Holdwell AVR MX341 US1 Automatic Voltage Regulator Module for Stamford Generator
Highlights:
1.Stamford Generator
Details:
Introduction:
MX341 is a two phase sensed Automatic Voltage Regulator(AVR) and forms part of the exciation system for a brush-less generator.
Excitation power is derived from a three-phase permanent magnet generator(PMG),to isolate the AVR control circuits from the effects
of nonlinear loads and to reduce radio frequency interference on the generator terminals.sustained generator short circuit current is another feature of the PMG system.
The AVR senses the voltage in the main generator winding and control the power fed to the exciter stator and hance the main rotor to maintain the generator output
voltage within the specified limits,compensating for load sprrd,temperature and power factor of the generator
The AVR has the faclity for droop CT connection,to allow parallel running with other similarly equipped generators
Specification:
SENSING INPUT
Voltage190-264V ac max, 1 phase 2 wire
Frequency50-60HZ nominal
POWER INPUT
Voltage140-220 V ac max, 3 phase,3 wire
CURRENT:3A/phase
Frequency100-120HZ nominal
OUTPUT
Voltagemax 120V dc
Currentcontinuous2.7Adc
Intermittent6Afor 10 secs
Resistance15 ohms minimum
REGULATION
+/-1%
THERMAL DRIFT
0.03% per deg.C change in AVR ambient
SOFT START PAMP TIME
3 sec
TYPICAL SYSTEM RESPONSE
AVR respone10ms
Filed current to 90%80ms
Machine Volts to 97%300ms
EXTERNAL VOLTAGE ADJUSTMENT
+/-10% with 1k ohm 1 watt trimmer
UNDER FREQUENCY PROTECTION
Set point95%HZ
Slope170% down to 30HZ
UNIT POWER DISSIPATION
12 watts maximum
ANALOGUE INPUT
Maximum input +/-5V dc
Sensitivity 1V for 5% Generator Volts(adjustable)
Input resistance 1k ohm
QUADRATURE DROOP INPUT
10 ohms burden
Max.sensitivity:0.07Afor 5% droop OPF
Max.input:0.33A
OVER EXCITATION PROTECTION:
Set point:75vdc
Time relay:10sec
Environmental
Vibration20-100HZ 50mm/sec
100Hz 2kHz3.3g
Operating temperature -40 to +70 C
Relative Humidity 0-70C 95%
Storage temperature -55 to +80 C
Packing:
AVR MX341---------1Piece
English Manual------1Piece
Carring Box-----------1Piece
1.Stamford Generator
Details:
Introduction:
MX341 is a two phase sensed Automatic Voltage Regulator(AVR) and forms part of the exciation system for a brush-less generator.
Excitation power is derived from a three-phase permanent magnet generator(PMG),to isolate the AVR control circuits from the effects
of nonlinear loads and to reduce radio frequency interference on the generator terminals.sustained generator short circuit current is another feature of the PMG system.
The AVR senses the voltage in the main generator winding and control the power fed to the exciter stator and hance the main rotor to maintain the generator output
voltage within the specified limits,compensating for load sprrd,temperature and power factor of the generator
The AVR has the faclity for droop CT connection,to allow parallel running with other similarly equipped generators
Specification:
SENSING INPUT
Voltage190-264V ac max, 1 phase 2 wire
Frequency50-60HZ nominal
POWER INPUT
Voltage140-220 V ac max, 3 phase,3 wire
CURRENT:3A/phase
Frequency100-120HZ nominal
OUTPUT
Voltagemax 120V dc
Currentcontinuous2.7Adc
Intermittent6Afor 10 secs
Resistance15 ohms minimum
REGULATION
+/-1%
THERMAL DRIFT
0.03% per deg.C change in AVR ambient
SOFT START PAMP TIME
3 sec
TYPICAL SYSTEM RESPONSE
AVR respone10ms
Filed current to 90%80ms
Machine Volts to 97%300ms
EXTERNAL VOLTAGE ADJUSTMENT
+/-10% with 1k ohm 1 watt trimmer
UNDER FREQUENCY PROTECTION
Set point95%HZ
Slope170% down to 30HZ
UNIT POWER DISSIPATION
12 watts maximum
ANALOGUE INPUT
Maximum input +/-5V dc
Sensitivity 1V for 5% Generator Volts(adjustable)
Input resistance 1k ohm
QUADRATURE DROOP INPUT
10 ohms burden
Max.sensitivity:0.07Afor 5% droop OPF
Max.input:0.33A
OVER EXCITATION PROTECTION:
Set point:75vdc
Time relay:10sec
Environmental
Vibration20-100HZ 50mm/sec
100Hz 2kHz3.3g
Operating temperature -40 to +70 C
Relative Humidity 0-70C 95%
Storage temperature -55 to +80 C
Packing:
AVR MX341---------1Piece
English Manual------1Piece
Carring Box-----------1Piece
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