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1 Products availableWe are leaders in the market for providing best range of Electric Motor Anti-Condensation Heater
| 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: | ||||||||||
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| 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. | ||||||||||
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| RTD Introduction | ||
| Thermos platinum resistance elements are specially designed to ensure precise and repeatable temperature versus resistance characteristics. The sensors are made with controlled purity platinum, have high purity ceramic components and constructed in a unique strain-free manner. | ||
| RTDs are best for most industrial measurements over a wide temperature range, especially when sensor stability is essential for proper control. Generally speaking, if accuracy is your most important concern and the application temperature is between 140C and 650C RTDs are probably the best choice. Three-wire is the most common but four-wire provides higher system accuracy. | ||
| Flat, laminated stick RTDs fit in slots between stator windings to monitor temperature rise and prevent overheating. The National Electrical Manufacturers Association (NEMA) recognizes embedded detectors as a standard protection for motor and generator insulation. Unlike on-off devices, RTDs provide continuous sensing for earlier warning without unnecessary tripouts. The sensing elements of stator RTDs extend through most of the body length to provide an average temperature reading. This eliminates the danger of a point-type sensor missing a localized hot spot. Six sensors are recommended for each motor, two per phase. Locate sensors near the hottest point of the windings for best performance. This RTD are generally flat type in construction and are available in various sizes. Thermo stator RTDs meet the specifications of ANSI C50.10-1990, general requirements for synchronous motors. | ||||||||||||||
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| Thermal protectors | ||||||||||||||||||||
| Thermal Overload Protector provides over temperature protection. A Thermally sensitive bimetal snap element switches when it reaches a preset response temperature or a fixed current level, opening the circuit. Current flows through the bimetal element giving a combination of temperature and current protection.Heat transfer occurs from all sides through convention, radiation or conduction. | ||||||||||||||||||||
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| The advantages TOP | ||||||||||||||||||||
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Thermo System Anti-Condensation Heaters provides low cost protection against condensation within rotating electrical equipment. The electric motor anti-condensation heater is specially designed for moisture proofing. Typical applications would be electric motors, generators and alternators which operate in damp or wet conditions. Examples would include off shore, shipboard and marine equipment, dockside cranes, well pumps and all equipment operating in a tropical environment. Specifying anti-condensation heaters at the design stage can save the expense of costly rewinds and down time.
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hermowells are recommended to protect both the operator and the temperature sensor. The proper thermowell will reduce the possibility of damage to the temperature sensor due to corrosion, pressure or the flow of abrasive or viscous media. In addition a defective instrument may be removed without shutting down or draining the process.
| Complete Protection from burning of winding | ||||||||||||||
| Thermo System Thermistors are manufactured in accordance with DIN 44081 and 44082. In three phase motors, one Thermistor should be embedded in each phase. Good thermal coupling between Thermistor and winding is essential. The resistance increases sharply in the region of the nominal response temperature. Because the PTC assemblies are very small and rugged, they can be located in compact locations where protection is needed, such as directly inside the motor windings and can withstand standard varnish dip and bake operations and other handling. Response times ≤ 5 sec. are achieved with THERMO SYSTEM Thermistor. | ||||||||||||||
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| Resistance-temperature diagram and main characteristics in accrodance to DIN 44081/44082 | ||||||||||||||
| Thermo System motor protection sensors conform to DIN 44081 or 44082 and are characterised by very high temperature sensitivity. In the range of the nominal alternating temperature the resistance increases sharply. This change can be used by a relay to disconnect the load circuit. Electronic evaluation circuits in widely varying applications are also possible. The resistance temperature diagram shows the typical characteristics of the Thermo System PTC. Load must not be applied to the thermistors as this creates a self-heating effect. At ambient temperature the resistance value of thermistors is normally between 30 and 250 Ω. At ambient temperature the resistance values have no relevance to the serviceability (functionality) at the ROT (rated operating temperature).The ROT of PTC-thermistors in the range of +60°C to +190°C progresses normally in steps of 10 K. |
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| Colour Coding For Different Temperature Ratings | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Goregaon, Mumbai, Maharashtra 
