Design, manufacture and of compact substation of 11kv415 volts, equipped with 2000 kva cast resin transformer, 4 way 11kv ring main unit. Answer raju kumar singh let suppose u have taken 1500 kva transformer of 11kv to 415 v u wanna be the current calculation for the both ht side and lt side. Mar 15, 2016 lt panel is an electrical distribution board that receives power from generator or transformer and distributes the same to various electronic devices and distribution boards. Ht means high tension or high voltage, where in a small current is used with a very high voltagefor creating plasma. It can call the generator set if the amf further connected to the main switch board received power from the other source normally from the local authority which equipped with auto transfer switch. Ht panel is like lt panel except that it is used for high tension cables. Introduction the procedures stated in this document cover the activities in preliminary tests and inspections, functional performance tests and the commissioning of newly completed installations and existing ones after major alteration.
Lt panel manufacturers, low tension panel suppliers and exporters. Copy of original valid electrical contractor license. Electrical panel design software industrial power control 3 phase, 5060 hz electrical system, lt electrical panel design software lt, 3 phase electrical panel and switch board designing is no more a tedious and time consuming job now. Ht panels, bus trunkings rising mains and other related items to be supplied, the inspection as may be necessary before dispatch, delivery at site, installations, testing, commissioning, putting into operation and handing over in working condition of the equipment for substations for working voltage of 1433 volts. Now we have to discuss the main topic thats how to calculate the cable size for motors. On lt side of transformer, lt main feeder pillar shall be provided. Either vcb or ring main circuit shall be used to control transformers. Commissioning of ht electrical system photo credit.
Guidelines for substation and power distribution systems of. Insulating mats for electrical purpose, is15652 approved mat. Ensure that the connectors are properly used and installed in accordance with manufacturers specifications. Guideline to design electrical network for building small area. It is normally connected to the generator set to control the generator set function. Sop for operation and maintenance of low tension lt panels. Indoor or outdoor portable protection element for site engineers working on live equipment. Lt and ht panels lt panel 100% export oriented unit from. To lay down the procedure for operation of high tension h. Voltage more than 650v but less than or equal to 33kv is mv mt. Lt panel is an electrical distribution board that receives power from generator or transformer and distributes the same to various electronic devices and distribution boards. Lt ht panels power engineering manufactured goods scribd.
Sop for operation and maintenance of low tension lt. Testing and commissioning procedure for electrical installation 1. Ht panel with overload short circuitearth leakage protection of transformer. Our lt panels are designed to work with low electricity consumption that makes them cost effective ht panel is like lt panel except that it is used for high tension cables. Standard for an electrical preventive maintenance epm program.
Electrical inspection checklists this pdf contains 77 electrical inspection checklists taken from the 2014 electrical inspection manual with checklists. These lt panel manufacturing companies offer high quality products as per your requirement. What is the calculating formula for ht and lt amps in a. Check oil and winding temperature regularly with respect to manufacturers manual. T panels set as per latest iec standard at new legislature complex.
Lt panels or lt switchboards are designed to distribute steppeddown voltage to. Apply an antioxidant compound to all aluminumto copper connections. Ht panel is terms because it conatinsn more then one component. To lay down the procedure for operation and maintenance of low tension lt panels. What is the difference between them and what are their uses. The ht substation is composed of the following equipment and devices. Get updated database of low tension panel, lt panel manufacturers, suppliers and exporters. Lt electrical panel design, estimation, costing, erpsap. Sudhir is a leading panel manufacturer in north india and an alliance partner of schneider. Electrical control panel, ht panels, lt panels, capacitor. The power is transmitted at high voltage and low current. In pvd thermal evaporation high tension and low tension current are used.
Jun 08, 2009 i got this impression because all the distribution panels which were towards the supply end read ht on it and those that were read towards the ground end read lt on it. These component can be current transformer, potentail transformer. Hvx is the latest range of vacuum circuit breakers. The hvx panel meets the latest requirements of is and ansi standards 11 kv ht panel schneider circuit breaker 33 kv ht panel ht switchboards sudhir is a leading panel manufacturer in north india and an alliance partner of schneider. Made of dielectric elastomer which possess elastic properties and may be natural or synthetic in nature. The checklists are in pdf format and can be completed electronically or printed and used as hard copy.
Transfotech engineering is expert in manufacturing htlt panels. Bidders are advised to download bid submission manual for the help of bid submission process from. There cables should have metering arrangement at 11kv. Standard for an electrical preventive maintenance epm program page 210 andor connectors are used together, examine connections for signs of galvanic action. Commissioning of ht electrical system electrical engineering portal. These panels are manufactured using genuine quality. Feb 26, 2017 in india, voltage less than or equal to v is termed as lv lt. Lt panel elimination of old oil and regreasing the same with suggested grease, examine situation of arcing get in touch with and gap between set and going arcing agreements shall be examined. System for ht lt connection hvpn supply go switch ht metering vcb transformer lt panel power control centre, power factor panel, amf distribution panel sub distribution panel. What is the calculating formula for ht and lt amps in a transformer. Lt panel elimination of old oil and regreasing the same. The protection system at incoming supply shall be using numerical relays. Sep 27, 2012 read about control panel design guide.
It can call the generator set if the amf further connected to the main switch board received power from the other source normally from the local authority which equipped with auto transfer switchautomatic changeover contactor. Lt means low tension where in a low voltage is used with very high currentfor heating the resistive boats. The heat generated during transmission is proportional to current transmission. Such panels are used in industries both for internal and external use and, therefore, they are quite rugged to withstand different climatic conditions. Definition an enclosure that contains different type of switchgears, control and power units to perform the desired operation. Kindly suggest us the clearance for phase to phase,phase to neutral and neutral to earth. Amf panel is the short form of auto main failure panel.
Electric panels synchronizing panel, lt panel, ht panel. Projects product 11kv433v mobileskid mounted substation sheet 2 of 46 details of equipments. All the panels of ht switch gear, lt switch gear, pfi plant and distribution board are powder coated by high quality imported paints from berger. Jan 26, 2016 by focusing on variegated demands of our respected clients spread all over the country, we are offering an exclusive range of lt panel.
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