BR Sales being one of the leading service providers in industry we are engaged in providing high quality Industrial Project Consultancy services. Our experts interact with the clients and analyze their needs and offer services accordingly. We are offering Consultancy for Electronic Products and Ceramic Lined Equipment’s.
It is basically current sensing single phasing preventer which gives total protection to three phase ac electric motor. The basic principle of operation is of sensing negative sequence current components and it trips electric motor starter as soon as it exceeds the dangerous level. This model offers protections upto motor terminals & is undefective to the motor back e.m.f. it is available in two models namely mgr & mgr-c. Both models are bascially same with slight difference in features like under/over voltage protection and inverse time current charactersitic setting.
These models offer total protection against single phasing on supply side as well as motor side. Overloading (inversely time current characteristics) reverse supply, current unbalance & low/high voltage, auto /manual reset provision etc. Is provided. The enclosure is made from high impact polysterene moulded with nylon moulded connection strip. It is available upto 200 amps. Green led indicates spp healthy condition and red led indicates overloading condition. Both models offer single phasing protection even if motor is on no load. It weighs 750 grams approx. And it's overall dimensions are 140 x 100 x 95mm.
MGR/MEG-C, current sensing SPP offers single phasing, reverse phasing, low/high voltage and overload protection with slight different features of inverse trip time current characteristics.
MGR: Fixed inverse trip time current characteristic (2 sec. std) which is factory set.
MGR-C: Variable inverse trip time current characteristic (from 2 sec. to 10 sec)
MGR V, voltage and current sensing SPP offers single phasing, reverse phasing and overload protections with fixed price trip time current characteristic (2 sec. std) which is factor set.
| System voltage | 415 V +/- 20%, 3 @, 50 Hz |
| Auxiliary supply | 415 /230/110 V AC, 50 Hz |
| Output contact rating | 1 C/O potential free, 6 A resistive at 230 V or 1 A at 415 V at 0.5 PF |
| Trip time delay | |
| For single phasing and reverse phasing | 4 to 7 seconds |
| For overload | As per inverse time current characteristics MGR/MGR-V: 2 sec. std (which is factory set) MGR-C: 2 sec to 10 sec (adjustable) |
| For MGR/MGR-C model | |
| High voltage cut-off/cut in | 500V +/- 5V/470 +/- 5V |
| Low voltage cut-off/cut in | 320V +/- 5V/340 +/- 5V |
| Reset | Auto/manual/remote by external push button |
| Power consumption | 3 VA |
| Recommended wiring | 1.0 sq. mm |
| H.V. Test | 2 KV AC, 50 Hz for 1 minute between mounting plate and any terminal |
| Humidity | Up to 95% RH |
| Enclosure | High impact polystyrene molded with nylon molded connection trip |
| Fail safe | Relay is energized in healthy conditions and trips in faulty conditions |
| Life expectancy | 0.5 x 105 operations |
| Indication for MGR/MGR-C | Power On, low volt, SPP faulty, high volt, overloads MGR-V: Current SPP healthy, voltage SPP faulty, overload |
| Dimension | Overall: 140x100x95 mm Mounting: 129 x 74 mm |
| CT Dimension | Inbuilt: 16 mm ID Separate: 31 mm ID |
| Weight | 750 gms (approx) |
