Table of Contents
What is the difference between LT motor and HT motor?
LT motors called low tension motor and HT motor called high tension motor. LT Motor – Motors which work on 230 V, 415 V and 690 V. HT Motor – Motors which work on 3.3 KV, 6.6 KV and 11 KV. HT Motor – Motors which work on 6.6 KV & 11 KV.
Why HT motor is connected in star?
In the high voltage motor, the current is often small, and the insulation grade of the motor is required to be higher, so the insulation of the motor with star connection is better and more economical.
What is difference between HT and LT panel?
HT panels are installed both outdoor and indoor as well, while mostly used in substations for controlling the electricity flow. LT Panels are used with low tension cables to obtain power from the generator or transformer and distribute electricity to various electrical devices and distribution boards.
Why do motors run Delta?
For this reason, Induction Motor is started with Star connection to reduce the starting current by reducing the voltage across windings. So in running condition, delta connection is used to develop high torque by providing the high voltage across windings.
What is LT and HT?
LT (Low Tension) vs HT (High Tension) A low-tension line is a low voltage line and a high-tension line is a high voltage line. In India LT supply is of 400 Volts for three-phase connection and 230 Volts for single-phase connection.
Why LT motors are Delta connected?
When it goes to delta again voltage is full line voltage so current increase even though it is lesser than the line current it remains higher than the line current drawn in star connection at reduced voltage. So cables for motor are sized for this current that is what it draws in delta connection.
What uses high voltage electricity?
High voltage is used in electrical power distribution, in cathode ray tubes, to generate X-rays and particle beams, to produce electrical arcs, for ignition, in photomultiplier tubes, and in high-power amplifier vacuum tubes, as well as other industrial, military and scientific applications.
What’s the difference between HT and Lt in India?
LT (Low Tension) vs HT (High Tension) Tension is a French word for Voltage. A low-tension line is a low voltage line and a high-tension line is a high voltage line. In India LT supply is of 400 Volts for three-phase connection and 230 Volts for single-phase connection.
What’s the difference between HT and high tension lines?
Tension is a French word for Voltage. A low-tension line is a low voltage line and a high-tension line is a high voltage line. In India LT supply is of 400 Volts for three-phase connection and 230 Volts for single-phase connection. High tension or HT supply is applicable for bulk power purchasers who need 11 kilo-Volts or above.
How are LT and HT tariff structures different?
The tariff structures of most state distribution companies are different for LT and HT. In some states, a residential complex can benefit from lower rates if electricity is taken at bulk HT tariff. Internally the complex can provide electricity to its residents through the common supply.
When to use high tension or HT Power Supply?
High tension or HT supply is applicable for bulk power purchasers who need 11 kilo-Volts or above. Most small consumers of electricity like individual houses, shops, small offices and smaller manufacturing units get their electricity on LT connection.