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Sunday May 26

Infrastructure

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(Note: List of routine and General Machines and Equipments,Tools,Tackles, Small Testing Equipments etc. are not included).

Recent Expansion at our Yewat Work

Land: Additional 50000 sq mts of land.

Shed: Size 25 mtrs working span x 130 mtrs length.
Height of apex point --- 20.5 mtrs having EOT cranes of 2 x 100 Tons, 1 x 25 Tons, 2 x 5 Tons and wall-mounted travelling.
Jib cranes 2 x 2T. 

Annexe: Width 9 mtrs (4+2), length 130 mtrs divided into following sections: 
Impulse Test Lab. 
Routine Test Lab. 
Stores. 
Works offices. 

Total additional covered area of 5000 sq mt is newly constructed additional to the existing equivalent.

Major Equipments

Specialized equipments added and planned as under. 
Vapour Phase Drying equipments. 
Self-tilting Core Building Fixture. 
Hydraulic Coil Presses. 
New Test Lab.  

HANDLING

  • 75 Ton Electric Crane.
  • 40 Ton Electric Crane.
  • Mobile Pick and Carry type 8 Ton & 12 Ton Cranes.
  • Broad gauge rail line through out length of shed (105 meters) with crossing at every 5 meter along the span of shed.
  • Trolleys having bi-directional wheels . Large transformers are mounted on these and shifted along the rails.
  • 5 Ton EOT Crane
  • 100 Ton EOT Crane ordered out
  • Vapour Phase Drying Oven Ordered out

SHED 

  • First class shed of 50,000 sq. ft.
  • First class shed of 75,000 sq ft shed under construction

LAND

  • Plot of 6 ½ acres N. A. land on Pune Hyderabad Highway (NH –9) having
  • 500 ft frontage .
  • Plot of 8 acres opposite to existing facility has been procured
  • Plot of 6 acres land adjacent to existing facility to be procured

DRYOUT

Vacuum drying oven –

ze 6.5 m x 3.5 m x 3.8 mtr
Type
Front loading type served by a trolley
& rail line .
Loading 90 KW
Air circulation Centrifugal Blower
Vacuum Roots, rotary combination vacuum system as
detailed in Annexure- I.
Infrared loose heaters 150 KW
Resistance air heaters ( loose) 150 KW

Power Supply

22KV, 200KVA HT connection , Standby 125 KVA Gense

MAJOR TESTING EQUIPMENTS

  • AC HV Test set 40 KV 250 KVA .
  • Auxiliary transformers 22/.433KV, 33/.433KV, 11/.433 KV
  • Metering CTs & PTs of 11KV , 22 KV and 33 KV Class
  • 90 KVA motor generator (100 cycles) set with capacitors for conducting induced high voltage test.
  • 3000 KVAR, 415 Volts Capacitors Banks.
  • Other general equipments like ratio meter, voltmeters, ammeters, tong testers, wattmeters, bridges, CTs & PTs in quantity.
  • 400KV AC High Voltage Test Set.
  • Three phase Dimmers 75 A ,175 A , 400 A , 600 Amps.
  • Karl Flescher PPM Measurement Equipment ( Digital )
  • Acidity Test Kit
  • Dielectric Breakdown Testers 0-100 KV - 4 Sets.

WINDING

  • Twelve numbers of Horizontal winding machines of various capacities.

TRANSFORMER OIL PROCESSING EQUIPMENTS

  • High Vacuum Filter Machines : As detailed in Annexure – II.
  • Oil Tanks : 4 KL (4 Nos.), 6 KL, 10 KL (3 Nos), 20 KL (3 Nos.)

FABRICATION

  • Full fledged fabrication shop for in house fabrication of transformer

Annexure- I
HIGH VACUUM FILTER MACHINES

 


Plant No. 1

Plant No.2

Plant No. 3

Plant No.4

Type

Two stage high vacuum

Two stage high vacuum

Two stage high vacuum

One stage high vacuum

Capacity
Make

6,000 Litres/hour
John Flowel Bangalore

6,000Litres/hour Crompton Greaves

10,000Litres/hour
Self made.

4,500 Litres/hour
Self made

Filters

Cartridge type coarse
and fine.
(1 micron/.5 micron)*

Cartridge type coarse and fine. (1 micron/.5 micron)*

Cartridge type coarse and fine. (1 micron/.5micron) *

Cartridge type coarse and fine.(1 micron/.5 micron)*

Pump
Output

One number on inlet.
One number on outlet

One number on inlet.
One number on
outlet + 1 spare

One number on inlet.
One Number on outlet

One number on inlet.
One number on outlet

Vacuum pump

1st stage-1x120 Cum/hr
UNO 120 A Balzer (Rotary)

1st stage - 1500 Lit/min DCULVAC Japan make (Rotary)

1st stage 1x120 Cum/hr. UNO 120 Balzer (Rotary)

Single stage 90 Cum/hr. Shinko-Japan (Rotary)
SR-1500B

 

2nd stage-1x 600 cum / hr
ULVAC make JAPAN

2nd stage-1x 300cum/hr
ULVAC make JAPAN

2nd stage-1x1200 cum/hr
ULVAC make JAPAN

 

Thermostats

2 Nos.

2 Nos.

4 Nos.

3 Nos.

Heater

50KW+50KW+50KW

44KW+44KW+44KW

50KW+50KW+50KW+50KW

25KW+25KW+25KW

Vacuum level

< 1 millibar

< 1 millibar

< 1 millibar

< 1 millibar

Ionic Reaction
Column

Not available.

3columns

3columns

3columns

Online Gas & moisture content measuring instrument

Available.

Available.

 

Available.

Not available.

Annexure- II

Vacuum Pumping Unit :-

Skid mounted system ( with lifting lugs) consisting of Mechanical Booster pump with By-pass line provided with by pass valve. Chilled trap with drain valve , catch pot with level indicator , Air admittance valve and drain valve, oil sealed rotary vacuum pump with Non return Valve and E.O. Air admittance valve . Electrical control panel is provided for controlling all electrical supply to the equipments in Vacuum control unit with two gauge heads and one set point is provided to start Mechanical Booster Pump automatically.

Mechanical Booster Vacuum Pump :-

Make Hick Hargreaves & Co. U. K.
Air cooled type Model MB –52
Capacity 1730 Cu.m/ hr.
lectric Motor 10 H.P., 3 Phase ,TEFC , 50 HZ , 2880 RPM
Booster Pump Oil Requirement 2.75 Litres.

Oil Sealed Rotary Vacuum Pump :-

Model
JEBIVAK V-22
CapacityJEBIVAK V-22.
Stage
Two
Ultimate Vacuum0.005 torr with Gas ballast closed
0.05 torr with Gas ballast open
Electric Motor10 H.P. , 3 Ph., TEFC,1440 RPM
Rotary Pump Oil Requirement25 Litres
Cooling Water Requirement10 Litre/min. at 0.7 to 1 kg/cm2 pressure.
 

Power Projects

Over 4 decades, Mahati Electrics has emerged as a major contracting company undertaking works at Hydro,Thermal .....

Transformers

 Mahati has a strong foothold amongst ferro alloys and steel industries in India and Africa.

Switch Yards

Experienced and skilled workforce at Mahati
Electrics has successfully placed Mahati group as a leading contractor.....

Power Transformers

Transformer division of Mahati Electrics began operation over 40 years ago.......

Mahati Electrics

An ISO Certified Power Sector Company since 1967.

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