FEATURES of Caterpillar Leroy Somer EM15 AVR:
• Over-excitation protection – limit can be adjusted via a potentiometer (IEXC.)
• Green status LED indicating unit is powered on
• Red status LED indicating excitation current limiting When used with EMCP 4.3/4.4 and IVR-compatible
EMCP 4.1/4.2 controllers, the Integrated Voltage Regulator system o rs:
• Automatic Voltage Regulation (AVR)
• Programmable stability settings
• Soft start control with an adjustable time setting in
AVR control mode
• Dual Slope Under Frequency (Volts / Hz) regulation
• Three-phase or single-phase generator voltage (RMS) sensing/regulation in AVR mode EMCP 4.3/4.4 and IVR-compatible EMCP 4.2 controllers also offer:
• Power Factor Regulation (PF)
• Generator paralleling with reactive droop compensation
• Line drop compensation
SPECIFICATIONS for Leroy Somer Caterpillar EM15 AVR:
ELECTRICAL
Generator Excitation Types Self Excitation / Internal Excitation / Permanent Magnet (PMG)
Max. Continuous Field Current Output 7 Amps
Max. Forcing Field Current Output 15 Amps
Max. AC Voltage Input (X1:X2, Z1:Z2) 240 Vrms
ENVIRONMENTAL
Operating Temperature Range −40 °C (−40 °F) to +70 °C (+158 °F)
Storage Temperature Range −40 °C (−40 °F) to +85 °C (+185 °F)
Relative Humidity Tolerance 95% non-condensing humidity
Salt Spray 5% salt (NaCl) solution for 120 hrs
Vibration 4.5 G-rms, 24-2000 Hz in 3 orthogonal planes
Electromagnetic Compatibility RF Immunity (Radiated & Conducted)
RF Emissions (Radiated & Conducted)
Electrical Transients
Weight 800 g ± 30 g
Power Consumption (at Max. Continuous Rating) <600 VA
The Leroy Somer EM15 AVR Voltage Regulator Excitation Module is a power electronics component designed to provide excitation current to the generator that is controlled by the Integrated Voltage Regulator (IVR) feature in the EMCP 4 controls.
The EM15 is designed and factory tested toworkseamlesslywith Leroy-Someralternators using Shunt Excitation (SE),
AREP Excitation (AREP) or PermanentMagnet (PMG) excitation systems.