L&T Standard Duty Capacitors are metalized polypropylene (MPP) capacitors. These capacitors come with a stacked winding and are impregnated with a non-PCB biodegradable soft resin. These capacitors are self-healing type. The Capacitors come with an over pressure disconnector and finger proof terminals.

Features:
Range available: 1-25 kVAr (Cyl) & 1-50 kVAr (Box)Box & Cylindrical type construction (Resin-filled)MPP technology with Self-Healing & Over-pressure DisconnectorOver current withstand capability – 1.5 InInrush current withstand capability – 200 InNumber of switching operations per year – 5000Low operating loss (0.45 W/kVAr)Application in agricultural pump-sets & small-scale industries
Heavy Duty Capacitors

L&T Heavy Duty Capacitors are metallized polypropylene (MPP) capacitors. The capacitors come with stacked windings. The box capacitors are impregnated with a non-PCB biodegradable resin The cylindrical Capacitors are subjected to an extended period of drying after which the casing is filled with an inert gas to prevent corrosion of the winding elements and inner electrical contacts. Compact design ensures space saving. Heavy Duty capacitors have a long life of 150000 hours.

Features:
Range available: 3-30 kVAr (Cyl) & 5-50 kVAr (Box)Box (Resin-filled) & Cylindrical (Gas-filled) type constructionMPP technology with Self-Healing & Over-pressure DisconnectorOver current withstand capability – 1.8 InInrush current withstand capability – 300 InNumber of switching operations per year – 8000Low operating loss (0.45 W/kVAr)Application in commercial buildings with CFLs & SMPS, garment industries etc.
LTXL: Ultra-Heavy Duty Capacitors

The LTXL, ultra-heavy duty capacitors are advanced APP capacitors. They can withstand heavy load fluctuations, high inrush current and harmonics. They can be used in applications such as welding, steel rolling, etc., with heavy load fluctuations, high harmonic distortion levels (non-linear load >15%) and systems with high dv / dt. The capacitor is designed to operate at ambient temperature up to 70deg C.

Features:
Range available: 5-100 kVArBox type construction (Oil-filled)Advanced APP technology with Internal FuseHigh over current withstand capability – 3 InHigh inrush current withstand capability – 500 InImproved operating life of capacitor – 300000 hoursMore number of switching operations – 20000 operations/yearLower operating losses – 0.35 W/kVArSuitable for harsh environments with heavy load fluctuations and high thermal loading

Features:
Pre-selected optimal number of steps and step sizes, for better step resolution and hunt free capacitor switchingIdeal switchgear selection for reliable short circuit protection, without nuisance trippingRight capacitor-reactor combination selection to prevent harmonic amplification and resonanceOption of capacitor duty contactor or thyristor switch for transient free switchingPanels with better electrical, mechanical and thermal design for longer life of capacitors and other components.Panels are with advanced microcontroller based APFC relay that offers reliable switching operation

Active Harmonic Filters
With L&T’s active harmonic filters, reduce your THD levels to within IEEE/CEA limits. These filters are IGBT-based power converters. This filter injects negative of the harmonic current resulting in practically no harmonic distortion. Phase balancing and power factor correction is also achieved.

Features:
30-600 A Active filter in 3 phase 3 wire/4wireStand-alone & modular unitsResponse time less than 1 ms/li>Easy diagnosis of fault conditions with alarmsEasy configuration & parameter monitoring with LCD touch screen HMI
Reactors – Harmonic Filtering
Detuned harmonic filters are the series combination of a reactor and power capacitor. This filter offers higher impedance for high frequency harmonics. This prevents harmonic resonance and amplification.

Features:
Available as 7% (189 Hz) & 14% (133 Hz) detuned filtersCopper & Aluminium wound reactorsVery low operating losses – 3 to 5 W / kVArHigh linearity – 1.8 times the rated currentLow noiseAuto-thermal cut-off

Features:
Easy calculation of capacitor kVAr rating if existing and target power factor are known with payback calculationSelection of right capacitor-reactor combination (detuned harmonic filter)Generation of bill of materials, covering capacitor selection, switchgear selection, switching device selection with catalogue numbers and MRP of all the items in the panel, that can be exported to excel format.BoM generation up to 1400 kVAr APFC Panels with maximum 14 stepsSwitchgear selection options for main incomer (ACB, MCCB and SDF) and branch protection(MCCB, SDF, HRC Fuse and MCB)Accessories selection for the selected switchgearInstant catalogue access for selected switchgear/capacitorsTechnical articles and presentations – 24 technical articles and technical presentations related to reactive power and harmonic filtering

With the thyristor module, we provide the main component – “The Electronic Switch”- for dynamic power factor correction. The LT-TSM series offers fast electronically controlled, self-observing thyristor switches for capacitive loads up to 50 kVAr, that are capable to switch PFC capacitors within a few milliseconds nearly without a limitation to the number of switchings during the capacitor lifetime. These switching modules are easy to install, have a fast reaction time of 5 msec and come with built-in indications of operations, faults and activation. These thyristor modules are very compact and operate at lower power losses.

Features:
Faster response time (5 ms)High peak inverse voltage (2.2 kV) ensures long operational lifeAutomatic thermal cut-offMonitoring of voltage, phase sequence, faults; display of status via LEDNo system perturbation caused by switching operations (no transients)No auxiliary supply neededMaintenance freeNo noise during switchingCompact design ready for connection and easy installation

Capacitor duty contactor- MO C

L&T’s range of capacitor duty Contactors is specially designed for capacitor switching applications. As capacitor switching is associated with high inrush current, the contactors are provided with damping resistors which limit the value of inrush current to a safe value. The contactors are used in APFC panels for switching power capacitors. Selection of these capacitors depends on the amount of reactive power compensation required.

Features:
Separately terminated de-latching contacts for enhanced operational reliabilityImproved switching performanceDual contact gap for auxiliary contactsSeparate termination of damping resistorsEncapsulated resistor assemblyWide and chatter-free operating bandHigher electrical lifeEnhanced product safety

Features:
Automatic set-upMeasurement Sensitivity – 2.5%Automatic recognition of current flow directionUse in co-generation systems – 4 Quadrant operationFlashing of Alarm code in case of abnormal conditionsOnline display of PF, Voltage, Current, kVAr, capacitor overload and Panel temperatureTwo programmable contacts to be used as alarm and / or fan control except for etaCON 3No-voltage release protection functionCapacitor over-current and panel over-heating protectionAverage weekly power factor measurement (last 7 days)Keypad lock feature