Newage Stamford MX341

Newage Stamford MX341
MX341 is a two phase sensed Automatic Voltage Regulator and forms part of the excitation 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.

Please read the specification sheet for further details

SENSING INPUT Voltage 190-264V ac max, 1 phase, 2 wire
Frequency 50-60 Hz nominal
POWER INPUT (PMG) Voltage 140-220V ac max, 3 phase, 3 wire
Current 3A/phase
Frequency 100-120 Hz nominal
OUTPUT Voltage max 120V dc
Current continuous 2.7 A
Intermittent 6A for 10 secs.
Resistance 15 ohms minimum
REGULATION +/- 1% (see note 1)
THERMAL DRIFT 0.03% per oC change in AVR ambient (note 2)
SOFT START RAMP TIME 3 seconds
TYPICAL SYSTEM RESPONSE AVR Response 10 ms
Filed current to 90% 80 ms
Machine Volts to 97% 300 ms
EXTERNAL VOLTAGE ADJUSTMENT +/-10% with 1 k ohm 1 watt trimmer (see note 3)
UNDER FREQUENCY PROTECTION Set point 95% Hz (see note 4)
Slope 170% down to 30 Hz
UNIT POWER DISSIPATION 12 watts maximum
ANALOGUE INPUT Maximum input +/- 5V dc (see note 5)
Sensitivity 1v for 5% Generator Volts (adjustable)
Input resistance 1k ohm
QUADRATURE DROOP INPUT 10 ohms burden
Max. sensitivity: 0.07 A for 5% droop 0PF
Max. input: 0.33 A
OVER EXCITATION PROTECTION Set point 75 V dc
Time delay 10 seconds (fixed)
ENVIRONMENTAL Vibration 20-100 Hz 50mm/sec
100Hz – 2kHz 3.3g
Operating temperature -40 to +70oC
Relative Humidity 0-70oC 95% (see note 6)
Storage temperature -55 to +80oC
NOTES 1. With 4% engine governing.
2. After 10 minutes.
3. Applies to Mod status D onwards. Generator de-rate may apply. Check with factory.
4. Factory set, semi-sealed, jumper selectable.
5. Any device connected to the analogue input must be fully floating (galvanically isolated from ground), with an insulation strength of 500V ac.
6. Non condensing.
Specification sheet Download
Copyright MAXXmarketing Webdesigner GmbH
Unit 22 - Industrial Estate
Station Rd
Ditton Priors
Bridgnorth
Shropshire
WV16 6SS
United Kingdom

This email address is being protected from spambots. You need JavaScript enabled to view it.
Tel: +44 (0)1746 712670
Fax: +44 (0)1746 712746
map
This email address is being protected from spambots. You need JavaScript enabled to view it.