Protective Relays Dealers in Goregaon, Mumbai

The Brain that provides round the clock protection for your electric motor     The Thermistor Protection Relay TSDIN01 is used for tripping motors, transformers etc. whenever the excessive temperature developes in the winding.The Relay controlled by thermistors guarantee first of all the thermal overload protection of electrical machines. The switching point of the complete protection is specified by the nominal response temperature of the used thermistors. Appliances with two input circuits offer the possibility of warning and shut-off.           The thermistor Protection Relay TSDIN01 can be combined with all thermistors with a characteristic curve according to DIN 44081 / 082           Function and Applications     After mounting the thermistor detectors into e.g. the winding tips of the protected motors, the release is connected. The number of the connectable PTC according to DIN is only limited by its total resistance R25. If the temperature in one of the controlled parts or areas increases over the nominal response temperature of the respective PTC sensor e.g. by:           Blocking rotor Aggravated start-up Counter current operation Under-voltage or phases break down           So this becomes high resistive and the thermistor release shuts off the motor protection switch over a relay. Dependent on the type of release a switch-back occurs after cooling down of about 2 .. 5 K. For cases of application at which an automatic re-start is not suggestive or not acceptable, thermistor release device with power-on blocking are available. For this design has to be made a manual unlocking to re-start the machine after a thermal shut-off.           Key Features:     Various input voltages DIN Channel and chassis mounting Very compact size 1NC & 1 NO potential-free contacts.

Electric motors are crucial component in virtually every industrial automation application or environment. Therefore optimizing their performance and reliability can play a major role in reducing costs and improving overall plant efficiency. Electric motors fail and about half of them fail because of overheating through overload, phase failure or insulation breakdown. There are wide ranges of motors and motor characteristics in existence, because of numerous duties for which they are used and all of them need protection. Fortunately, the more fundamental problems affecting the choice of protection are independent on the type of motor and the type of load to which it is connected. Motor characteristics must be carefully considered when applying protection. It is emphasized because it applies more to motor than other items of power system plant. Protection of motor exists in any form, a variety of designs & either packaged individually or in different combinations. The fundamental and basic aim should be permit the motor to operate up to, but not to exceed its thermal and mechanical limits for overloads and abnormal operation conditions and to provide maximum sensitivity to faults.

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