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Electric Drives

Explosion-proof RemTEK electric drives are aimed to regulate stop, shut-off and control pipeline valves and fittings with diameter from 25 to 1200 mm, in explosion hazardous areas of class 1 and 2 as per GOST P 51330.9-99 in severe operating conditions with the extended ambient temperature range (from -60 to +50 °С).

Application -  wedge valves, sliding shutters, ball valves, butterfly valves, cut-off devices etc.

Distinctive feature of Tomsk Electronic Company operation style includes designing and mass production of explosion-proof electric drives with electronic control system and all their components. gearboxes, electric motors, electronic control modules. For this purpose the Company employs highly qualified technicians and engineers and possesses the following manufacturing subdivisions: mechanical, electronic and electrical engineering. To ensure high quality of its products the Company has setup the testing laboratory, provided with the up-to-date equipment: shake tables, climatic chambers, loading stands, microsecond and nanosecond impulse interferences generators, static discharges generators, units for undervoltage and overvoltage simulation in supply line. Electric drive after-sales service is provided by special maintenance department.

Main features of explosion-proof RemTEK electric drives

  • Explosion protection marking 1ExdIIBT4 allows using electric drives in various types of industry: oil, gas, chemical, petrochemical and others
  • The extended voltage ranges 380 V (220 V) from minus 50 to plus 47 %; breaks up to 3 seconds are allowed
  • The extended ambient temperature ranges from minus 60 to plus 50 °С 
  • Moisture and dust protection level IP67 
  • Highly reliable gearboxes, based on planetary and lantern-wheel gearing and ballscrew, with consistent aircraft antifreeze greases and dry screw and nut gearing with antifriction materials, ensures electric drives with life duration up to 1500 cycles in 'open-close' mode
  • Designs: multiturn drives up to 10000 N•m, turning drives up to 4000 N•m, linear drives up to 30000 N
  • Wide ranges of travel speed: multiturn drives - from 0,75 rpm to 300 rpm, turning and linear drives travel time - from 60 seconds to 3 seconds. Electric drives with V-type electronic module are provided with the function allowing the fast reprogramming by the user of the control unit for various required travel speed
  • There are four modifications of control units and electric drives, respectively depending on electric motor control mode:

Modification V - with in-built frequency converter implementing asynchronous electric motor vector management algorithm

Modification S - with in-built reversing-type thyristor converter providing smooth speed-up and accurate dynamic braking

Modification R - with external solenoid reversing-type starter (to be installed to the power cabinet), operated by controller built in the electric drive. This is an analog to the electromechanical drive, in which mechanical end switches for torques and positions are replaced with electronic ones

Modification M - with in-built nonreversible thyristor converter and external solenoid reversing-type starter. This is an analog to the electromechanical drive with electric motor smooth start function

  • In-built fast-response microcomputer with nonvolatile memory provides optimum algorithms for asynchronous and synchronous electric motor control depending on the design and all necessary functions for pipeline valves control. This allows ranking RemTEK electric drives as intelligent
  • In-built host module (black box) registers all time-tagged emergency and pre-emergency events (supply voltage, currents, temperature, torque, rate, position, control commands, readjustments) and allows maintenance staff to service equipment expeditiously and timely 
  • All modes of electric drive control: on-site by handles or IR remote control panel, remotely via digital control signals of clean contact type or CAN, RS-485 interfaces with Modbus, Profibus protocols, via current control circuits with (4-20) mA, by a mechanical hand wheel
  • In-built noncontact position sensor for 9999 turns provides all valve types matching as for required travel, and position control if power supply fails
  • In-built electronic torque limitation algorithm ensures high reliability, accuracy (up to 10%), wide ranges of cut off torques (from 20 to 100%) when moving in different directions, and as per zones: when speeding-up, stopping and moving. This allows regulating pipeline valves with care and ensures their long life
  • Two basic modes of valves control: travel up to pre-set position within gauged interval of the position sensor or travel up to pre-set limitation torque (compressing torque)
  • Additional modes: travel during preset time, electric motor drying, jammed valves turning off/uncapping, electronic position holding, high-precise arrival to the required position at positional controller, pressure, temperature and flow rate control by means of in-built PID control and technological sensors (that are hooked up to analog inputs (4 - 20) mA), electrical feed and control circuits testing for phase break and short-circuit with the help of external controller, on-site electric drive calibration without removal
  • Complete electronic high-accuracy protection of the electric motor ensures its long life
  • All main fits per Industrial Standard OCT 26-07-763-73 (A, B, C, D, E) for multiturn electric drives, per ISO 5211-2001 (F05, F07, F14) for turning electric drives and adapter kit for linear electric drives allow matching electric drives principal dimensions to all types of valves

Main features of electric drives are compatible with technical parameters of pipeline valves by the following manufacturers:

RUST-95, TyazhPromArmatura, Korvet, SAMSON, SPLAV-М, Yugo-Kamskiy MZTA, Murom Industrial Valves Plant, SamaraVolgoMash, Blagoveshchensk Valves Plant, GUSAR, Ikar, Kotelnikovo Valves Plant, Ust-Kamenogorsk Valves Plant, Omsk Valve-Flange Plant, GazPriborAvtomatika, Chekhov Plant of Power Engineering.

To select  an electric drive one can use the agreed  flow charts  or search it by setting the valve type.

 

Main Comparison Characteristics of RemTEK-01, RemTEK-02, RemTEK-03 Electric Drives

Technical Parameters

RemTEK-01

RemTEK-02

RemTEK-03

Control module modifications

V

V

S

M

R

R

M

S

 Nominal valve diameter DN, mm

100…1200

25…200

100…1200

 Compatibility with control valves

yes

limited

yes

 Compatibility with stop valves

yes

 Electric drives embodiment

multiturn

multiturn
turning
linear

multiturn

 Rotation torque ranges, Nm

  

 Force ranges, N

300…10000

40…150
multiturn drives

125…4000
turning drives

7000…30000
linear drives

300…10000

 Travel rates ranges

0,6....96 rpm

3…70 rpm
multiturn drives

0,25…3 rpm
turning drives

0,4…20 mm/sec
linear drives

6; 7,5; 12; 15; 20; 40; 48; 60; 96 rpm

 Rate alternation within the ranges from 10% to 200%

yes

no

 Smooth start

yes

no

yes

 Motion capability at rated load and if one electrical phase is broken

yes

no

 Currents of the electric drive for maximum torque

not more than two rated currents of the electric motor

(4 - 8) rated currents of electric motor

 

Example record for ordering an electric drive

RemTEK-01.C.1000.20.5.V.16.1.a.UHL1 TU 3791-332-20885897-2004

Explosion-proof RemTEK-01 electric drive, multiturn, V type of connection to pipeline fittings per Industrial Standard 26-07-763-73, maximum break torque 1000 Nm, maximum rate 20 rpm at load of 500 Nm, embodiment (design issue) 5, modification as per V control module type, remote control mode version 16 (three digital inputs 220 V АС, eight digital all-purpose outputs from 6 to 250 V of clean contact type, serial interface RS-485 (Modbus RTU protocol)); 1 - host module is available, а - sealed lead-ins for armored cables.

 

Check List

Certificates and Permits

 

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