AVR MX321

AVR MX321

MX321 is a three phase sensed Automatic Voltage Regulator and forms part of the excitation system for PMG excited brush-less generator.

Reference 699ASZMX321

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€385.99

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Description

The AVR includes an over-voltage protection feature with internal shutdown of the AVR output device, plus the ability to trip an optional excitation circuit breaker if required.

Adjustable Soft start circuit is included to provide a smooth controlled build up of generator output voltage.

The AVR has the option for droop CT connection, to allow parallel running with other similarly equipped generators.

An analogue input is provided allowing connection to a New Age Power Factor controller or other external device with compatible output.

Product Details

Manufacturer: TGE
Model: Equivalent STAMFORD MX321
TGE-MX321
Regulation: +/- 0.5% RMS with 4% engine governing
External Voltage Adjustment: +/-10% with 5 k ohm 1 watt trimmer
SENSING INPUT: Frequency 50-60 Hz nominal
Voltage 190-264V ac max - 2 or 3 phase
POWER INPUT (PMG): Current 3A/phase
Frequency 100-120 Hz nominal
Voltage 170-220V ac max 3 phase 3 wire
OUTPUT: Current continuous 3.7 A
Intermittent 6A for 10 secs.
Resistance 15 ohms minimum
Voltage max 120V dc
THERMAL DRIFT: 0.02% per deg. C change in AVR ambient
SOFT START RAMP TIME: 0.4 - 4 seconds
TYPICAL SYSTEM RESPONSE: AVR response 10 ms
Filed current to 90% 80 ms
Machine Volts to 97% 300 ms
UNDER FREQUENCY PROTECTION: Max. Dwell 20% volts/S recovery
Set point 95% Hz
Slope 100-300% down to 30 Hz
UNIT POWER DISSIPATION: 18 watts maximum
ANALOGUE INPUT: Input resistance 1k ohm
Maximum input +/- 5 Vdc
Sensitivity 1v for 5% Generator Volts (adjustable)
OVER EXCITATION PROTECTION: Set point 75 V dc
Time delay 8-15 seconds
ENVIRONMENTAL: 100Hz – 2kHz 3.3g
Operating temperature -40 to +70 °C
Relative Humidity 0-700C 95%
Storage temperature -55 to +80 °C
Vibration 20-100 Hz 50mm/sec
CURRENT LIMIT INPUT: 10 ohms burden
Sensitivity range 0.5 – 1A
QUADRATURE DROOP INPUT: 10 ohms burden
Max. input 0.33 A
Max. sensitivity 0.22 A for 5% droop 0PF
OVER VOLTAGE DETECTOR INPUT: CB trip coil resistance 20-60 ohms
CB trip coil volts 10-30 vdc
Set point 300v. Time delay 1 Sec