Lakeshore Electricals Pvt. Ltd. Chakan, Pune, Maharashtra

ADVANTAGES OF VPI TRANSFORMERS Enhanced Safety Minimal maintenance Near Load Center or even near to load. Reduced Transmission losses. Reduced cost of cabling More Reliable Enhanced overloading capacity Resistance to humidity Hazard free to the environment Negligible smoke generation Can be fitted outdoor in IP 45 enclosure Suitable for as low as -25°C ambient temperature SPECIFICATIONS Type: Vacuum Pressure Impregnated Transformer Capacities: From 5 KVA to 1000 KVA Voltage Class: Up to 6.6 KV Phases: Three Phase & Single Phase Frequency: 50 Hz 60 Hz. Typical Voltage Configurations in Three Phase: (Other Voltage configurations available as per customer requirements) 6.6 V 433 V; 6.6 V 415 V; 6.6 V 230 V; 433 V 6.6 V; 433 V 433 V; 433 V 415 V; 433 230 V; 415 V 6.6 V ; 415 V 415 V; 415 V 230 V. Insulation: Class F Class H Winding Material: Copper Magnetic Core: Prime Grade Virgin C.R.G.O FEATURES Service Designed for long life and trouble free performance Losses Designed for lower losses and greater efficiencies Test Standards Designed for IS 2026 11171 & I.E.C 60076. Value Designed for cost effectiveness and high reliability Installation Designed for installation closer to load Safety Designed for protection against chemical spills and harsh environmental conditions.

We are Offering Triple Shielded Ultra Isolation Transformers, APPLICATIONS Typically used for CNC VMC Medical equipment, Wave Soldering applications, Compressors etc. Used for sensitive Telecommunication equipment Railways as protection equipment for Battery Chargers Used for isolating mains when connected to sensitive equipment (with electronic controls) Used for stepping up or stepping down voltages for compatibility to equipment purchased from overseas.

he test system is different whether we have to carry out the temperature rise test on one transformer liquid filled ( Oil or Silicone Liquid ) or dry type. In fact in the first case we use the short-circuit method while in the second case we use the back-to-back method. Primary current injection test sets have two main applications. The first of these is the testing of complete reply protection systems comprising the isolated High Voltage Conductor, the Current Transformer, the Protection Relay and the circuit Breaker. Because of the inconvenience of breaking into the feeder circuit on the primary side of the Current Transformer, Primary Current Injection is normally applied at the time of commissioning protection equipment or after major repair. As many of the protection systems requiring testing have a critical performance in relation to time, the primary current injection test sets incorporate a time counter facility. The second role of the primary current injection test is in the testing of the Current Transformer in a protection System. Again, this test is normally applied prior to commissioning equipment or after repair. In addition to these protection system applications, Current Injunction Test Sets are ideal for any application where it is necessary to supply a low resistance load with a controlled and measured heavy current. SPECIFICATIONS Type Single Phase and Three Phase continuous duty. Both A.C & D.C type. Control Panel provided for conducting tests along with Variac assemblies. Single phase controls for Three phase units for un-balance compensation. Capacities From 500 Amps to 40,000 Amps Secondary Voltage Class From 5 Volts to 60 Volts Primary A.C Voltage Class Either 230 V or 415 V. Phases Two Phase & Single Phase Frequency 50 Hz 60 Hz. Typical Unit Configurations (Other Current Voltage configurations available as per customer requirements) 500 Amps 10 V, 500 Amps 20 V, 630 Amps 10 V, 1000 Amps 10 V, 5000 Amps 30 Volts, 8000 Amps 12 V, 10,000 Amps 16 V, 20,000 Amps 10 V, 25,000 Amps 10 V, 40,000 Amps 10 V. Insulation Class F up to 1000 Amps , Class A for higher rated units. Winding Material Copper Magnetic Core Prime Grade Virgin C.R.G.O Insulation Graded Thermal Insulation for High current applications. FEATURES Service Designed for long life and trouble free performance Losses Designed for lower losses and greater efficiencies Test Standards Designed for IS 2026 11171 & I.E.C 60076. Value Designed for cost effectiveness and high reliability Installation Designed for installation closer to load. Safety Designed with maximum safety considerations and adequate room for ventilation. Reliability Increased Reliability using premium grade raw materials. Transformer Type Single Phase or Three Phase. Variac (Auto-Variable Transformer) Voltage Variation Single Phase Variac assemblies supplied with the Temperature rise tester for current variation from 0 to Maximum test current. Control Panel Control Panel provided with safety interlocks, Buzzer, Ammeter, Voltmeter and Controls for carrying out the test.

SPECIFICATIONS Type Shielded Isolation Transformer Capacities From 5 KVA to 1000 KVA Voltage Class Up to 6.6 KV Phases Three Phase & Single Phase Frequency 50 Hz 60 Hz. Typical Voltage Configurations in Three Phase (Other Voltage configurations available as per customer requirements) 6.6 V 433 V; 6.6 V 415 V; 6.6 V 230 V; 433 V 6.6 V; 433 V 433 V; 433 V 415 V; 433 230 V; 415 V 6.6 V ; 415 V 415 V; 415 V 230 V. Insulation Class F Class H Winding Material Copper Magnetic Core Prime Grade Virgin C.R.G.O Shielding Material 0.2 mm Electrolytic copper foil Insulation Increased level of insulation using Vacuum Pressure Impregnation. SPECIAL FEATURES Service Designed for long life and trouble free performance Losses Designed for lower losses and greater efficiencies Test Standards Designed for IS 2026 11171 & I.E.C 60076. Value Designed for cost effectiveness and high reliability Installation Designed for installation closer to load Safety Designed for protection against harsh environmental conditions. Isolation Electrostatic Isolation between Primary & Secondary to suppress Electrical noises.

OIL COOLED VOLTAGE STABILIZERS : Our Oil Cooled Servo Stabilizers are designed keeping in mind the end user requirements and user friendliness. Oil is used as the cooling method in the Oil Cooled Stabilizers. We ensure that our Components are designed using the best quality components, to provice or clients with efficient functioning standards. SPECIFICATIONS Capacities From 5 KVA to 2000 KVA in Three Phase Capacities: From 5 KVA to 100 KVA in Single Phase Controller Type Micro-Controller based Input Voltage Range: Wide Range 280 V - 500 V Input Voltage Range: Wide Range 300 V – 460 V Input Voltage Range: Mid Range 340 V – 480 V Input Voltage Range: Narrow Range 360 V – 460 V Output Voltage 415 V 400 V with + - 1% accuracy. SPECIAL FEATURES Response Time 10 Milli Seconds Rate of correction 60 V sec for lower capacity Stabilizers & 30 V sec for higher capacity Stabilizers. Suitable for Balanced Load, Balanced Voltage Unbalanced Load, Unbalanced Voltage Protection Under Voltage & Over Voltage with Tripping and visual alarm. Protection Overload with Tripping through Micro-controller and visual alarm. Single Phase prevention. Display Digital Metering Voltmeter & Ammeter with suitable CTs Voltage Readout in each Phase Load current Readout in each Phase Switchgear MCCB MCB and Contactor Connection To Terminals through Cable glands from bottom Lifting Arrangement Lifting lugs Lifting Hooks Portability Unidirectional wheels Bi-directional wheels Enclosure Protection Level (Air cooled) IP 23 Enclosure Color (Air cooled) RAL 7035 Enclosure Color (Oil cooled) RAL 631 FEATURES Service Designed for long life and trouble free performance Losses Designed for lower losses and greater efficiencies Test Standards Designed for IS 9815. Value Designed for cost effectiveness and high reliability

Our Oil Filled Transformers are manufactured in accordance with the most demanding industry and international standards using premium quality CRGO or CRNGO ( if needed ) Steel Core. Transformers can be used for indoor or outdoor applications and can be provided with off-load tap changers. ADVANTAGES Can be used Outdoors Low power loss and low noise Designed for trouble free performance Designed to withstand Electrical Impulses & Thermal Stresses SPECIFICATIONS Type Oil Cooled Transformer Capacities From 5 KVA to 1000 KVA Voltage Class Up to 6.6 KV Phases Three Phase & Single Phase Frequency 50 Hz / 60 Hz. Typical Voltage Configurations in Three Phase: (Other Voltage configurations available as per customer requirements) 6.6 V / 433 V; 6.6 V / 415 V; 6.6 V / 230 V; 433 V / 6.6 V; 433 V / 433 V; 433 V / 415 V; 433 / 230 V; 415 V / 6.6 V ; 415 V / 415 V; 415 V / 230 V. Insulation Class A Winding Material Copper Magnetic Core Prime Grade Virgin C.R.G.O FEATURES Service Designed for long life and trouble free performance Losses Designed for lower losses and greater efficiencies Test Standards Designed for IS 2026 / 11171 & I.E.C 60076. Value Designed for cost effectiveness and high reliability

ADVANTAGES Higher Efficiency Less than 5 % ripple Higher Switching frequency Designed for 100 % continuous duty cycle Compact design for space saving Lesser Power Consumption Negligible Maintenance SPECIFICATIONS Type: Rectifier Transformer with Diode Bridge & RC network. Capacities: From 5 KW to 1000 KW Primary A.C Voltage Class: Up to 440 V A.C D.C Voltage Class: Up to 120 V D.C D.C Current Rating: From 100 Amps to 6000 Amps Phases: Three Phase & Single Phase Frequency: 50 Hz / 60 Hz. Typical D.C Voltage Configurations : (Other Voltage configurations available as per customer requirements) 8 V, 12 V, 16 V, 20 V, 24 V, 30 V, 36 V, 42 V, 48 V, 54 V, 62 V, 70 V, 80 V, 90 V, 100 V, 110 V, 120 V D.C Insulation: Class A / Class F / Class H Winding Material: Copper Magnetic Core: Prime Grade Virgin C.R.G.O Insulation Increased level of insulation using Resin Casting / Vacuum Pressure Impregnation for Dry Type Transformers and Insulating Oil for the entire assembly. FEATURES Service Designed for long life and trouble free performance Losses Designed for lower losses and greater efficiencies Test Standards Designed for IS 2026 / 11171 & I.E.C 60076. Value Designed for cost effectiveness and high reliability Installation Designed for installation closer to load Safety Designed for protection against harsh electroplating environmental conditions. Very Low leakage current. Reliability Increased Reliability using Either Hi-Rect make or NSL make diodes with Aluminum Heat sinks. Transformer Type F.L.R.T (Five Limb Rectifier Transformer) for better quality Electroplating. Hexa-phase secondary connected to Silicon Diodes. Variac (Auto-Variable Transformer) / Voltage Variation Three Phase Variac assemblies supplied with the Rectifier assembly for Voltage & Current variation. AC Voltage Fluctuation The Unit is designed for Voltage fluctuation from 360 V to 440 V. D.C Voltage Quality (Ripple) Low Ripple content (≤5%)

TECHNICAL SPECIFICATIONS Type Cast Resin Transformer Capacities: From 5 KVA to 1000 KVA Voltage Class: Up to 6.6 KV Phases: Three Phase & Single Phase Frequency: 50 Hz / 60 Hz. Typical Voltage Configurations in Three Phase: (Other Voltage configurations available as per customer requirements) 6.6 V / 433 V; 6.6 V / 415 V; 6.6 V / 230 V; 433 V / 6.6 V; 433 V / 433 V; 433 V / 415 V; 433 / 230 V; 415 V / 6.6 V ; 415 V / 415 V; 415 V / 230 V. Insulation: Class F / Class H Winding Material: Copper Magnetic Core: Prime Grade Virgin C.R.G.O FEATURES Service Designed for long life and trouble free performance Losses Designed for lower losses and greater efficiencies Test Standards Designed for IS 2026 / 11171 & I.E.C 60076. Value Designed for cost effectiveness and high reliability Installation Designed for installation closer to load Safety Designed for averting fire and protected against chemical spills and harsh environmental conditions.

Advantages : Continuous, Step less and Break Less Voltage variation Negligible waveform & Power factor distortion Short Time Overload Capacity Renote operation possible SPECIFICATIONS Load Capacities 28 amps to 600 Amps in Single • and 28 Amps to 1000 Amps in Three • 28 Amps, 40 Amps, 60 Amps, 100 Amps, 200 Amps, 400 Amps, 600 Amps, 800 Amps, 1000 Amps ) Phase Single • and Three • Toroidal Coils with CRGO Steel Sheet Core Frequency 50 60 Hz. Voltage Variation Capability 0 - 270 V A.C in Single • and 0 - 470 in Three • Cooling Method AN for 28 Amps in Single• and Three • Oil Cooled for 40 Amps to 600 Amps in Single • Oil Cooled for 40 Amps to 1000 Amps in Three • Drive Mechanism Hand Driven with Knob Motor Operated with Step Syncronised Motor Compliance to test Standards IS 5142. Oil Confirming to IS 335 Copper Conductors Compliant to IS 13730 - 34 BASIC FEATURES Open Type for Panel Mounting Portable Type for Table Mounting M.S. Tank with Oil Immersed and Pressed Steel Radiators. Double varnished Toroidal Coils. Voltage Indicator Dial. Knob or Wheel for Voltage Variation Connector Plate or Bus Bars in cable box. High Quality Carbon Brushes.