Outdoor drop type fusesare suitable for 35kV and below voltage andfrequency 50Hz power systems,used for overloadand shortcircuit protection of transmission lines and power transformers,and for breaking and closing rated load current.
The drop type fuse consists of an insulation bracket and a fusetube,with static contacts installed at both ends of theinsulationbracket and dynamic contactsinstalledat both ends of the fuse tube.Thefuse tube consists of an inner arc extinguishingtube andan outer phenolic paper tube orepoxy glass cloth tube.
JDZ3-3,6,10(Q)type single-phasedouble coil voltage transformer of epoxy casting insulationfor indoor device use,is used formeasurement of voltage and electric energy,relay protection in the AC circuit of rated frequency 50Hz as wellas other controldevicepower.(refer to figure 1 wiring diagram)
JDZ0)-3,6,10(Q)type single-phase double coil voltage transformer of epoxy casting insulation for indoor device use is used formeasurement of voltage and electric energy,relay protection in neutral non-direct earthing system of rated frequency 50Hz aswell asfor other control device power(refer to figure2 wiringdiagram)
Standard.IEC61869-3
Polymer insulator shed made of silicon rubber for grantee the outside insulation;high strength expoxy poles provideinsideinsulation for products and sustain machine load.These products use new technology.which press connect of mold,mandril andmetal terminal which.improved the products,reliability,the charaters as follows:
Superiorelectrical functionand strength soiling,small olumn,light weight,excellent impulse resistence,shock resistence,and
explode resistance
General
1.YCCH6/YCCH7 series AC contactor (hereinafter referred to as the household appliances control a contactor)is used for remote switch on and off without a sense of feeling or low load,resistance furnace,household appliances and similar lowload,motor and other household.
2.The main contactor is used in AC 50Hz/60Hz,rated voltage to400V,rated current of power system to 100A,AC-1,AC-7a (in no sense or sense of low load, resistance furnace,household appliances and similar low load)categories,long distance switch and control circuit.
3.Contactor is not used for breaking short circuit current,so it is necessary to choose suitable shortcircuit protection electrical equipment.