Automotive Relays Dealers in Bangalore

We are offering numerical auto reclose relay. The relay is suitable for single and three phase. Auto reclosing the relay consists of five modules viz. Front fascia, power supply, two relay and status module and microcontroller module. All the modules are housed in a compact 3n non draw-out case. Microcontroller does the sequence control and timing function. Different operating functions and time setting are selected by the dip-switches on the relay front fascia.

the relay is suitable up to four shots. It consists of four cards viz.front fascia, power supply status input & output card and micro controller card are housed in a compact 3n non draw-out case. micro controller does the sequence control and timing function. The dip switches on the relay front fascia select different operating functions and time setting.there is a watchdog timer in the relay which continuously monitors the program, put off ^power on^ led indication if the watch dog timer elapses.to start an auto re close cycle, the initiating contact from the protective relay must be closed without chatter for at least 12 milliseconds.inputs:two optically isolated inputs are provided. One is used to take the three phase protection operated contact inputs to initiate the auto rec lose relay.the another input is used to block the re close functions if the external blocking input is initiated.reclose timer:the relay has four re-close timers. The relay selects the respective timer sequentially depending upon the number of re-close selection and the re-close initiation.reclaim timer:there is the common reclaim timer. It operates in series with the re-close timers. The over all reclaim time delay from the relay initiation to relay reset is therefore reclaim timer setting plus re-close time. For every initiation the reclaim time counting are resets automatically.lockout function:when the number of shots switch is in off mode the protection operated contact input initiation condition it will energize the lockout relay and lockout led indication and it blocks the re-close function.when the external blocking input is initiated, the re-close function is blocked and it energize external blocking led, lockout led and lockout relay.as the relay allows the maximum of four re-close depending upon the number of shots selection, the number of shots is less than the number of initiation within the reclaim time it will energize the lockout relay and its led indication.  

Prok dv's make PNA TYPE IDMT/DEFINITE TIME/INSTANTANEOUS LOW-SET/HIGH-SET NONDIRECTIONALNUMERICAL/MICROPROCESSOR BASED OVER CURRENT RELAY (OCR) WITHEARTH FAULT RELAY (EFR) or independent over current Relay (OCR) or earth fault relay (EFR).This is intended for protection application in medium voltage networks. These networks mayhave isolated or resistance impedance earthed or solidly earthed neutral points. Definitetime over current relays are both suited for isolated systems and for use as back up todifferential relays and distance relays. Inverse time relays (over current relays with variousinverse times - current characteristics) are advantageous for interconnected systems andsolidly grounded systems. Another tool for reducing the tripping time for faults near thesource is to use the added instantaneous ( high set ) feature in the numeric relay .if the faultoccurs during the setting of relay ,the relay shall operate / trip for the previously selected /default settings. Specification Three phase , low-set, non - directional Over current relay with inverse definite minimum time (IDMT) or definite time characteristics Three phase, high-set, non-directional Over current relay with instantaneous or definite time function Low-set non -directional Earth fault Relay with inverse definite minimum time (IDMT) or definite time characteristics Password protection 2 line 16 characters industrial grade LCD with back-lit module for numerical display of setting values and measured values which is user friendly Enabling /Disabling o f High-Set LED indications for power , pick-up, phase fault trip or Earth Fault trip f or IDMT and Highset RS-485 communication port with modbus protocol Relay test facility with relay trip & without relay trip High Drop-off/Pick-up ratio Consistent repeat accuracy Poly carbonate front cover with external reset switch

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