рус | eng | укр |
About EOS Ltd Products Services Applications Quality system Achievements Feedback Contacts
Low voltage variable frequency drives PCTE-T222
Phone/Fax: (+38-057)7381003, 7381101, 7380439
Variable frequency drives for induction motors
Low voltage variable frequency drives PCTE-T222
Medium voltage variable frequency drives of PCTE-TV series
Controlgear assembly of PCTE-T221 series on the base of sub synchronous cascade (SSC) for control over slip ring induction motors
Low voltage variable frequency drives PCTE-T222


  • General information
  • Functions
  • Technical Data
  • Distinguished Features

Controlgear assemblies of PCTE-T222 series for variable frequency drives (VFD) are designed for frequency regulation of speed of pumps, fans, compressors and other mechanisms on the base of 690 V squirrel cage induction motors in 315 – 1600 kW power range. The assemblies provide frequency start, frequency regenerative braking and continuous operation of electric drive in operational frequency range.

To receive more information - Download the catalogue of PCTE-Т222


To send an inquire for delivery - Download inquiry form for VFD, fill in it and send to inquiry@eos.kharkov.org

PCTE-T222 controlgear assemblies for variable frequency drives (VFD) provides:
- Frequency start of an electric motor with the current which does not exceed the rated value for the driven motor
- Catch and start a spinning motor
- Regenerative braking
- Keeping and regulation of motor rotation speed, both in open- and closed loop
- Keeping and regulation of a technological parameter (if a sensor is available) by means built-in PI regulator of a technological parameter
  - Local, remote discrete (from buttons or switch) and digital (RS485) control of start and stop of the electric drive
- Analogue (0…5mA, 4…20mA and 0…10V), discrete (from buttons “+” and “-“) and digital setting of frequency and technological parameter
- Communication via serial interfaces with SCADA
- Automatic alternation of technological parameter during day at operation according to table of settings
- Limiting of maximal and minimal frequency
- Choice up to 4 intervals of “prohibited frequencies”, at which a static operation of the drive is impossible
- Automatic restart after short-time power supply interruption
- 4 programmable analogue outputs and 8 programmable discrete outputs
- 8 analogue inputs
- Protection of the driven motor from exceeding of current, voltage, power, from loss of phase and stall
- Protection from overheating of semiconductor modules
- Fault diagnostics
Additional functions can be provided by means of agreement of technical requirements of Customer.
 

Supply of power circuit of PCTE-T222 is realized by 690 V ac three- phase voltage with isolated neutral.
For power supply from 6 or 10 kV network, an input matching transformer with required primary voltage is delivered.
Input matching transformers can be made on 6 or 12 pulse circuit configurations.
Supply of auxiliary circuit (fans of forced cooling, contactors etc.) is realized from 380 (400) V, 50 Hz three- phase circuit with dead-earthed neutral. Permitted supply voltage variations are plus 10% minus 15% from the rated value.
Rated output voltage of PCTE-T222 – three- phase, 690 V, 50 Hz
Frequency converter efficiency is > 0,98.
Frequency variation range of output voltage is from 0,5 to 50 Hz.
Operation frequency range is 10 – 50 Hz.
PCTE-T222 realizes field orientated control for regulation process.
Ambient temperature at related humidity 95% is from +1 to +35 ° С for indoor installation
Cooling of assembly cabinets is air forced.
Protection degree – IP 21 for indoor installation.
PCTE-T222 can be manufactured for outdoor installation at various climatic conditions – container version with climate control system.
Upon agreement with a Customer a 690 V squirrel cage induction motor can be supplied in the delivery set.

Dimensions of cabinets of controlgear assemblies

Type

Рmotor, kW

Rated output current, А

Dimensions  WxDxH,  mm  

(height with fan)

PCTE-315-Т222       

315

315

1000×850×2000 (2350)

PCTE -400-Т222      

400

400

PCTE -500-Т222       

 500

500

PCTE -630-Т222       

 630

630

PCTE 800-Т222        

 800

800

PCTE -1000-Т222     

 1000

1000

2100×850×2000 (2350)

PCTE -1250-Т222     

 1250

1250

PCTE -1600-Т222     

 1600

1600


 

PCTE-T222 controlgear assemblies for variable frequency drives (VFD) have the following distinguished features:
• sine wave output voltage
• output filters are not required
• distance between the assembly and the motor is not limited
• standard cables without screen can be used
• high frequency common mode currents in motor and load are absent
• realization of high efficient law of motor regulation providing optimal energy performance of standard induction motors and reducing vibration activities at critical frequencies
• low level of harmonic currents generated by the assembly into network
• regenerative braking
• high possible deceleration rate
• increased stability in failure modes due to DC link reactor.
 


 
About EOS Ltd | Products | Services | Applications | Quality system | Achievements | Feedback | Contacts

Copyright © Scientific production enterprise EOS 1992-2017
82, Ac. Pavlov st., Kharkov, Ukraine, 61038 .Phone/Fax: (+38-057)7381003, 7381101, 7380439 All right reserved