Electrical Full Forms, explained for real systems.
Search 147 essential abbreviations used in circuit protection, switching, motor control, automation, power distribution, solar, wiring, measurement, and standards.
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Ampere
The SI unit of electric current.
- ການນໍາໃຊ້ປົກກະຕິ
- Current ratings, measurements, calculations, and equipment specifications.
Air-Break Switch
A switch that opens contacts in air to provide visible circuit interruption.
- ການນໍາໃຊ້ປົກກະຕິ
- Manual switching and isolation in suitable distribution applications.
ໄຟຟ້າກະແສສະຫຼັບ
Electric current that periodically reverses direction.
- ການນໍາໃຊ້ປົກກະຕິ
- Utility supplies, motors, transformers, and building distribution.
ອາກາງຈອນໄຟ
A low-voltage circuit breaker that uses air as the arc-extinguishing medium.
- ການນໍາໃຊ້ປົກກະຕິ
- Main incomers, large distribution boards, and industrial switchboards.
Alternating-Current Distribution Board
A board that distributes and protects alternating-current circuits.
- ການນໍາໃຊ້ປົກກະຕິ
- Building, industrial, and renewable-energy AC distribution.
Arc-Fault Circuit Interrupter
A protective device intended to detect hazardous arcing patterns and interrupt the circuit.
- ການນໍາໃຊ້ປົກກະຕິ
- Branch circuits where arc-fault protection is required by the applicable code.
ອຸປະກອນກວດຈັບຄວາມຜິດປົກກະຕິຂອງ Arc
A device that detects characteristic electrical arcing and disconnects the affected circuit.
- ການນໍາໃຊ້ປົກກະຕິ
- Final circuits where reducing the risk associated with electrical arcs is required.
Analog Input
A controller input that reads a continuously variable electrical signal.
- ການນໍາໃຊ້ປົກກະຕິ
- Temperature, pressure, level, flow, and position measurement.
Ampere Interrupting Capacity
The maximum fault current a protective device is rated to interrupt under stated conditions.
- ການນໍາໃຊ້ປົກກະຕິ
- Comparing protective-device capability with the available fault current.
สถาบันมาตรฐานแห่งชาติอเมริกัน
A US organization that coordinates voluntary consensus standards and conformity-assessment activities.
- ການນໍາໃຊ້ປົກກະຕິ
- North American engineering specifications and standards references.
Analog Output
A controller output that sends a continuously variable electrical signal.
- ການນໍາໃຊ້ປົກກະຕິ
- Speed references, valve commands, and process-control setpoints.
ເຄື່ອງຄວບຄຸມປັດໄຈພະລັງງານອັດຕະໂນມັດ
A controller that switches correction stages to maintain a target power factor.
- ການນໍາໃຊ້ປົກກະຕິ
- Capacitor banks in commercial and industrial installations.
ສະຫຼັບການໂອນອັດຕະໂນມັດ
A switching assembly that automatically transfers a load between available power sources.
- ການນໍາໃຊ້ປົກກະຕິ
- Utility-generator, dual-supply, and backup-power systems.
American Wire Gauge
A standardized conductor-size system widely used in North America.
- ການນໍາໃຊ້ປົກກະຕິ
- Cable selection, terminal compatibility, and conductor documentation.
Break Before Make
A contact sequence in which the existing connection opens before the new connection closes.
- ການນໍາໃຊ້ປົກກະຕິ
- Changeover switches where sources or circuits must not overlap.
ລະບົບເກັບຮັກສາພະລັງງານແບັດເຕີຣີ
An integrated system that stores electrical energy in batteries and returns it when required.
- ການນໍາໃຊ້ປົກກະຕິ
- Solar self-consumption, peak management, backup power, and grid services.
Battery Electric Vehicle
A vehicle propelled only by electric motors using energy stored in a rechargeable battery.
- ການນໍາໃຊ້ປົກກະຕິ
- AC and DC charging infrastructure and energy-management planning.
Brushless Direct-Current Motor
A permanent-magnet motor electronically commutated without mechanical brushes.
- ການນໍາໃຊ້ປົກກະຕິ
- Fans, pumps, automation, and variable-speed equipment.
Battery Management System
An electronic system that monitors and manages battery operation and protection functions.
- ການນໍາໃຊ້ປົກກະຕິ
- Battery packs, stationary storage, and electric vehicles.
ຕົວຕັດວົງຈອນ
A switching device capable of making, carrying, and interrupting current under specified circuit conditions.
- ການນໍາໃຊ້ປົກກະຕິ
- Circuit protection and controlled isolation in distribution systems.
ສາຍຕ່
A fitting that secures and seals a cable where it enters an enclosure.
- ການນໍາໃຊ້ປົກກະຕິ
- Panels, junction boxes, machinery, and outdoor equipment.
ວົງຈອນ
A common abbreviation for an electrical circuit in drawings and schedules.
- ການນໍາໃຊ້ປົກກະຕິ
- Panel schedules, schematics, single-line diagrams, and field notes.
Current-Limiting Fuse
A fuse designed to limit the magnitude and duration of fault current.
- ການນໍາໃຊ້ປົກກະຕິ
- Protection where limiting let-through energy helps coordinate downstream equipment.
Circuit Protective Conductor
A protective conductor connecting exposed conductive parts to the earthing arrangement.
- ການນໍາໃຊ້ປົກກະຕິ
- Fault-current paths and protective bonding in electrical installations.
ເນື້ອທີ່ໜ້າຕັດຂວາງ
The area of a conductor cross section, commonly expressed in square millimetres.
- ການນໍາໃຊ້ປົກກະຕິ
- Conductor sizing, voltage-drop assessment, and terminal selection.
ໝໍ້ແປງກະແສໄຟຟ້າ
An instrument transformer that provides a scaled current for measurement or protection.
- ການນໍາໃຊ້ປົກກະຕິ
- Meters, relays, monitoring systems, and protective schemes.
ກະດານແຈກຢາຍ
An assembly that divides an incoming electrical supply into protected outgoing circuits.
- ການນໍາໃຊ້ປົກກະຕິ
- Residential, commercial, and industrial final distribution.
ໄຟຟ້າກະແສກົງ
Electric current that flows with a consistent polarity.
- ການນໍາໃຊ້ປົກກະຕິ
- Batteries, solar arrays, electronics, control circuits, and EV systems.
Direct-Current Miniature Circuit Breaker
A miniature circuit breaker designed and rated for direct-current circuit interruption.
- ການນໍາໃຊ້ປົກກະຕິ
- Photovoltaic, battery, telecom, and other DC branch circuits.
Direct-Current Surge Protective Device
A surge protective device designed for direct-current system voltage and fault behavior.
- ການນໍາໃຊ້ປົກກະຕິ
- PV strings, combiner boxes, battery systems, and DC distribution.
Direct-Current Distribution Board
A board that distributes and protects direct-current circuits.
- ການນໍາໃຊ້ປົກກະຕິ
- Solar, battery, telecom, and industrial DC systems.
Distributed Control System
A process-control architecture distributing control functions across connected controllers.
- ການນໍາໃຊ້ປົກກະຕິ
- Continuous and complex industrial processes.
Digital Input
A controller input that reads a discrete on-off state.
- ການນໍາໃຊ້ປົກກະຕິ
- Limit switches, push buttons, alarms, and equipment status.
Deutsches Institut für Normung
The German Institute for Standardization; DIN is also commonly associated with standardized rail mounting.
- ການນໍາໃຊ້ປົກກະຕິ
- DIN-rail components, dimensions, and German standards references.
ມັລຕິມິເຕີດິຈິຕອລ
An electronic instrument used to measure quantities such as voltage, current, and resistance.
- ການນໍາໃຊ້ປົກກະຕິ
- Installation testing, troubleshooting, commissioning, and maintenance.
Digital Output
A controller output that commands a discrete on-off state.
- ການນໍາໃຊ້ປົກກະຕິ
- Relays, contactors, indicators, solenoids, and alarms.
Direct-On-Line Starter
A motor-starting method that applies the supply voltage directly to the motor terminals.
- ການນໍາໃຊ້ປົກກະຕິ
- Motors where the starting current and mechanical impact are acceptable.
Double Pole, Double Throw
A switch arrangement controlling two poles between two output positions.
- ການນໍາໃຊ້ປົກກະຕິ
- Polarity reversal, changeover, and paired-circuit selection.
Double Pole, Single Throw
A switch arrangement that opens or closes two poles together.
- ການນໍາໃຊ້ປົກກະຕິ
- Simultaneous isolation of two conductors.
Earth Leakage Circuit Breaker
A legacy term for a device used to disconnect a circuit when earth-leakage conditions are detected.
- ການນໍາໃຊ້ປົກກະຕິ
- Older installations and historical discussions of leakage protection.
Electromagnetic Compatibility
The ability of equipment to operate acceptably without causing or suffering unacceptable electromagnetic disturbance.
- ການນໍາໃຊ້ປົກກະຕິ
- Panel design, cable routing, shielding, filtering, and compliance work.
Electromagnetic Interference
Unwanted electromagnetic energy that degrades the operation of equipment or signals.
- ການນໍາໃຊ້ປົກກະຕິ
- Industrial controls, drives, communication wiring, and sensitive electronics.
Electromechanical Relay
A relay that uses an energized coil to move mechanical contacts.
- ການນໍາໃຊ້ປົກກະຕິ
- Isolation, interlocking, signaling, and general control logic.
Electrical Metallic Tubing
A thin-wall metallic raceway used to route and protect electrical conductors.
- ການນໍາໃຊ້ປົກກະຕິ
- Commercial and industrial wiring installations.
Electronic Overcurrent Relay
An electronic relay that monitors motor current and trips or signals under configured abnormal conditions.
- ການນໍາໃຊ້ປົກກະຕິ
- Motor overload, phase-loss, and current-monitoring protection.
Energy Storage System
A system that stores energy for later electrical use.
- ການນໍາໃຊ້ປົກກະຕິ
- Renewable integration, backup, load shifting, and grid support.
Electric Vehicle
A vehicle propelled partly or entirely by electrical energy.
- ການນໍາໃຊ້ປົກກະຕິ
- Charging equipment, electrical infrastructure, and energy management.
Electric Vehicle Supply Equipment
Equipment that safely supplies electrical energy to an electric vehicle for charging.
- ການນໍາໃຊ້ປົກກະຕິ
- Residential, commercial, fleet, and public charging installations.
Fuel Cell Electric Vehicle
An electric vehicle that generates electrical energy onboard using a fuel cell.
- ການນໍາໃຊ້ປົກກະຕິ
- Hydrogen mobility and related charging or fueling infrastructure context.
Full-Load Amperes
The current drawn by equipment when operating at its stated full-load condition.
- ການນໍາໃຊ້ປົກກະຕິ
- Motor, conductor, starter, and overload-device selection.
Flexible Metal Conduit
A flexible metallic raceway used to route conductors where movement or difficult geometry is present.
- ການນໍາໃຊ້ປົກກະຕິ
- Machinery connections, equipment tails, and vibration-prone locations.
Flame Retardant Low Smoke
A cable-material designation indicating flame-retardant and reduced-smoke characteristics.
- ການນໍາໃຊ້ປົກກະຕິ
- Buildings and enclosed areas subject to specified fire-performance requirements.
Ground-Fault Circuit Interrupter
A device that disconnects a circuit when current imbalance indicates leakage to ground.
- ການນໍາໃຊ້ປົກກະຕິ
- North American shock-protection applications, particularly around wet locations.
Gas-Insulated Switchgear
Switchgear using insulating gas within an enclosed assembly.
- ການນໍາໃຊ້ປົກກະຕິ
- Compact medium- and high-voltage substations; terminology is included for system context.
Highway Addressable Remote Transducer
A communication protocol that superimposes digital information on a conventional analog signal.
- ການນໍາໃຊ້ປົກກະຕິ
- Smart process instruments and asset configuration.
Human-Machine Interface
A user interface for monitoring and controlling machines or processes.
- ການນໍາໃຊ້ປົກກະຕິ
- Control panels, production lines, utilities, and building systems.
Hand-Off-Automatic
A three-position selector arrangement for manual, disabled, or automatic control.
- ການນໍາໃຊ້ປົກກະຕິ
- Pump, fan, and motor-control panels.
High Rupturing Capacity
A fuse classification associated with safely interrupting high prospective fault currents.
- ການນໍາໃຊ້ປົກກະຕິ
- Industrial feeders, distribution equipment, and coordinated fuse protection.
Hertz
The SI unit of frequency, equal to one cycle per second.
- ການນໍາໃຊ້ປົກກະຕິ
- AC supply frequency, motor speed relationships, and signal measurement.
Input/Output
The signals and interfaces through which a controller receives information and issues commands.
- ການນໍາໃຊ້ປົກກະຕິ
- PLCs, remote I/O stations, drives, and machine controllers.
ຄະນະກໍາມາທິການໄຟຟ້າສາກົນ
The international standards organization for electrical, electronic, and related technologies.
- ການນໍາໃຊ້ປົກກະຕິ
- Electrotechnical terminology, product standards, testing, and system design.
สถาบันวิศวกรไฟฟ้าและอิเล็กทรอนิกส์
A global professional organization that develops standards and publishes technical research.
- ການນໍາໃຊ້ປົກກະຕິ
- Power systems, electronics, communications, computing, and engineering practice.
ການປົກປ້ອງຂາເຂົ້າ
A classification describing enclosure protection against access, solid objects, and water under the applicable standard.
- ການນໍາໃຊ້ປົກກະຕິ
- Selecting enclosures, glands, switches, and equipment for the installation environment.
International Organization for Standardization
An independent international organization that develops consensus-based standards across industries.
- ການນໍາໃຊ້ປົກກະຕິ
- Quality systems, management standards, terminology, and cross-industry specifications.
ຈຸດທີ່ປ່ອງ
An enclosure that contains and protects electrical connections.
- ການນໍາໃຊ້ປົກກະຕິ
- Branching, terminating, and protecting wiring connections.
Kiloampere
A unit of electric current equal to one thousand amperes.
- ການນໍາໃຊ້ປົກກະຕິ
- Fault-current levels and interrupting-capacity ratings.
Kirchhoff’s Current Law
The algebraic sum of currents at an electrical node is zero.
- ການນໍາໃຊ້ປົກກະຕິ
- Circuit analysis, protection studies, and electrical calculations.
Kilovolt-Ampere
A unit of apparent power equal to one thousand volt-amperes.
- ການນໍາໃຊ້ປົກກະຕິ
- Transformer, generator, UPS, and system-capacity ratings.
Kilovolt-Ampere Reactive
A unit of reactive power equal to one thousand volt-amperes reactive.
- ການນໍາໃຊ້ປົກກະຕິ
- Capacitor-bank sizing and power-factor correction.
Kirchhoff’s Voltage Law
The algebraic sum of voltages around a closed electrical loop is zero.
- ການນໍາໃຊ້ປົກກະຕິ
- Circuit analysis, voltage-drop calculations, and troubleshooting.
ກິໂລວັດ
A unit of active power equal to one thousand watts.
- ການນໍາໃຊ້ປົກກະຕິ
- Load demand, motor output, generation, and equipment ratings.
Kilowatt-Hour
A unit of energy equal to one kilowatt of power used for one hour.
- ການນໍາໃຊ້ປົກກະຕິ
- Electricity billing, energy monitoring, and consumption analysis.
ສະວິດຕັດຕໍ່ວົງຈອນໄຟຟ້າພາຍໃຕ້ພາລະ
A switch designed to make and break normal load current within its rating.
- ການນໍາໃຊ້ປົກກະຕິ
- Feeder isolation and controlled load switching.
Light-Dependent Resistor
A resistive sensor whose resistance changes with incident light level.
- ການນໍາໃຊ້ປົກກະຕິ
- Daylight sensing, lighting control, and optical detection.
Liquidtight Flexible Metal Conduit
A flexible metallic raceway with an outer covering intended to limit liquid ingress.
- ການນໍາໃຊ້ປົກກະຕິ
- Outdoor, wet, and industrial equipment connections where permitted.
Locked-Rotor Amperes
The current drawn by a motor when the rotor is stationary and rated voltage is applied.
- ການນໍາໃຊ້ປົກກະຕິ
- Starting-current assessment and protective-device coordination.
Low Smoke Zero Halogen
A cable-material designation intended to produce limited smoke and no halogen acid gas under specified fire conditions.
- ການນໍາໃຊ້ປົກກະຕິ
- Transport, public buildings, data facilities, and confined spaces.
Make Before Break
A contact sequence in which the new connection closes before the existing connection opens.
- ການນໍາໃຊ້ປົກກະຕິ
- Selected transfer or signal applications where brief continuity is required.
Miniature Circuit Breaker
A compact resettable breaker that protects circuits against overload and short-circuit current.
- ການນໍາໃຊ້ປົກກະຕິ
- Final and branch circuits in residential, commercial, and light-industrial distribution.
Motor Control Center
An assembly containing coordinated motor-control and protection units.
- ການນໍາໃຊ້ປົກກະຕິ
- Centralized control of multiple motors in industrial facilities.
Molded Case Circuit Breaker
A circuit breaker in a molded insulating case, generally used for higher-current distribution and adjustable protection.
- ການນໍາໃຊ້ປົກກະຕິ
- Feeders, machinery, and commercial or industrial distribution systems.
Main Distribution Board
The principal low-voltage board distributing power to downstream boards and major loads.
- ການນໍາໃຊ້ປົກກະຕິ
- Commercial buildings, industrial plants, and infrastructure.
Motor Protection Circuit Breaker
A circuit breaker designed around motor overload and short-circuit protection requirements.
- ການນໍາໃຊ້ປົກກະຕິ
- Motor starters, pumps, fans, conveyors, and machinery.
Maximum Power Point Tracking
A control method that keeps a photovoltaic source operating near its maximum available power point.
- ການນໍາໃຊ້ປົກກະຕິ
- Solar inverters, charge controllers, and PV conversion systems.
Main Switchboard
The main assembly containing incoming switching, protection, metering, and outgoing feeders.
- ການນໍາໃຊ້ປົກກະຕິ
- Facility-level low-voltage power distribution.
ສະວິດປ່ຽນຄູ່ມື
A manually operated device that transfers a load between power sources.
- ການນໍາໃຊ້ປົກກະຕິ
- Backup-power systems where source transfer is performed by an operator.
ປິດປົກກະຕິ
A contact state that is closed when the operating device is in its normal, unactuated condition.
- ການນໍາໃຊ້ປົກກະຕິ
- Control circuits, interlocks, alarms, and fail-safe logic.
ສະມາຄົມຜູ້ຜະລິດໄຟຟ້າແຫ່ງຊາດ
A North American industry association whose standards include enclosure-type classifications.
- ການນໍາໃຊ້ປົກກະຕິ
- Equipment specifications, enclosure selection, and North American market context.
ເປີດປົກກະຕິ
A contact state that is open when the operating device is in its normal, unactuated condition.
- ການນໍາໃຊ້ປົກກະຕິ
- Start commands, signaling, relay logic, and controlled switching.
Negative Temperature Coefficient
A thermistor characteristic in which resistance decreases as temperature rises.
- ການນໍາໃຊ້ປົກກະຕິ
- Temperature sensing, compensation, and inrush-current limiting.
Overcurrent Protective Device
A general term for a device that opens a circuit when current exceeds a defined limit.
- ການນໍາໃຊ້ປົກກະຕິ
- Circuit breakers, fuses, and coordinated overcurrent-protection schemes.
Open-Circuit Voltage
The voltage measured across a source when no load current is flowing.
- ການນໍາໃຊ້ປົກກະຕິ
- PV string checks, battery assessment, and source characterization.
ຣີເລໂຫຼດເກີນ
A relay that responds to sustained motor overcurrent and opens the control circuit.
- ການນໍາໃຊ້ປົກກະຕິ
- Contactor-based motor starters and coordinated motor protection.
Point of Common Coupling
The electrical point where a customer system or multiple loads connect to a shared supply.
- ການນໍາໃຊ້ປົກກະຕິ
- Power-quality assessment, distributed generation, and grid interconnection.
Power Conversion System
Bidirectional conversion equipment linking energy storage with AC or DC systems.
- ການນໍາໃຊ້ປົກກະຕິ
- Battery storage, microgrids, and renewable-energy integration.
Power Distribution Board
A panel assembly used to distribute power among multiple circuits or loads.
- ການນໍາໃຊ້ປົກກະຕິ
- Industrial panels, buildings, and equipment distribution.
Protective Earth
A conductor or terminal provided for protective earthing.
- ການນໍາໃຊ້ປົກກະຕິ
- Electrical safety, bonding, and fault-current return paths.
Protective Earth and Neutral
A conductor combining protective-earth and neutral functions in a defined part of an earthing system.
- ການນໍາໃຊ້ປົກກະຕິ
- Specific supply and earthing arrangements where permitted.
ປັດໄຈພະລັງງານ
The ratio of active power to apparent power in an AC system.
- ການນໍາໃຊ້ປົກກະຕິ
- Load assessment, capacitor-bank control, and power-quality management.
Proportional-Integral-Derivative
A feedback-control method combining proportional, integral, and derivative actions.
- ການນໍາໃຊ້ປົກກະຕິ
- Temperature, pressure, flow, speed, and position control.
Passive Infrared
A sensing method that detects changes in infrared radiation from people or objects.
- ການນໍາໃຊ້ປົກກະຕິ
- Occupancy detection, lighting control, and security systems.
Programmable Logic Controller
An industrial controller designed to execute logic and manage machine or process I/O.
- ການນໍາໃຊ້ປົກກະຕິ
- Automation, sequencing, interlocking, and machine control.
Permanent-Magnet Synchronous Motor
A synchronous motor whose rotor magnetic field is produced by permanent magnets.
- ການນໍາໃຊ້ປົກກະຕິ
- High-efficiency variable-speed drives and precision motion systems.
Potential Transformer
An instrument transformer that provides a scaled voltage for measurement or protection.
- ການນໍາໃຊ້ປົກກະຕິ
- Meters, protection relays, synchronizing, and monitoring.
Positive Temperature Coefficient
A resistive characteristic in which resistance increases as temperature rises.
- ການນໍາໃຊ້ປົກກະຕິ
- Temperature sensing and equipment protection.
Photovoltaic
The direct conversion of light into electrical energy using semiconductor devices.
- ການນໍາໃຊ້ປົກກະຕິ
- Solar modules, arrays, inverters, and DC protection systems.
Polyvinyl Chloride
A thermoplastic material widely used for cable insulation, sheathing, conduit, and enclosures.
- ການນໍາໃຊ້ປົກກະຕິ
- General electrical wiring and installation products.
Residual Current Breaker
An informal or legacy expression for a breaker responding to residual current.
- ການນໍາໃຊ້ປົກກະຕິ
- General discussions where the exact RCD, RCCB, or RCBO device type must be clarified.
Residual Current Breaker ທີ່ມີການປ້ອງກັນ Overcurrent
A protective device combining residual-current protection with overload and short-circuit protection.
- ການນໍາໃຊ້ປົກກະຕິ
- Individual final circuits requiring combined protection in one device.
ຕົວຕັດວົງຈອນກະແສໄຟຟ້າທີ່ເຫຼືອ
A breaker that disconnects a circuit when residual current exceeds its operating threshold.
- ການນໍາໃຊ້ປົກກະຕິ
- Earth-leakage and shock-protection applications; separate overcurrent protection may be required.
ອຸປະກອນປ້ອງກັນກະແສໄຟຟ້າຕົກຄ້າງ
The umbrella term for devices that monitor current imbalance and disconnect a circuit when necessary.
- ການນໍາໃຊ້ປົກກະຕິ
- Residual-current protection across residential, commercial, and industrial installations.
Reversing Direct-On-Line Starter
A starter arrangement that reverses motor direction by changing the phase sequence.
- ການນໍາໃຊ້ປົກກະຕິ
- Conveyors, hoists, doors, and machinery requiring forward-reverse operation.
Rigid Metal Conduit
A heavy-wall metallic raceway providing mechanical protection for conductors.
- ການນໍາໃຊ້ປົກກະຕິ
- Industrial, outdoor, and exposed wiring installations.
Root Mean Square
A method of expressing the effective magnitude of a varying electrical quantity.
- ການນໍາໃຊ້ປົກກະຕິ
- AC voltage and current measurement and equipment ratings.
Ring Main Unit (ຕູ້ສະວິດເກຍແບບວົງແຫວນ)
A compact switchgear assembly used in ring-type medium-voltage distribution networks.
- ການນໍາໃຊ້ປົກກະຕິ
- Utility and industrial distribution; included for broader system context.
Resistance Temperature Detector
A temperature sensor that uses the predictable resistance change of a metal element.
- ການນໍາໃຊ້ປົກກະຕິ
- Industrial process and equipment temperature measurement.
Remote Terminal Unit
A field device that gathers data and communicates with a supervisory control system.
- ການນໍາໃຊ້ປົກກະຕິ
- Utilities, substations, pipelines, and geographically distributed assets.
Supervisory Control and Data Acquisition
A system for supervisory monitoring, data collection, alarms, and remote control.
- ການນໍາໃຊ້ປົກກະຕິ
- Industrial plants, utilities, water systems, and infrastructure.
Squirrel-Cage Induction Motor
An induction motor with rotor conductors arranged in a short-circuited cage structure.
- ການນໍາໃຊ້ປົກກະຕິ
- Pumps, fans, compressors, conveyors, and general industrial drives.
Switch Fuse Unit
A switching unit combining load isolation with fuse protection.
- ການນໍາໃຊ້ປົກກະຕິ
- Distribution feeders and equipment requiring manual isolation and fused protection.
State of Charge
An estimate of the energy remaining in a battery relative to its usable capacity.
- ການນໍາໃຊ້ປົກກະຕິ
- Battery monitoring, storage dispatch, and electric vehicles.
Solid-State Motor Soft Starter
A controller that ramps motor voltage to reduce starting current and mechanical shock.
- ການນໍາໃຊ້ປົກກະຕິ
- Pumps, fans, conveyors, and equipment that needs controlled acceleration.
State of Health
An estimate of a battery’s present condition relative to its initial performance.
- ການນໍາໃຊ້ປົກກະຕິ
- Battery maintenance, warranty assessment, and lifecycle planning.
浪涌保护装置
A device that limits transient overvoltage and diverts surge current.
- ການນໍາໃຊ້ປົກກະຕິ
- Distribution boards, control panels, solar systems, and sensitive equipment.
Single Pole, Double Throw
A switch arrangement connecting one common pole to either of two outputs.
- ການນໍາໃຊ້ປົກກະຕິ
- Changeover control, selector circuits, and relay contacts.
Single Pole, Single Throw
A basic switch arrangement that opens or closes one circuit path.
- ການນໍາໃຊ້ປົກກະຕິ
- Simple on-off control.
Slip-Ring Induction Motor
A wound-rotor induction motor using slip rings to connect external rotor circuitry.
- ການນໍາໃຊ້ປົກກະຕິ
- High-starting-torque and controlled-acceleration applications.
Solid-State Relay
An electronic switching device with no moving power contacts.
- ການນໍາໃຊ້ປົກກະຕິ
- High-cycle switching, temperature control, and silent operation.
ສະຫຼັບການໂອນຄົງທີ່
A solid-state switching system that transfers a load between compatible power sources.
- ການນໍາໃຊ້ປົກກະຕິ
- Critical loads requiring rapid source transfer.
Steel Wire Armour
Steel-wire reinforcement used to provide mechanical protection around a cable.
- ການນໍາໃຊ້ປົກກະຕິ
- Power cables installed underground, outdoors, or in demanding environments.
Switchboard (ແຜງຄວບຄຸມໄຟຟ້າ)
An assembly of switching, protection, control, and metering equipment for power distribution.
- ການນໍາໃຊ້ປົກກະຕິ
- Commercial and industrial low-voltage distribution.
ສະວິດເກຍ
A collective term for switching, protection, control, and isolation equipment.
- ການນໍາໃຊ້ປົກກະຕິ
- Power-system distribution and equipment protection.
ປາຕັນ
A modular insulated component used to terminate and interconnect conductors.
- ການນໍາໃຊ້ປົກກະຕິ
- Control panels, distribution boards, machinery, and field wiring.
Totally Enclosed Fan Cooled
A motor enclosure arrangement that limits free air exchange and uses an external fan for cooling.
- ການນໍາໃຊ້ປົກກະຕິ
- Industrial environments where dust and moisture exposure must be considered.
Total Harmonic Distortion
A measure comparing harmonic content with the fundamental component of a waveform.
- ການນໍາໃຊ້ປົກກະຕິ
- Power-quality analysis, drives, inverters, and nonlinear loads.
Three Pole and Neutral
A distribution arrangement with three phase conductors and a neutral conductor.
- ການນໍາໃຊ້ປົກກະຕິ
- Three-phase boards, switches, and distribution systems.
Transient Voltage Suppressor
A component or device used to clamp short-duration voltage transients.
- ການນໍາໃຊ້ປົກກະຕິ
- Electronic circuits, signal interfaces, and localized surge suppression.
ຫ້ອງທົດລອງນັກຂຽນ
A safety science organization associated with standards, testing, and certification services.
- ການນໍາໃຊ້ປົກກະຕິ
- North American product requirements and conformity-assessment context.
ເຄື່ອງສຳຮອງໄຟຟ້າ
A power system that provides immediate temporary supply when the normal source is interrupted.
- ການນໍາໃຊ້ປົກກະຕິ
- Controls, IT loads, telecom, safety systems, and other critical equipment.
Volt
The SI-derived unit of electric potential difference.
- ການນໍາໃຊ້ປົກກະຕິ
- Voltage ratings, measurements, and electrical calculations.
Volt-Ampere
A unit of apparent power in an AC circuit.
- ການນໍາໃຊ້ປົກກະຕິ
- Transformer, UPS, generator, and load-capacity ratings.
Volt-Ampere Reactive
A unit of reactive power in an AC system.
- ການນໍາໃຊ້ປົກກະຕິ
- Power-factor studies and reactive-power compensation.
Variable Frequency Drive
A power-electronic drive that controls AC motor speed and torque by varying supply frequency and voltage.
- ການນໍາໃຊ້ປົກກະຕິ
- Pumps, fans, HVAC systems, conveyors, and process machinery.
Variable Speed Drive
A general term for a drive system that controls motor operating speed.
- ການນໍາໃຊ້ປົກກະຕິ
- Motor-driven processes requiring adjustable speed or torque.
Variable Voltage Variable Frequency
A control method that varies both voltage and frequency for AC motor operation.
- ການນໍາໃຊ້ປົກກະຕິ
- Elevators, HVAC, traction, and industrial motor drives.
Watt
The SI-derived unit of active power.
- ການນໍາໃຊ້ປົກກະຕິ
- Equipment consumption, output, heat loss, and electrical calculations.
Cross-Linked Polyethylene
A thermoset insulation material produced by cross-linking polyethylene.
- ການນໍາໃຊ້ປົກກະຕິ
- Power and control cables requiring defined thermal and electrical performance.
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Common protection acronyms at a glance
These terms are frequently searched together, but each describes a different protection function.
| ຄຳສັບ | ຫນ້າທີ່ຕົ້ນຕໍ | Typical position |
|---|---|---|
| ເກົາຫລີ | ການປ້ອງກັນການໂຫຼດເກີນແລະວົງຈອນສັ້ນ | Final and branch circuits |
| MCCB | ການປ້ອງກັນກະແສໄຟຟ້າເກີນທີ່ມີຄວາມສາມາດສູງກວ່າ | Feeders and larger distribution circuits |
| RCCB | ການປ້ອງກັນກະແສໄຟຟ້າທີ່ເຫຼືອ | Circuits requiring leakage protection |
| RCBO | Residual-current and overcurrent protection | Individual final circuits |
| SPD | Transient overvoltage limitation | Distribution panels and sensitive systems |
| AFDD | ການກວດຈັບຄວາມຜິດປົກກະຕິຂອງສ່ວນໂຄ້ງ | Final circuits where arc-fault risk is addressed |
How VIOX handles electrical terminology
Many abbreviations have more than one meaning, and voltage classes or device names can vary by standard and market. This hub uses the meaning most relevant to low-voltage electrical engineering and clearly labels broader system terms.
Definitions are checked against established engineering usage and terminology resources such as the IEC Electropedia. Always confirm the applicable standard, product documentation, and local requirements before specification.
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