CONTACTORS FOR CAPACITOR SWITCHING

Transcription

1 CONTCTORS FOR CPCITOR SWITCHING

2 INDEX 3 CNNK,5 CNNK 7,5 4 CNNK N CNNK 3 N New Series 5 CNNK 4 N CNNK 75 N New Series 6 Technical Information 9 Dimensional Drawings Order form

3 CONTCTORS FOR CPCITOR SWITCHING CNNK,5 - CNNK 7,5 CONTCTORS CNNK..N - CNNK 3..N - New Series FOR CPCITOR SWITCHING Features In conformity with: IEC , EN Switching of 3 phase capacitors mbient temperature of 55 C vailable in other C voltages on request Maximum permissible peak current I Ie Features In conformity with: IEC , EN Switching of 3 phase capacitors mbient temperature of 55 C vailable in other C voltages on request Maximum permissible peak current I Ie New series 5 sizes: 5; ; 3; 6; 75 New precharging resistors for increased service live Selection and ordering data Selection and ordering data C-6b utilization category uxiliary Type For switching three-phase capacitors contacts at operating voltage 5 Hz 3 V 4/44V,4,5, V 3,7 7,5 Ie () 4 V/5 Hz 3,6 7, NO NC CNNK,5 CNNK,5 Weights kg CNNK,5.4.5 CNNK 5.5 C-6b utilization category uxiliary Type For switching three-phase capacitors contacts at operating voltage 5 Hz 3 V 4/44V 5 6, V 5 8 Ie () 4 V/5 Hz 4 8 NO NC CNNK N CNNK N CNNK N CNNK N CNNK N CNNK N Weights kg.3.3 CNNK 5 CNNK CNNK 5 N CNNK 5 N CNNK 5 N. CNNK 7,5 4 7,5 CNNK 7,5 CNNK 7,5 * CNNK N CNNK N.333 NEW Note: Maximum permissible peak current I times the nominal rms current of the switched capacitor CNNK 5E N* CNNK 5 N CNNK 5 N.45.5 * With BP CNNK 3 N CNNK 3 N.55 Precharging resistors are an integral component of the CNNK..N contactors, equipped with early-make contacts. This special type of contact has the purpose of connecting for a very brief interval, -3ms, during the contactor closing, resistors which limit the connecting current of the capacitors. These resistors are then excluded when the closing operation is complete and the current capacity is conveyed to the main contacts. With this type of circuit, it is possible to obtain minor wear of all the components of the system especially fuses and capacitors ensuring a longer life and better reliability. Suitable for capacitors with and without reactor protection. 3 4

4 CONTCTORS CNNK 4..N - CNNK 75..N - New Series FOR CPCITOR SWITCHING TECHNICL INFORMTION CONTCTORS type CNNK,5 - CNNK 7,5 In confomity with: IEC , EN Features In conformity with: IEC , EN Switching of 3 phase capacitors mbient temperature of 55 C vailable in other C voltages on request Maximum permissible peak current I Ie Selection and ordering data New series 5 sizes: 5; ; 3; 6; 75 New precharging resistors for increased service live Special contactors for power factor correction Choice criteria The contactor during the closing transition is influenced by electrical currents with high frequencies and high amplitudes. The frequencies of these currents have ranges between and khz and the amplitudes must have values lower than the maximum permissible peak current I times the nominal rms current of the switched capacitor. C-6b utilization category For switching three-phase capacitors at operating voltage 5 Hz 3 V /44V V Ie () 4 V/5 Hz 58 7 uxiliary contacts Type CNNK 4 N CNNK 4 N CNNK 5 N CNNK 5 N CNNK 6 N CNNK 6 N CNNK 6N N CNNK 6N N CNNK 7 N CNNK 7 N Precharging resistors are an integral component of the CNNK..N contactors, equipped with early-make contacts. This special type of contact has the purpose of connecting for a very brief interval, -3ms, during the contactor closing, resistors which limit the connecting current of the capacitors. These resistors are then excluded when the closing operation is complete and the current capacity is conveyed to the main contacts. With this type of circuit, it is possible to obtain minor wear of all the components of the system especially fuses and capacitors ensuring a longer life and better reliability. Suitable for capacitors with and without reactor protection. 8 NO NC Weights kg CNNK 75 N CNNK 75 N.5 Type designation at operating voltage 5/6Hz Ie/C-6b et 4 V Insulation rating Ui V Permissible ambient temperature 3V 4-44V 5-55V 66-69V C CNNK,5 CNNK,5 CNNK 5 CNNK 5 Rated impuls wihtstand voltage Uimp kv 8 Consumption of electromagnet in cold state with Un C operated closing V 6 p.f.,75 closed V 7 p.f.,3 Voltage tolerances,85 -, Un Coil,8 / M3,5/PZ Degree of protection IP Maximum permissible fuse ratings main circuit gl/gg 5 4 auxilliary circuit Frequency of switching operations s/h 4 Electrical endurance min Sizes of connecting conductors - main circuit PZ PZ PZ,,,4 - auxiliary circuit -,5,75-,5 M3,5 PZ,8 Loadability of auxiliary contacts rated continuous current Ith; C C rated operational current Ie/C5 for 3 V 6 4 V 4 5 V 69 V 69-5 to + 55 CNNK 7,5 CNNK 7,5,4.8 4,5 5 7,5 3 5,5 9 3,7 7,5 3,6 7, 5 6

5 TECHNICL INFORMTION CONTCTORS type CNNK..N - CNNK 3..N In confomity with: IEC , EN Special contactors for power factor correction Main characteristics These contactors are equipment with early - make contacts. This special type of contact has the purpose of connecting for a very brief interval, -3 ms, during the contactor closing, resistors which limit the connecting current of the capacitors. These resistors are then excluded when the closing operation is complete and the current capacity is conveyed to the main contacts. Maximum permissible peak current times the nominal rms current of the switched capacitor. Type designation 3V at operating 4-44V voltage 5-55V 5/6Hz 66-69V Ie/C-6b at 4V Insulation rating Ui V Permissible ambient temperature C Rated impuls wihtstand voltage Uimp kv 8 Consumption of electromagnet in cold state with Un C operated closing V 6 65 p.f.,75,75 closed V 7 8 p.f.,3,3 Voltage tolerances,85 -, Un Coil,8 / M3,5/PZ Degree of protection IP Maximum permissible fuse ratings main circuit gl/gg auxilliary circuit Frequency of switching operations s/h Electrical endurance min. Sizes of connecting conductors - main circuit CNNK N CNNK N CNNK N CNNK N CNNK N CNNK N PZ PZ PZ PZ PZ,,,,4,6 - auxiliary circuit -,5,75-,5 M3,5 PZ,8 Loadability of auxiliary contacts rated continuous current C C rated operational current Ie/C5 for 3 V 6 4 V 4 5 V 69 V 6 5. CNNK 5 N CNNK 5 N CNNK 5 N 5 6 CNNK N CNNK N 69-5 to CNNK 5E N CNNK 5E N CNNK 5 N CNNK 5 N CNNK 3 N CNNK 3 N Ith at 4V M TECHNICL INFORMTION CONTCTORS type CNNK 4N - CNNK75N In confomity with: IEC , EN Special contactors for power factor correction Type designation at operating voltage 5/6Hz Ie/C-6b et 4 V Insulation rating Ui V Permissible ambient temperature C Rated impuls wihtstand voltage Uimp kv Consumption of electromagnet in cold state with Un C operated closing V 55 p.f.,6 closed V p.f.,9 Maximum permissible fuse ratings main circuit gl/gg auxilliary circuit Frequency of switching operations s/h Electrical endurance 3V 4-44V 5-55V 66-69V Ith at 4V min. Sizes of connecting conductors - main circuit CNNK 4 N CNNK 4 N 6 6- CNNK 5 N CNNK 5 N - 5 to + 55 M6 PZ auxiliary circuit -,5,75-,5 M3,5 PZ,8 Loadability of auxiliary contacts rated continuous current Ith; C 6 C rated operational current Ie/C5 Ith; for 3 V 4 V 6 5 V 4 69 V CNNK 6 N CNNK 6 N 8 CNNK 6N N CNNK 6N N CNNK 75 N CNNK 75 N Voltage tolerances,85 -, Un Coil,8 / M3,5/PZ Degree of protection IP CNNK 7 N CNNK 7 N ,54 6,6 M

6 DIMENSION DRWINGS () DIMENSION DRWINGS () CNNK,5; CNNK 5 CNNK 7,5 CNNK 4..N, CNNK 5..N, CNNK 6..N / CNNK 6N..N, CNNK 7..N, CNNK 75..N 7, 7, / / 85 / /7 6/8 CNNK..N; CNNK..N; CNNK 5..N CNNK..N Drilling plan () CNNK 5E..N; CNNK 5..N, CNNK 3..N CNNK,5; CNNK 5 CNNK 7,5 CNNK..N; CNNK..N CNNK 5..N; CNNK..N CNNK 4..N, CNNK 5..N, CNNK 6..N / CNNK 6N..N, CNNK 7..N, CNNK 75..N / 5 / CNNK 5E..N CNNK 5..N; CNNK 3..N 4 / 6 ORDER FORM 8 8 Type Control voltages (Note - standard control voltages 3V/5Hz, 4V/5Hz) Example: Contactor for capacitor switching CNNK6, with one NO and zero NC auxiliary contacts, with control voltage 3V, 5Hz CNNK 6 N 3V/5Hz 9

7 RDE KONCR KONTKTORI I RELEI DOO III Makedonska Brigada no. 54 Skopje, Macedonia