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Voltage Stabilisers for Telecom Sector
Voltage Stabilisers for Telecom Sector
Green Dot Electric Limited, an ISO 9001 unit, offers servo type Voltage Stabilisers for the telecom sector. These have a typical requirement of IP23, IP54 and IP55 environmental protection requirements along with high degree of reliability, robustness, good quality wave form, high MTBF and minimum maintenance and installed at remote unattended places to be maintained and looked after by people not so technical in the line. The company pioneered the development of servo stabiliser line with micro controller operation and fully digital user friendly LED displays of in-volts, out-volts and load current with all protections against single phasing, reverse phasing, low and high voltage cut offs and overload cut offs. The company has specially developed vertical track variable transformers with ball bearings for shafts, self adjusting and self aligning carbon systems moving on optically ground winding tracks and computerised power designs that have achieved operation efficiencies as high as 98 % even in wide ranges of say 160-480 V, 3-phase and in air cooled versions. Special units also have been developed for use on unreliable remote rural power lines that sense the three phases and with healthy phase selection system – ensure a continued supply even in case any of the phases have heavy dips in voltages or have frequent phase slips and failures. In case of unhealthy neutral at terminal points – isolation transformers have been developed that create dedicated and healthy neutral for use of expensive telecom equipment. These units are preferred choice of major telecom sector players as Reliance, Tata and Essar, etc., and have been functional over years at most of their sites for last 6-7 years.
