and sustainability services, including big data management, to turn this vision into your business reality. Browse services
+ Lifecycle ServicesFrom energy and sustainability consulting to optimizing the lifecycle of your assets, we have services to meet your business needs. Discover services