1.General description VACYC permanent magnet AC M.V. vacuum contactor and VACFC series AC M.V. vacuum contactor-fuse combination apparatus(F-C) are three-phase AC indoor middle voltage switch device suitable for AC 50-60Hz and the rated working voltage of main circuit is 7.2kV and 12kV.It has the advantages of flexible function combination,compact and reliable structure,multiple protection functions,long service life and allowed frequent operation.It can be widely used to open and close load circuits such as AC motor and transformer,and can also be used for capacitor reactive power compensation.
VACFC series combination apparatus adopt modular combination structure,which can be used by single contactor or combined into F-C,and can be fixed or drawout moving type.The drawout type can be used with KYN28A(GZS1) intermediate cabinet with width of 650mm or 800mm,and can be used to replace VSC/P contactor.
VACFC contactor can be used alone or with other electrical apparatus.
VACFC permanent magnet AC M.V. vacuum contactor and VACFC series AC M.V. vacuum contactor-fuse combination apparatus meet the requirements of national standards GB/T 14808 and GB/T 11022.2. Normal using conditionsa. Environment temperature : -5ºC~+40ºC, and average value is no more than +35ºC within 24 hour.
b. Altitude: no more than 1000m.
c. Atmospheric conditions: monthly highest humidity in the most wet month is no more than 90% and monthly average minimum temperature
shall be 25ºC. Condensation on the products due to temperature changes shall be considered.
d. Impact vibration: The place is without extensive shaking, impact, and vibration.
e. The place is without explosion hazard, enchant gas and sleet.
f. No rain and snow in places
g. Pollution degree: Three grade
h. Installation type: .IIIi. Installation condition: Slant angle between installation surface and vertical surface is no more than 15°.
3.Main technical parameterItem | Unit | VACYC | VACFC |
Rated voltage | kV | 12 | 7.2 | 12 | 7.2 |
Rated current | A | 400 | 25-160 | 25-315 |
Rated breaking current | kA | 3.2 | 40 |
Rated making current | kA | 4 | - |
Limit breaking capacity | kA | 4.5 | 40(100peak value) |
4s rated short time withstand current | kA | 4 | - |
Peak withstand current | kA | 10 | - |
1s overload withstand current | kA | 6 | - |
Rated transfer current | kA | - | 3.15 |
1 min rated power frequency withstand voltage | kV | 42 | 32 | 42 | 32 |
Lightning impulse withstand voltage | kV | 75 | 60 | 75 | 60 |
Power frequency withstand voltage of control circuit | kV | 2 | 2 |
Rated operating voltage | V | 220V(AC/DC optional) |
Operating voltage range | V | 75%-100% Ue |
Maximum operating current | A | <7.5 |
Rated current of auxiliary contact | A | 5 |
Life electrical AC3 | Thousand times | 25 |
Life electrical AC4 | Thousand times | 10 |
Life mechanical | Thousand times | 50 |
Rated operating frequency | times/h | 300 |
Short time operating frequency | 20s | 600 |
Closing time | ms | ≤40 |
Opening time | ms | ≤35 |
Average closing speed | m/s | ≥0.4 |
Average opening speed | m/s | ≥0.45 |
Three phase non-simultaneity | ms | ≤5 |
Clearance between open contacts | ms | ≥5 | ≥3.5 | ≥5 | ≥3.5 |
Over travel | mm | ≥1.5 |
Main circuit resistance | μΩ | ≤150 | ≤150 Not including fuse |
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