Glossary of Electrical Terms in English — R
R
Radial network - radial network
Radiated electromagnetic field test — noise immunity test
Radio link protection — radio channel protection
Random sync — enable without sync control
Adjustment range — adjustment range
Scope of regulation — regulatory area
Scale Range — Scale range
Rate of change of … relay — derivative relay …
Rated capacity — rated capacity
Rated contact current — rated current of the contact
Rated thermal current — rated thermal current
Pulse rate of rise — the steepness of the pulse front
Reactance — reactivity
Reactance Relay - Reactance Relay
Reactive energy — reactive energy
Real time — real time
Receiver — receiver
Receive channel — channel to receive
Receive level — receive level
Recovery time — recovery time
Restoring voltage — Restoring voltage
Fixing — straightening
Rectifier - rectifier
Reduced measurement error — relative measurement error
Reduced voltage — reduced voltage
Reed relay — reed relay
Reference instrument - reference instrument
Reference value — relative value
Reference voltage — reference voltage
Reflected wave — reflected wave
Register - Register
Adjustment point — adjustment point
Regulation - regulation
Adjustment level — the adjustment level
Regulator operation — regulation quality
Relative error — relative error
A relatively selective protection system not a single protection system — a relative selectivity protection system
Relay - relay
Relay box — relay box
Relay cabinet — relay cabinet
Relay characteristic angle — angle of maximum sensitivity
Relay coil - relay coil
Relay box — relay cabinet
Relay element - relay element
Relay protection - relay protection
Relay Kit — Relay Kit
Relay Coil — Relay Coil
Release — release
Release lag — release delay
Reliability — Reliability
Reliability index — an indicator of reliability
Remote backup protection — protection that performs long-distance backups
Remote control — telecontrol
Remote indication — remote signaling
Remote Setup — remote setup of settings
Remote monitoring — telecontrol
Substation with remote control
Repair — repair
Spare bus — redundant bus
Reset - return
Reset button — Back button
Time reset — time to return
Reset value — return parameter
Residual Capacitive Voltage — Residual capacitive voltage
Residual current — residual current
Remanent magnetization — Remanent magnetization
Residual Voltage — Zero-sequence voltage
Resistance — active resistance
Resistance - resistance
Resonance — resonance
Resonantly Grounded (Neutral) Arc Suppressor Coil-Ground (Neutral System) Arc Suppressor Coil
Response level — response threshold
Response time — response time
Recovery — recovery
Limiting coil — brake coil
Limited transformer earth fault protection - protection against differential current transformer connected to the neutral and phase currents of the primary winding
Delay time — return time
Rate of Return — rate of return
Return value — The return value
Return to home position - return (relay)
Reversible hydroelectric set — a reversible hydroelectric unit
Hard wiring - hard mounting
Ring link — ring chain
Ring Feeder (loop) — A ring feeder with a single feed
Electric network — ring network
Ring network — ring network
Ring operation — ring mode of operation
Ring substation — a substation with a ring section bus system
Frequency boost — increase the frequency
Risk of failure — risk of failure
Root Mean Squared Deviation - Root Mean Squared Deviation
Root mean square value-root mean square value
Rotor Ground Protection — Protects the rotor from ground faults
Rotor-to-Frame Fault—Rotor-to-frame winding short circuit
Rotor winding — rotor winding
Coarse Reading Scale — Coarse reading scale
24/7 service - 24/7 service
Expiration — departure