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C-419EM Instruction Manual, March 2015

Ground fault relay

microprocessor-based relay

mGARD-100

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Содержание mGARD-100

Страница 1: ...C 419EM Instruction Manual March 2015 Ground fault relay microprocessor based relay mGARD 100...

Страница 2: ...mer service and technical leadership We build on this foundation by investing in developing new products in electrical safety education including EFC scholarship program by actively participating in t...

Страница 3: ...safe 4 Manual Rreset 4 3 2 Dipswitch Settings 4 3 3 Indication 6 mGard Sym Remote Indicator 6 3 4 Reset 7 3 5 Ground Fault Test 7 4 Installation Instructions 8 4 1 Mounting 8 4 2 Built In Current Tran...

Страница 4: ...nate false tripping when using the relay on systems with variable frequency drives With the harmonic filter disabled the relay will accurately respond to AC currents between 25 and 400Hz By using an i...

Страница 5: ...mpere for all relays and coordinating between upstream and downstream relays by selecting different time delays 3 operation 3 1 Operation and Glossary of Terms Auto Reset After a trip the relay will a...

Страница 6: ...s set to trip the relay contacts change their state Time Delay Intentional period of time programmed to elapse before the tripping operation of the relay It should not be confused with the breaking op...

Страница 7: ...L R R R R L L R R L R R R R L R R R R 30 40 60 90 150 250 400 600 900 1500 2500 4 6 9 10 12 3 4 6 9 15 25 40 60 90 150 250 400 600 900 1000 1200 30 40 60 90 150 250 400 600 900 150 250 4000 6000 9000...

Страница 8: ...t Trip LED Steady On Control voltage too low or mGARD 100 defective MGARD SYM REMOTE INDICATOR The mGARD SYM is a remote display indicator that is used in conjunction with I Gard relays The indicator...

Страница 9: ...t is NOT necessary to press the remote test reset button after the ground fault has been cleared when the mGARD 100 is set in the pulsed trip auto reset mode In this mode the relay will reset automati...

Страница 10: ...ing current sensor keep the distance between the relay and the sensor as short as possible Use twisted cable and increase the gauge of the conductor as per the table below Table 4 0 ZSCS secondary wir...

Страница 11: ...4 Cables in form factor 2 42 mm 0 3 0 34 0 43 0 59 0 75 0 87 1 02 7 74 8 7 11 15 19 22 26 6 7 Cables in form factor 3 0 mm 0 37 0 43 0 54 0 73 0 93 1 07 1 26 9 6 10 8 14 18 24 27 32 9 10 Cablse in fo...

Страница 12: ...phase and neutral conductors through the window of the interposing zero sequence current sensor Note that the relay is located downstream from the neutral ground point Position the cable in the centre...

Страница 13: ...shows an mGARD 100 relay operating in non failsafe mode The relay is monitoring the neutral conductor in a resistance grounded system Figure 4 3 shows a system with several mGARD 100 relays monitoring...

Страница 14: ...listed below in Table 5 1 Table 5 1 mGARD 100 DC control voltage options 12V 9 18 VDC 12DCV mGARD 100 12DCV 24V 18 36 VDC 24DCV mGARD 100 24DCV dc voltage range catalogue number suffix example 6 serv...

Страница 15: ...ts Main Trip Relay Type Form Z N O and N C pair Rating 10A 250V AC resistive 10A 30V DC resistive Terminal Contact Material Clamping screw nickel plated brass Plug contacts tin plated bronze Physical...

Страница 16: ...I GARD RESERVES THE RIGHT TO CHANGE SPECIFICATIONS OF ITS PRODUCTS WITHOUT NOTICE 8 dimensional drawings Figure 8 0 mGARD 100 dimensions in millimetres inches...

Страница 17: ...Notes...

Страница 18: ...www i gard com Phone 905 673 1553 Toll Free 1 888 737 4787 Fax 905 673 8472 sales i gard com...

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