1 Introduction
The AC Automatic Voltage Regulator
AVR Regulation
The AC Automatic Voltage Regulator
The automatic voltage regulator (AVR) is a device designed to
regulate voltage automatically – that is, to take a fluctuating voltage
level and turn it into a constant voltage level. There are many types of
automatic voltage regulators.
Induksi magnetik tegangan stabilizer
Teknik tap berubah regulator
Motor-driven autotransformer variabel
Variac bermotor
Bermotor variabel transformator
OLTC
Pada beban tekan changer
Servo regulator tegangan
Tegangan servo stabilizer
Langkah regulator tegangan
Tap changer
Tap-switching regulator tegangan
Autotransformer variabel
Regulator tegangan otomatis tidak hanya bervariasi dalam ukuran dan desain, tetapi juga dalam nama dan deskripsi. Nama umum untuk AVRS meliputi:
- Auto-boost regulator
- Regulator tegangan konstan
- Transformator tegangan konstan
- CVT
- Konversi ganda regulator tegangan elektronik
- Regulator tegangan elektromekanis
- Stabilizer tegangan elektromekanis
- Elektronik tap-switching regulator tegangan
- Regulator tegangan elektronik
- EVR
- Besi
- Transformator ferroresonant
- Regulator tegangan ferroresonant
- LDC
- Baris regulator tegangan
- Baris penurunan kompensator
Induksi magnetik tegangan stabilizer
Teknik tap berubah regulator
Motor-driven autotransformer variabel
Variac bermotor
Bermotor variabel transformator
OLTC
Pada beban tekan changer
Servo regulator tegangan
Tegangan servo stabilizer
Langkah regulator tegangan
Tap changer
Tap-switching regulator tegangan
Autotransformer variabel
AVR Regulation
AVR RegulationAn AVR takes in a range of voltage levels and automatically outputs a voltage with a much narrower range of voltage levels. For example, a typical automatic voltage regulator for power quality application may have an input voltage range of +10% to -25% of the nominal input voltage and convert this to a regulated voltage range of +3% to -3% of the nominal output voltage as shown the graphic for a 480V input and output. A voltage regulator may have a symmetrical input voltage range (e.g. +10% to -10% of nominal voltage) or an asymmetrical input voltage range as shown in the example. The choice of symmetrical versus asymmetrical input voltage range is dictated by purpose and design of the voltage regulator. The output voltage regulation range is almost universally symmetrical (e.g. +3% to -3% of nominal output voltage).
A voltage regulator may also perform a voltage step up or step down function whereby the nominal incoming voltage is transformed to a different output voltage level (e.g. a step up from a 208V input to a 400V output). For a voltage regulator with step up or step down capability, the input and output voltage ranges are usually applied to the input and output voltages (e.g. the example would become 208V +10/-25% on the input voltage range and 400V +3%/-3% for the regulated output range).
A voltage regulator may also perform a voltage step up or step down function whereby the nominal incoming voltage is transformed to a different output voltage level (e.g. a step up from a 208V input to a 400V output). For a voltage regulator with step up or step down capability, the input and output voltage ranges are usually applied to the input and output voltages (e.g. the example would become 208V +10/-25% on the input voltage range and 400V +3%/-3% for the regulated output range).
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