Gn30-12 Porcelain Isolating Switch

Gn30-12 Porcelain Isolating Switch
Specifications
1. Rated voltage: 10KV
2. Frequency: 50Hz
3. Function: Compact, small footprint, strong insulating ability, easy to install
Application
GN30-12 type rotary indoor high voltage isolating switch is a new type of touch rotating knife type isolating switch,
The main structure in three-phase chassis of the upper and lower two plane, fixed two set of insulator and contact,
By rotating contactor, so as to realize the switch of switching.
GN30-12D type switch is on the basis of GN30-12 switch increases with the form of earthing knife, can meet the
Needs of different power systems. This product design is compact, small footprint, insulating ability is strong, easy
To install, the performance meet GB198589 "ac high voltage isolating switch and earth switch" requirements,
Applicable to rated voltage 10 KV AC 50 HZ and the following indoor systems, as in the cases with voltage without
Load, for opening and closing current. Can be used with high voltage switch cabinet, and also can be used alone.
The use of environmental conditions
1. No more than altitude of 1000 meters.
2. Ambient air temperature: From -25° C to +40° C.
3. Air relative humidity: Daily average no greater than 95%; Monthly average no greater than 90%.
4. Amplitude: Seismic intensity not exceed degree 8.
5. Installation place: No fire, explosion, chemical corrosion and sharp shakes.
Type and meaning
Main technical parameterOutline and mounting sizeNumberNameUnitParameter1RatedvoltageKV122RatedfrequencyHz503RatedcurrentA6304Ratedclosedswitch-offcurrentA6305Ratedpowerloadswitch-offcurrentA63065%ratedpowerloadswitch-offcurrentA31.57Ratedcablechargingswitch-offcurrentA108Ratedno-loadtransformerswitch-offcurrent1250KVATransformerno-loadcurrent9Ratedshort-circuitcontrollycurrentKA5010Ratedshort-circuitpeakwithstandcurrentKA50114Sratedheat-circuitpeakwithstandcurrentKA2012RatedtransfercurrentA3150131minpowerfrequencywithstandvoltageKA4214Lightingimpulseresistingvoltage(peak)KA7515Mechanicallifestime1000TechnicalparameterNumberNameUnitParameter1Contactdistancemm8+12Contactultratravelmm3±13Three-phaseon-an-offnotthesameperiodms≤24Switch-oncontactjumptimems≤25Switch-onspeedm/s0.6±0.26Switch-offspeedm/s1±0.27MaincircuitresistanceμΩ<1508Switch-offtimes>0.069Interphasedistancemm210±0.2