supply of the vvvf drive of 37 kw 415 v ac is required for eot crane 20 ton for crpss travel motion with crane control software. supply, installation and commissioning & testing vvvf (variable voltage variable frequency) drive 37 kw heavy duty with inbuilt direct torque control system. power output : 37 kw, 50 hp, 415 v three phase output voltage : 0 to 415 v, acnormal duty : 80 amps. heavy duty : 70 amps. rated input voltage : 380-480 v, ac, 3 phasefluctuation voltage : -15, 10% , frequency : 50-60 hz ,frequency resolution: 0.1 hz (maximum )over torque capacity - heavy duty : 150% (minimum) for 1 minute. normal duty : 120% (minimum) for 1 minute and 200% for 3 seconds. transient over toque : 150 % (minimum) of nominal motor torque for 60 second (minimum) speed : variable, suitable for preset speeds .ambient temperature : 10 to 50 degree celsius at full load basic features of the drive -:1. performance ? excellent crane control algorithm provides best in class torque performance and speed regulation.2. control the large easy to read customizable 2 line display uses plain text words.3. start-up the quick start menu incorporates macro configurations for easy and fast commissioning.4. an integrated mudbugs port for network connectivity and easy integration into automation system or other optional communications connectivity.5. expandable the simple addition of i/o, communication cards, and programmable controller cards which make the drive highly adaptable and connectable to other product.6. drive booting time drive booting time should not to be more than 02 seconds. make -: crompton greaves, yaskawa , siemens , abb, l&t, schneider or other equal.the vvvf drive of 37 kw 415 v ac is required for eot crane 20 ton for crpss travel motion with crane control software. supply, installation and commissioning & testing vvvf (variable voltage variable frequency) drive 37 kw heavy duty with inbuilt direct torque control system. power output : 37 kw, 50 hp, 415 v three phase outp