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Description
Automatic Voltage Regulator AVR R120 for Leroy Somer GeneratorPart Number: OEM NO. R120 Application: For Leroy Somer Generator The R120 is used on the following Leroy Somer Alternators: TAL040 B, TAL040 C, TAL040 C1, TAL040 D, TAL040 E, TAL040 FTAL042 A, TAL042 B, TAL042 C, TAL042 D, TAL042 E, TAL042 F, TAL042 G, TAL042 HTAL044 A, TAL044 B, TAL044 C, TAL044 D, TAL044 D1, TAL044 E, TAL044 H, TAL044 J, TAL044 KSAME EXACT AVR AS: Leroy Somer Voltage Regulator AEM230RE005Leroy Somer Voltage Regulator 4969966
Part Number:
OEM NO. R120
Application:
For Leroy Somer Generator The R120 is used on the following Leroy Somer Alternators:TAL040 B, TAL040 C, TAL040 C1, TAL040 D, TAL040 E, TAL040 FTAL042 A, TAL042 B, TAL042 C, TAL042 D, TAL042 E, TAL042 F, TAL042 G, TAL042 HTAL044 A, TAL044 B, TAL044 C, TAL044 D, TAL044 D1, TAL044 E, TAL044 H, TAL044 J, TAL044 KSAME EXACT AVR AS:Leroy Somer Voltage Regulator AEM230RE005Leroy Somer Voltage Regulator 4969966
thecomponents on the AVR should becompletely encapsulated with suitable PUresin compound to absorb transients/vibrations during operation.Alternator excitation
Specification:
Sensing input:- Voltage: 277 VAC ± 10% for 1-phase,415 VAC line-to-line ± 10% for 3-phase,2-line sensing.
The AVR senses the trueaverage of the line-to-line waveform. Usethe resistor (SMD) network for trouble-freesensing and control of sensed voltage/ regulation.
Input power:- Voltage: 277 VAC rms ± 10%- Frequency: 50/60 Hz
Output power:- Voltage: 95 VDC for 240 VAC Input-
Current:4 A DC6 A for 30 sec. (when allowed by the field resistance)Operating temperature: -20ºC to +70ºC
Storage temperature: -40ºC to +80ºC
Voltage setting: min ± 10% of rated voltage.
Stability setting: can be adjusted to obtaina correct transient response in steady state.
Under frequency roll-off setting: availablebelow 46 Hz for 50 Hz and below 56 Hz for 60 Hz.
Voltage build-up: 2 Volts (L-N)
Voltage regulation: ± 1% at the AVRterminals with a THC <5%.
Thermal drift: ± 1% for 30ºC change in temperature.
Response time: less than 50 ms.
Closed loop response: typically 0.5 sec to recover 98% of the defined voltage for a field forcing ratio of 1:2.
Sensing loss protection: the voltageshould disappear when the sensing circuit is open.
Overexcitation protection: 10 VDC to 85 VDC.
Set point: 60 VDCProtection fuse: 4 A, 240 VAC.
Potentiometer sealing: except for theV-trim potentiometer, all potentiometers are sealed.
Frequency roll-off indicator: LED provided (UF).
Sensing loss indicator: LED provided (SL).
Overexcitation indicator: LED provided (OE).
Protection on the devices: suitable R-Csnubber to be provided for the device usedto protect against voltage surges.
Potting/Encapsulation
(typical)- Full load:Excitation voltage: 40 to 50 VExcitation current: 2.5 to 4.0
Note:It is heavey parts.The freight calculated by system is for air express.Please contact us for freight by sea.
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Exchange/Return Notes
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