Our Products #2491093

L&Ts 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.
Separately terminated de-latching contacts for enhanced operational reliability
Improved switching performance
Dual contact gap for auxiliary contacts
Separate termination of damping resistors
Encapsulated resistor assembly
Wide and chatter-free operating band
Higher electrical life
Enhanced product safety

Manual operation of motorised changeover switch is also feasible through the manual override feature. The Control supply of motorised changeover will automatically cut off during insertion of manual handle.
Motorised Changeover comes with a AutoManual selector switch. It enables the control supply to motorised changeover switch.
Provision for padlocking in OFF position up to three padlocks is available. Padlocking is possible in both auto and manual mode.
Overall dimensions of motorised and manual changeover switches remain the same, which makes upgradation easy.

Complete touch proof design, with help of terminal shroud, source separator & inter-phase barriers.
Staggered terminals provide clear access to all terminals from the front, ensuring ease of termination.

The increasing use of modern power electronic apparatus (drives, uninterruptible power supplies, etc.) produces nonlinear current and thus loads the network with harmonics. The capacitance of the power capacitor forms a resonant circuit in conjunction with the feeding transformer. Experience shows that the self-resonant frequency of this circuit is typically between 250 and 500 Hz, i.e. in the region of the 5th and 7th harmonics. Typical loads requiring harmonic filtering include 6 pulse drives (AC DC), 3 phase UPS, frequency converters
30-600 A Active filter in 3 phase 3 wire4wire
Stand-alone & modular units
Response time less than 1 ms
Easy diagnosis of fault conditions with alarms
Easy configuration & parameter monitoring with LCD touch screen HMI

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.
Range available: 1-25 kVAr (Cyl) & 1-50 kVAr (Box)
Box & Cylindrical type construction (Resin-filled)
MPP technology with Self-Healing & Over-pressure Disconnector
Over current withstand capability - 1.5 In
Inrush current withstand capability - 200 In
Number of switching operations per year - 5000
Low operating loss (0.45 WkVAr)
Application in agricultural pump-sets & small-scale industries

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.
Faster response time (5 ms)
High peak inverse voltage (2.2 kV) ensures long operational life
Automatic thermal cut-off
Monitoring of voltage, phase sequence, faults; display of status via LED
No system perturbation caused by switching operations (no transients)
No auxiliary supply needed
Maintenance free
No noise during switching
Compact design ready for connection and easy installation

Automatic Power Factor Correction (APFC) panels ensure consistently high power factor under fluctuating load conditions without any manual intervention. In addition, the occurrence of leading power factor is prevented. They continuously sense and monitor the load condition, automatically switch ON and OFF relevant capacitor and protect against any electrical faults in a manner that will ensure safe isolation of the power factor correction equipment.
Pre-selected optimal number of steps and step sizes, for better step resolution and hunt free capacitor switching
Ideal switchgear selection for reliable short circuit protection, without nuisance tripping
Right capacitor-reactor combination selection to prevent harmonic amplification and resonance
Option of capacitor duty contactor or thyristor switch for transient free switching
Panels 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

Over the last five decades, Larsen & Toubro has earned a place among the leading manufacturers of Low Voltage Switchgear in the world, with the scale, sophistication and range to meet global benchmarks.
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L&Ts wide range of power contactors is available in single pole, two pole, three pole and four pole configurations. These configurations and current rating in each configuration ensures that each customer requirement is satisfied. Solutions are available for every application like motor starter, agriculture pumps, genset applications, street lighting and switching to alternate source of supply, DC application. Our all contactors are as per ISIEC 60947-4-1.

L&T has earned a place amongst the leading low voltage switchgear manufacturers of the world. It has the scale, sophistication and range to meet global benchmarks. It has been offering Air Circuit Breakers (ACBs) for the last 45 years and has a rich experience of electrical fields.
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C-line offers you a unique series of changeover Switches combining compactness with high performance & Customer convenience, thus making C-line a state-of-the-art product in changeover technology. The C-line range covers ratings from 63A to 2000A in 6 frame sizes. Changeover Switches are available in open execution, Sheet steel enclosure, fused version (Suitable for DIN type fuse link ) and motorised version.