TESTING - TYPE, DEVELOPMENTAL, CERTIFICATION AND SPECIAL ,  INSPECTION, RESEARCH, TECHNOLOGY DEVELOPMENT, CONDITION MONITORING OF EQUIPMENT,  REMAINING LIFE ASSESSMENT,  FAILURE ANALYSIS,  CONSULATNCY,  KNOWLEDGE UPDATING, INFORMATION SERVICES 

PROFILES OF TECHNOLOGIES DEVELOPED AT ERDA

A- Electrical Equipments/ Products     

B- Smart Materials

C- Testing and Measuring Instruments

D- Others     

A.   Electrical Equipments / Products

1. On Line Fault Sensor for Power Transformer 

Specification :

Range            :   0 – 1999
Accuracy       :    ± 10 %                               
Repeatability  :    ± 2 %                                 
Response Time   :     <2 Minutes

Size   :  Sensor Head    - 50 mm diameter
            Length               - 50 mm
            Control cum display  - (170x100 x 200) mm
            Unit   - mm     

            Weight :            Sensor Head - 0.5 Kg
   
                     Control Cum Display Unit            1.8 Kg

            Display :                      LED (4 digit)
            Input Power       :          220 V AC <100 mA
            Alarm               :          Lower Limit    -    Visual alarm
   
                                            Upper Limit   -    Audio and visual  alarm

 Salient features        

Application :

Power Transformer, Distribution transformer, LOCO Transformer, Rectifier Transformer, Furnace Transformer, Auto Transformer  

Technology Transfer Status: -Closed upto 31-08-2006

2. Upgradation of Short Circuit level of Low tension Air circuit breaker  

Specification

                 Frame 1 & 2 – 32 kg.
                Frame 3 – 50 kg.

 Salient features :    

 Application      

Low Tension Distribution system
Industries

Technology Transfer Status:- Closed  

3. Submersible Pump set with High efficiency

Specification:        

3 ph, Rating : 7.5 kw ; 415 kV/320 V’ Head : 90 m; Discharge : 5 lps; Overall efficiency : 53 %; current : 15.6 A/20 A; Motor efficiency : 82 %; Speed 2880 rpm; size : 150 x 65 mm; 10 stages

Salient features:

The developed 7.5 kw (10hp) submersible pumpset meets the requirements of the IS 8034.

The developed 10hp submersible pumpset operates at lower voltage of 320V (-15%) without drop in the efficiency values

The efficiency values of submersible motors at 415V and 320V are compatible with imported makes motors. The efficiency values are constant from 75% load to 110% load

The efficiency curves are having flat characteristics as stated above. Hence any small change in the operating point will not affect the efficiency.

The present day overall efficiency of the existing 10hp submersible pump set having same duty point of 90m head and 300 lpm, 10 stage is around 46% (As per IS 8034-2002 the overall efficiency is 44.1%). The achieved overall efficiency of upgraded 10 hp submersible pump set is 53%.

Application : Agricultural purposes 

Technology Transfer Status:-Open at present

4. Frequency Trend Meter (FTM)

Specification  :    

Salient features  :

Application  :  

For analyzing system behaviour in case of contingency by continuous automatic measurement of df / dt and recording it on PC, Load Shedding.

Technology Transfer Status    :  Open at Present  

5. DC MCBs for 5 kA, 130 V DC fault level

Specification :     

Salient features :

Application :

Technology Transfer Status :Closed upto 27th February 2008

6. Fault Current Limiter for LT Switchgear & Appliances

Specification :      

Salient features :  

Application :   

Utilities & Manufacturer 

Technology Transfer Status:-Open at Present

7. Remote operated 11 kV load break switch and MCCB  

Specification: 

Salient features:

Application:  

Demand side management of Electrical Power.

Technology Transfer Status:    Closed  

8. Single – Phase Energy Meter (Discrete Component) 

Specification : 

Salient features :    The Required Feature can be added as per requirement as software is developed indigenously.

Application :

Technology Transfer Status: Open at Present

*Other current ranges can be provided as per customer’s requirement

9. Three Phase Energy Meter (Discrete Component)

Specification:

Salient features : The required Feature can be added as per requirement as software is developed indigenously. 

Application :

Technology Transfer Status: Open at Present

* Other current ranges can be provided as per customers requirement.


10. ASIC based single – phase Class – 1 Energy Meter

Specification  :

Salient features  :

Application  :

Technology Transfer Status: Closed upto 31-08-2006

* Other current ranges can be provided as per customer’s requirement.


11. ASIC – based Three phase Four wire Class – 1 Energy Meter

Specification:

Salient features:

Application:

Technology Transfer Status: Closed

* Other current ranges can be provided as per customer’s requirement.

12. Thermosyphon for Power Transformers

Specification :

Salient features :

Application : Transformers 

Technology Transfer Status :Open at Present

13. Micro controller based solid state transient free switching of LT Capacitor

Specification :

Salient features  :

 Application :      

Technology Transfer Status  :  Open at Present


14. Electronic ballast for 70 watt HPSV Lamp

Specification  :

Salient features :

        Parameter                      Reference ballast                      Prototype Electronic Ballast

Application : Industrial and Street lighting (70 Watt HPSV Lamp)

Technology Transfer Status: Open at Present  


14a. Electronic ballast for 150 watt HPSV Lamp

Specification :

Salient features  :           

Parameter                      Reference ballast         Prototype Electronic Ballast

Input voltage                      240 V                              240 V
Input current                      1.807                              0.707
Input Wattage                    165.2 Watt                      176 Watts
Power Factor                      0.381                              0988
Lamp Wattage                   141.6 watts                      156.12 watts
Power loss                        23.8 W                            17.88 W
THD                                  9.9%                                7.8%
Lumen                              13700                              13400

Application:     Industrial and Street lighting (150 Watt HPSV Lamp)

Technology Transfer Status    : Open at Present  


14b. Electronic ballast for TFL    

Specification    :

Salient features  :

    Power Factor :             0.954
    % THD                     26 %
    Crest Factor              1.43
    Wattage         :            42.9 for 40 watt Lamp 

Type tests on Prototype were carried out as per IS : 13021 (Pt. I & II) 

Application  : Industrial and domestic lighting (40 W tubular fluorescent tube) 

Technology Transfer Status    : Open at Present


15. Active Power Filter
 

Specification  :

Salient features   :

Application :  For any type of load for reactive power compensation and harmonic elimination at source side of load.

Technology Transfer Status   : Open at Present


16. Online Condition monitoring of Induction motors through stator current

Specification  :    To detect online the presence of broken bars in 3 ph Squirrel cage induction motors.

Salient features  : 

Application :        Process plants, Utilities 

Technology Transfer Status: Open at Present


17. Single Phase Controller for Agricultural Pumps  

Specification :   Single phasing controller suitable for 100 kVA 11 kV Distribution Transformer
   
                         11000 V/433 V, 5.25 A/133.3 A
 

Salient features:     

Application :

During load shedding utilities can prevent unauthorized use of 3 phase agricultural pumps. Load shedding and lighting load can be maintained. 

Technology Transfer Status: Open at Present  


18. Three phase variable frequency drive for 3-HP motor  

Specification :      

Salient features  :

Application :Speed control of induction motor. 

Technology Transfer Status: Open at Present


19. Solar Pumping System (On 1 - Ζ AC Motor)

 Specification

Salient features :

Application  Water pumping in farms and houses, lighting, heating and other domestic applications. 

Technology Transfer Status: Open at Present

20.   Three Phase Hysteresis Motor  

Specification 

 Salient features:  

Application :   Textiles machines, record players, electric clocks, computer drives.

Technology Transfer Status :Open at Present


21. Cooling fan motor for bus duct

Specification : 15W, 2880 rpm

Salient features:

Application  For Cooling of phase conductors mounted inside the bus duct

Technology Transfer Status  :Open at Present


B.  Smart Materials

22.   Fire Retardant coating compound  

Specification    :    Polymer based Paint

Salient features :   

Application:   Fire retardant coating compound for non FRLS cables.  Applied by brush or spraying.

Technology Transfer Status:    Open at Present


23.  RTV Silicone Coating

Specification :

Room temperature curing, silicone based coating for outdoor applications.  Posses excellent hydrophobic property. 

Salient features:      

 Application :   As an excellent coating for outdoor high voltage insulators. It can be applied by brush or spraying.

 Technology Transfer Status : Open at Present

24. Thermochromic materials for temperature sensing  

Specification:    A)   Reversible Thermochromic material Transition temperature:
                         
(1) 70°C                (2) 50°C
     

                          Colour Change :
                         
(1) Red to Black
                         
(2) Yellow to Orange 

                         B)     Inversible Thermochromic material :
   
                           Transition temperature :

(1) 75°C               (2) 110°C

                               Colour Change :
   
                            (1) Pink to Blue
   
                            (2) Pink to Blue 

Salient features:    

Application : Temperature sensing in specific areas 

Technology Transfer Status: Open at Present
 

25. Heat Shrinkable material  

Specification :

Salient features:

Application : Cable jointing, busbar insulation, sleeving etc.   

Technology Transfer Status   :  Open at Present  
 

26.  Rust Dissolving Corrosion Resistant Coating  

Specification    :-    Coating thickness = 30 mm

 Salient features   :    

Application : Rusted Structural Parts 

Technology Transfer Status    : Open at Present  

27.  Polymeric Coating system for under water equipment and components subjected to erosion  

Specification : 3 coat Polymeric System 

Salient features :

Application :

All underwater equipment and components which are subjected to silt / cavitation erosion, such as hydro turbine runner blades, pump impeller casing etc. 

Technology Transfer Status: Open at Present  

28. Electro less Nickel coating for metals / nonmetals

Specification :10 mm coating thickness 

Salient features :

Application: Any metallic surface which needs better corrosive and wear resistance. 

Technology Transfer Status: Closed upto 2nd January 2008  

29.  Polyolefin based material for use in domestic switches, plugs and sockets

Specification:   

Salient features:   

Meets the requirements of standard for properties tested.  The raw material and other ingredients are easily available in the market.  Processing is easy.  Can be prepared in any colour by adding pigments.

Application  :Domestic switches, Plugs and Sockets.

Technology Transfer Status  - Open at Present


30.  Vinyl Ester Resin from Epoxy Novalac

Specification:  

Salient features:            

Apart from above, the resin when used as a binder for making non-ceramic insulators, showed good cantilever strength.  It is cheap and suitable for insulator application.

Application:

VER can be used as thermosetting resin for many industrial applications and as a binder in resin lean non-ceramic polycrete insulators. 

Technology Transfer Status: Open at Present
 
 

31. Coaltar Epoxy Coating  

 
Specification    :
      

Salient features:

Application :

Can be used for coating steel and concrete water tanks, sewage pipes, underground water retaining and marine structures, wooden poles, crude oil tanks and on any surface where corrosion resistance is required.

Technology Transfer Status: Open at Present

32. Castor oil based capacitor encapsulation material  

Specification : 

Salient features

Application: As an encapsulant for dry type LT capacitor

May be used for other structural  items too with a little or no modification.

Technology Transfer Status: Open at Present  
 

33. Bird Deterrent Compound  

Specification :

Salient features 

Application :Coating can be applied on any solid substrate. 

Technology Transfer Status:    Open at Present  
 

34.   Martensitic Low Alloy Steel Hammer Rings

Specification 

Salient features  :

 Application:

Deployed as impact crushing elements in ring granulators for secondary coal crushing applications. 

Technology Transfer Status: Open at Present


35. Silver Tin Oxide Contact Material  

Specification :