Starting solutions includes following steps and we provide all the services:

• Understand the needs of customers.
• Study about the network abilities.
• Suggest our suitable starter in case of starting study.

Understand the needs of customers:

Everyone is excellent in their day to day activities and they try to achieve maximum level of excellence…
But every customer may not be fully aware of the problem in minute area of the plant and that problem
may affect in a large volume in the form million dollars money and time.
Unfortunately most of the manufacturing plants will have limited Electrical Engineers and those engineers
are engaged with day to day plant operations and maintenance activities, so they could not concentrate on
each and every minor problem that may not influence the plant operation in short time , but they my aware
it will case big problem in long term. We understand this from our experience and after getting motivation
from many customers,to help and to create healthy environment, we started to help the industry in some
critical areas as Starting of large motors.

We reach customer and we interact with customer with many questions, to understand :

• What is the problem facing by customer?
• Why the problem existence?
• What are the causes for the problem?
• What are alternatives causes and effects for the defined problem?

Study about the network.

Once customer understand that there is some problem and they are in need to know the detailed information,
we are offering detailed network study and we provide complete system studies with suggested remedies.

• We do voltage drop analysis.
• We do motor starting studies.
• We do short circuit analysis.
• We also do the harmonic study.

Suggest our suitable starter in case of starting study.

Based on the results from above studies and customer suggestions we will propose our ELTECH ENGINEERING
make FCMA soft starters with desired starting requirements.

FCMA Soft Starters:

We are leading and quality manufacturers of FCMA Soft Starters as per IS5553 and relevant IEC Standard -
An advanced generation of conventional series reactors.

"We control the starting currents up to or less than 1.15 times of motor full load current using reactance
due to magnetic Flux (Very high Flux generated due to the High in rush current of motors).
An unsaturated magnetic core which frames the reactor windings and make magnetic circuit path is
part of our impedance controller.

Product Range :

Type of AC Motors : Synchronous Motors, Squirrel cage and Slip ring Inductions Motors.
Power : 10KW to 20000 KW.
Voltage : 415V to 11KV.
Applications : We don’t have any limitations and can be used for applications which doesn’t need speed variation and need smooth starting.

FCMA Soft Starters for Squirrel cage and Synchronous MOTORS:

“We believe in team working” and we are the team of highly experienced (More than 17 years ) and committed young Engineers.
We provide “Complete One roof solutions” for all type of electrical challenges.

Advantages to Customers with our Solutions:

• One roof solution for complete starting system both Breaker and Soft starters panels.
• Tailored made solution to suite the requirements and customers priorities.
• Experienced design team in design and manufacturing of FCMA Soft Starters.
• Guaranteed minimum possible lead time.
• Assured support for commissioning and after sales services.

Salient Features of FCMA Soft Starters:

• Extremely rugged in construction.Suitable for extreme weather conditions like dusty and desert environment.
• No active electronic components involved.
• Starting current up to less than 1.15IFL.
• Starting of motors with limited power.
• Built in bypass for full voltage during running.
• Can be designed for multi motor starting.
• No harmonics generation- Zero Harmonics(Demonstrated).
• Zero maintenance hence zero operations cost.
• CNC fabricated panel construction with up to IP45 protection by default.
• Indigenous components and Magnetic Flux Control technology.

Milestones achieved:

• Successfully commissioned 16 MW,11KV FCMA Soft Starter for Synchronous
Motor at Devadula LIS of Telangana State.
• Achieved starting current of 1.16IFL with our LT Soft Starter. Motor is 500KW,
415V driving Atlas Capco Air compressor, against committed starting  current was 1.5IFL.
• Achieved Starting current of 1.81IFL with our HT Soft Starter. Motor is 820KW, 11KV
driving Samsung-ELGI Centrifugal Air compressor.
• Successfully Commissioned 4 MW,11KV ASR for Slipring Induction Motor.

Data required for accurate starting current:

• Motor Data sheet with details of I,V,F,P,N,PF.
• Driven equipment / Application details.
• Motor current speed curve.
• Motor thermal withstand curve.
• Motor torque speed curve.
• Load torque speed curve.
• Motor Rotating Inertia (GD2).
• Load Rotating Inertia (GD2).
• Motor No. of starts per hour.
• Ambient condition.
• Grid Capacity/ Minimum SCC MVA.
• Transformer / Generator capacity.
• Voltage drop limitations if any.

Slip Ring Induction Motor Starters (Starting & Running):

Auto Slip Regulators for Slip ring Induction motors – Continuous Run.

Range : 0.5 KW/415 V to 6,000 KW/3.3 KV, 6.6 KV, and 11 KV.
Application : For All Slip ring Motors.

Technical note on Slip dependent Rotor Starters:(Auto Slip Regulator)

Slip dependent Rotors starts works on variable resistance directly proportional
slip intern to load. (Resistance α Slip α Load).

STARTING: While starting Motor requires high starting torque to drive very large inertia
drives like CaneFibrizer, Chopper and Levelers.
• To achieve this high starting torque one has to introduce high resistance in to rotor circuit
of Slip Ring Induction Motor(SIM). At the time of starting the slip is Unity  (Maximum) hence
our Rotor starter will offer maximum Resistance, achieve the maximum torque.
• As Speed increase towards rated speed,to maintain high motor torque delivered at all speeds,
one has to reduce the rotor resistance accordingly, as speed increase the slip reduces hence
our Resistance will also reduce , so that we could ensure Motor delivers constant maximum
torque at all time of traveling from zero speed to   rated speed.
• Motor acceleration is smooth, step less and jerk less. Since resistance reduction is step less and automatic.
• Automatic Zero-speed sensing and offering high value of resistance at start. Thus avoid motor damages.

RUNNING: During running at the instant of sudden quick load due to uneven raw material
feeding there will be sudden torque demands from motor results in current kicks, which may
be more than 150%,also the reduction of speed.To overcome this one can introduce resistance
in rotor circuit to limit current kicks and to shift motor operating point to maximum position on
T_N curve during sudden loads. As standard practice in industry there will be fixed buffer
resistance which alters motor T_N characteristics such that motor operating point will be at
maximum torque condition always, irrespective of kick loads. This leads in increases loss due
to the operating slip increased and also due to the fixed buffer (any one can observe fumes)
more losses dissipating in terms of heat.

With our system we introduce impedance in the rotor circuit,which value is inversion to the
motor speed(at high speed-rated speed resistance minimum and lower speed due to the kick
loads – high resistance hence limits current kick and motor deliver maximum torque with
respect to that speed).Factitious Resistance values of our Dynamic Buffer Resister are dynamic
in nature with very less response time(almost instantaneous).

By introducing the dynamic resistance which is proportional to slip, we could save the energy
up to 8% of the motor power, comparatively which was lost in case of fixed 15% buffer.

Applications :

This type of loads appear normally

Sugar industry - Cane Fibrizer , Cane chopper ,Cane leveler

Cement industry - lime stone crusher

Paper industry - Wood chopper , pulp grinder

Salient Features:

• Slip dependent Resistance provides automatic resistance variation- saves energy that loss in convention at Buffer.
• Low Starting current.
• High starting torque.
• Built in bypass contactor.
• No moving parts & stepless cutting of Resistance.
• No maintenance.

Slip Ring Induction Motor Starters (Starting)

Automatic Rotor resistance Starters (ARS)For Slip ring Induction motors –Starting.

We provide ARS Starters for Slip ring induction motors, which connected in rotor circuit.

Range : 0.5 KW/415 V to 6,000 KW/3.3 KV, 6.6 KV, and 11 KV.

Application : For All Slip ring Motors.

Technical note on Slip dependent Rotor Starters:

Slip dependent Rotors starts works on variable resistance directly proportional
slip intern to load. (Resistance α Slip α Load).

STARTING: While starting Motor requires high starting torque to drive very large inertia
drives like CaneFibrizer, Chopper and Levelers.
• To achieve this high starting torque one has to introduce high resistance in to rotor circuit
of Slip Ring Induction Motor.(SIM). At the time of starting the slip is Unity  (Maximum) hence
our Rotor starter will offer maximum Resistance, achieve the maximum torque.
• As Speed increase towards rated speed,to maintain high motor torque delivered at all speeds,
one has to reduce the rotor resistanceaccordingly, as speed increase    the slip reduces hence
our Resistance will also reduce , so that we could ensure Motor delivers constant maximum
torque at all time of traveling from zero speed to   rated speed.
• Motor acceleration is smooth, step less and jerk less. Since resistance reduction is step less and automatic.
• Automatic Zero-speed sensing and offering high value of resistance at start. Thus avoid motor damages.

RUNNING: Our rotor starter will be out of circuit with the help of inbuilt bypass contactor and during running
motor will be acting as Squirrel cage induction motor(Rotor circuit made star with no external resistance.)

Applications :

This type of loads appear normally

Sugar industry - Pumps, some application required high torque.

Cement industry - Ball mills, wagon un loaders ,cement mills.

Steel industry - Ball mills

Salient Features:

• Slip dependent Resistance provides automatic resistance variation.
• Low Starting current.
• High starting torque.
• Built in bypass contactor.
• No moving parts & stepless cutting of Resistance.
• No maintenance.