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Ms Mahesh Electrical Instruments
Mumbai, Maharashtra, India
gstGST : 27AAOFM3591Q1ZB Verified Add Review

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Electrical Measuring Instrument

Quality is one aspect on which we can never compromise. And, for this, our personnel work hard and ensure that the entire lot complies with defined quality norms. Placed in Mumbai(India), we share space with the top-notch Suppliers, domestically and offer top-of the line array of in the market.
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Load Banks

  • Input Main Voltage 230/415v Ac.
  • Voltmeter Range 0-300/500v Ac.
  • Ammeter Range 5 - 100a Ac.
  • Load Range 1-25 Kw.
  • Load Type Bulb / Resistance / Capacitor / Induction Load
  • Note 3 Phase Load Bank have the Provision for Connecting It Into 3 Phases Star or Delta Mode.

We are well reckoned as one of the supreme Electrical Load Banks Manufacturers and Exporters from India. ME Load Banks are single phase and three phase variable Lamp or resistor or capacitor or Induction load housed in metal case as shown in the diagram. Our Portable Load Banks are provided with castor wheels (except Induction Load) for easy handling. Ammeters and Voltmeters are provided on the front panel to indicate the current and voltage respectively. Also heavy-duty Porcelain switches with bakelite top and inner brass contact or Anchor Switches or MCBs (As per the load capacity) are provided for safety. For Mains ON, MCB is provided.

The Load Banks are used to simulate load conditions to test Voltmeters, Ammeters and Wattmeters. Load can be simulated by using the load switches provided on the bench. Total load simulated is sum of the loads of all 'ON' switches.

The pictures shown are a three in one unit comprises of Capacitor, Induction and Resistor loads (in order) in single Load Bank.

Load Type:-
In resistance Load Bank Resistor wire as per required capacity is wound on the porcelain tube; in the same manner Bulbs are provided for bulb load bank (LAMP Bank) and Capacitor are provided for Capacitance load bank. Induction Load Bank is smoothly variable, core balance type inductive load. In this type, the load is increased or decreased by increasing or decreasing the air gap between the coils. In this Rotating knob is provided on the top of the panel for operating the air gap.

Operating:-
Before switching on the load bank, put all load switches in 'OFF' position. In induction load bank, keep the Coils in closed position, Switch on the Load Bank. Switch on the load switches one by one till the required load is simulated. For Induction Load Bank rotate the knob to increase the air gap and current will start increasing smoothly. Load Voltage & Load Current will be indicated on the Voltmeter & Ammeter respectively on the panel.

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Phase Sequence Indicator

  • Application Industrial
  • Display Type Analogue
  • Weight 800 Gms (approximately)
  • Voltage Range 50 to 500 Volts Ac
  • Frequency Range 25 to 60 Hertz
  • Connection Leads 1-meter Long Red, Yellow and Blue Test Leads.
  • Size 96 X 96 X 60mm, Portable in Abs Body.
  • Accessories Rexine Carrying Covers.

We stand in the midst of ecstatic Phase Indicator Manufacturers and exporters, based in India. Our Phase Sequence Indicator is a portable and sturdy instrument having a rotating disc to indicate the sequence of the phases of 3 phase power supply. Clockwise rotation of the rotating disk of the PSI indicates proper sequence. Anti clock wise rotation indicates improper sequence.

Electronic Phase Sequence Indicator provided by us is useful for checking the sequence of phases when the same are to be connected in proper sequence watt meters, power factor meters, motor and similar applications.

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DC Motors

  • Weight 40-50kg
  • Voltage 220V
  • Power 1-3kw
  • Driven Type Electric
  • Speed 1000-2000rpm
  • Durability Long Life
  • Resistivity Rust Resistant

An ample assortment of high quality Dc Electric Motors is provided by us. We are well reckoned as one of the major Dc Motors Manufacturers and Exporters based in India.

Our Dc Gear Motors are manufactured from the finest quality raw materials to add durability and efficiency. Some of the salient features of our Dc Electric Motors are listed below:

  • Low noise operation
  • Minimize EMI
  • Maintenance free
  • Compact size and rugged structure
  • High power density
  • Low consumption of electricity
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Cell Tester

  • Weight 200 gms. (Approximately)
  • Application Industrial
  • Range 3 0 3 Volts (6-0-6 and 30-0-30volts, Available Optional, Upon Request)
  • Accuracy ± 2.5% of F.S.D.
  • Sensitivity 1000 Ohms per volt.
  • Standards Confirms to P&t Specifications I.t.d. No. S/xv-100c.
  • Durability - Long Life
  • Resistivity Rust Resistant

We stand in the midst of supreme cell tester manufacturers, based in India. Our high quality Cell Tester is highly useful for checking battery voltage in automobiles, laboratories and other applications. Center zero dial of 65mm diameter provide voltage reading with polarity indication. A terminal spike fitted on the top at the Solar Cell Tester, can be directly connected to one of the battery terminals. 150mm long insulated prod with flexible test lead, can be connected to the other battery terminal.

Meter :
Permanent magnet moving coil type of DC volt meter with center zero scales of 60 divisions and external zero adjuster. Housed in black ABS moulded cabinet.

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DC Shunts

  • Material Metal
  • Application Industrial
  • Accuracy Class 1
  • Durability Long Life
  • Surface Finishing Polished
  • Resistivity Rust Resistant

We stand in the midst of leading Direct Current Shunts Manufacturers, based in India. ME Dc Shunts are available for current ratings from 5-10000 Amps and mill volt drops of 75 milli volts. (Other voltage drops can be provided at request) The Shunts confirms to IS Standards 1248

ME Dc Ammeter Shunts consist of Mangenin rods soldered or silver brazed to brass end blocks. The shunts are artificially aged after manufacture and then tested on full load. Shunts are supplied with leads of 0.025 ohms. The lead resistance is taken into account while calibrating the shunt.

Overload: Shunts are capable of withstanding temperatures upto 120 C without any permanent alterations in physical or electrical properties. Overloads and faults which results in temperatures of this magnitude can be safely handled

All 75 milli volts drop shunts of class 1, withstand the following overload

Requirements :

  • 2 X rated current for 3 minutes.
  • 4 X rated current for 30 seconds.
  • 10 X rated current for 5 seconds.


Temperature Co - Effecient : 0.002% per degree centigrade, above ambient temperature in still air, with free ventilation. Temperature not exceeding 120°C at the center and 90°C at the ends.


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Elecrical Motor

DC Motors
Micro DC Motors
AC Motors
Synchronous Motors
Battery operated DC Motors (EV & Hybrid EV Motors)
Ge* Geared Motors
Wound Field DC Motors (Sepex)
Dynamometers / DC - Tacho Generators




Drives :-


DC Drives.
Chopper Controllers.
Control Panels.
UPS Systems.
Electronic Generators- Inverters.
Semi-Traction Motors.
Diesel Generators.
Equipments for Educational Institutes, Engineering colleges IIT's & ITI's.
Educational type DC Motors.
Cut section AC / DC Motors.
Slipring Induction Motors.
Alternators & DC Generators.
AC to DC M-G set.
DC to AC M-G set.
Repulsion Motors.
Synchronous machine Motor- Alternator sets.
Identical DC Shunt Machines set for Hopkinson test.
Identical DC Series Machines set for Field test.
DC Starters.
Field regulators for DC Shunt/Compound motors & generators.
DC Variable speed drive system with Dimmer control and DC Variable speed
drive with Thyristor control.
DC Machine trainer set with Dynamo.
DC Machine trainer set with Eddy Brake.


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Dc Thyristor Drive

Input Supply - 230V + 10% AC 50Hz.










Outputs 220V @ 1A for field
0 to 220V for Armature
@5A for 1HP
@8A for 2HP
@12A for 3HP
@20A for 5HP


Power On/OFF switch for all and Start/Stop push-buttons for 3 & 5 HP


Speed control by closed loop voltage feedback system


Speed Adjustment by means of single turn Potentiometer with dial on Panel


Indicators Neon/LED type for Power ON, Motor ON and Overload Trip


Meters Output DC Voltage and DC Current, size-72 X 72

Protections -
Input Glass fuse for 1 & 2HP and MCB for 3 & 5HP
Glass fuse for field and control,
Electronic Field Fail Relay, Electronic Overload,
Current Limit, Snubber for Diodes and Thyristors,
Electronic Soft-Start to avoid inrush current
Surge suppressor network

Cabinet M.S. fabricated and duly powder coated, wall mounting type

Size -320mm x 225mmW x 175mmD for 1 & 2 HP
400mm x 350mmW x 175mmD for 3 & 5 HP


NOTE : DC DRIVE WITH DIMMERSTAT CAN BE PROVIDEDe

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D. C. Shunt

















ME shunts are available for current ratings from 5-10000 Amps and mill volt drops of 75 milli volts. (Other voltage drops can be provided at request) The Shunts confirms to IS Standards 1248


ME Shunts consists of Mangenin rods soldered or silver brazed to brass end blocks. The shunts are artificially aged after manufacture and then tested on full load. Shunts are supplied with leads of 0.025 ohms. The lead resistance is taken into account while calibrating the shunt.
ACCURACY : Class 1

OVERLOAD :Shunts are capable of withstanding temperatures upto 120 C without any permanent alterations in physical or electrical properties. Overloads and faults which results in temperatures of this magnitude can be safely handled
All 75 milli volts drop shunts of class 1, withstand the following overload


REQUIREMENTS :
2 X rated current for 3 minutes.
4 X rated current for 30 seconds.10 X rated current for 5 seconds.
TEMPERATURE CO-EFFECIENT :0.002% Per degree centigrade, above ambient temperature in still air, with free ventilation. Temperature not exceeding 120C at the center and 90C at the ends.
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Battery Charger

















SPECIFICATION :24 Volts DC, 10 Amps. DC


INPUT VOLTAGE :230 Volts AC (Mains cord provided for input supply)


OUTPUT VOLTAGE :24 Volts DC at 10Amps Selectable Steps at 6/12/18/24 Volts


CAPACITY :10 Amps DC (Maximum.)


COMPONENTS :Main Transformer, Rectifier Stack, Ammeter, Voltmeter, Pilot Lamp, AC Fuse, On/OFF Switch, Selector Switch, Output Terminals.


OPTIONAL :VARIAC



GENERAL :
The Battery Charger is designed for working on single phase 200/250 Volts AC and capable of charging 1/2 Nos 12 Volts battery at 10 Amps Maximum at an ambient temperature of 45oC.



OPERATIONS AND INSTALLATIONS :
Connect 230 Volts supply, Pilot Lamp will Indicate mains as ON. Before switching on the AC supply, connect the 12Volts battery with correct polarity. Ammeter and Voltmeter provided will indicate the current and voltage respectively


Trickle/Boost switch is provided. Slow Charging can be done by selecting the trickle position. On the boost side, variation in the charging current could be made according to the conditions of the battery which please note


Output terminals are provided with red positive and black negative. And while connecting to the battery correct polarity should be connected.


The unit is made for trouble free operations.


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Wire-Wound Rheostat

Core PorcelainTube, Non-Magnetic Non-Inductive Tubular Type.

2)Contact Block :Squire piece made of material is fitted with contact sliders in the guide squir rod. Bright chrome plated Phosphor bronze strip which makes immediate contact with the guide rod. A backlite knob is fitted with squire piece for sliding up and down.

3)Guide Rod :Solid draven brass rod bright chrome plated squire.

4)Contact Material :Multiple brushes of Phosphors bronze strip rolled strip give springy action to the contacts.

Winding Wires :Eureka wire for low value and nichrom wire 80/20 grade for higher values.

Temperature rise :200oC above ambient temperature High Voltage Test : 2 KV A.C. for 1 minute between end support and any one of 3 wires terminals of the wire.

End supports :Aluminium brackets painted.

Terminals :Bright Chrome plated brass nuts and screws one at each end of Leaneer Type Wire-Wound Resistor and the third one at both the side of guide rod.

All Electrical Connectors are made from chrome plated brass material.

Rotary Sliding Rheostate, Double tube and Multiple Tubes, Non-Standard values, wattage on specific request, Available from 100 Ma to 100 Amps 0.3 ohms to 25 Kohms.

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Load Bank

INTRODUCTION :ME Load Bank is a single phase and three phase variable Lamp or resistor or capacitor or Induction load housed in metal case as shown in the diagram. It is provided with castor wheels (except Induction Load) for easy handling. Ammeters and Voltmeters are provided on the front panel to indicate the current and voltage respectively. Also heavy-duty Porcelain switches with bakelite top and inner brass contact or Anchor Switches or MCBs (As per the load capacity) are provided for safety. For Mains ON, MCB is provided.















The Load Banks are used to simulate load conditions to test Voltmeters, Ammeters and Wattmeters. Load can be simulated by using the load switches provided on the bench. Total load simulated is sum of the loads of all 'ON' switches.

The pictures shown is a three in one unit comprises of Capacitor, Induction and Resistor loads (in order) in single Load Bank.

LOAD TYPE :-In resistance Load Bank Resistor wire as per required capacity is wound on the porcelain tube; in the same manner Bulbs are provided for bulb load bank (LAMP Bank) and Capacitor are provided for Capacitance load bank. Induction Load Bank is smoothly variable, core balance type inductive load. In this type, the load is increased or decreased by increasing or decreasing the air gap between the coils. In this Rotating knob is provided on the top of the panel for operating the air gap.

OPERATING :-Before switching on the load bank, put all load switches in 'OFF' position. In induction load bank, keep the Coils in closed position, Switch on the Load Bank. Switch on the load switches one by one till the required load is simulated. For Induction Load Bank rotate the knob to increase the air gap and current will start increasing smoothly. Load Voltage & Load Current will be indicated on the Voltmeter & Ammeter respectively on the panel.



SPECIFICATION :


INPUT MAIN VOLTAGE : 230/415V AC.
VOLTMETER RANGE : 0-300/500V AC.
AMMETER RANGE : 5 - 100A AC.
LOAD RANGE : 1-25 KW.
LOAD TYPE : Bulb / Resistance / Capacitor / Induction Load



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Contact Us

  • Mr. Vidyadhar Minakshi Madhukar Bane (M/s Mahesh Electrical Instruments)
  • 212-A.Bhagtani Enclave, Near Anandraj Industrial Estate, Opp. Lbs Marg Sonapur Lane, Bhandup - West, Mumbai, Maharashtra - 400078
  • https://www.meinstrument.com
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  • Call 08069247352 Ext. 282