Triol Corporation

Kharkiv, Ukraine

At27 medium-voltage multilevel frequency converter is constructed to accomplish frequency control of the speed in cage both asynchronous and synchronous motors. The drive is connected directly to a 6 kv supply and can spread up to 6 kv supply to the load. Variable frequency drive (vfd) may be used at plants with thermal power, mills, water supply facilities, for oil and chemical industries, and at mining and iron-and-steel plants. Advantages of the applying of the at27 vfd: lower power consumption;launch high-starting-torque motors;enhance the reliability and extend the service life of motors;enhance the reliability and extend the service life of machinery driven by motors;eliminate water hammers in a piping system;decrease the rate of equipment failure;reduce costs for repairs and maintenance;integration of the 27 vfd control into the process control system of an enterprise. Operating modes there are two modes of operation provided by at27 vfd while controlling electric motors: manualautomatic

We are offering triol at24 vfd is a reliable solution for the fields of application related with heating, ventilation and air conditioning. These variable frequency drives hvac combines simplicity of management, operational reliability and high performance efficiency. Variable speed drive hvac is known for its multifunctional performance and flexibility in such spheres of application as ventilation and air conditioning. A large number of security and service functions make vfd hvac the universal solution. Advantages of applying vsd hvac: start, stop and control of motor rotation frequency;acceleration and braking ramps including s-shaped ramps;reversal;acceleration, decreasing, stop;protection of the motor overcurrent, overload protection;motor control by external 2-wire and 3-wire sensors;saving control configuration of motor;dynamic braking of motor;simultaneous control of five motors (cascade controller macros);automatic control of technology process by closed-loop system principle using built-in pid-controller;operation of asynchronous motor by custom preset diagram in automatic or manual mode;startreversalstop of motor with assigned rates;changing and autonomic presetting an acceleration deceleration time;connecting regenerative unit is available;frequency mode of motor deceleration;permit of resonant frequencies.