High voltage vacuum circuit breakerReal photograph show
Detailed description1. General1.1 Name and
modelZN39-40.5C/D(T) serial indoor high-voltage vacuum circuit
breaker. 1.2 Main application, use range and site
conditionZN39-40.5C/D(T) serial indoor high-voltage vacuum circuit
breaker is of indoor high-voltage distribution device with
technical parameter as 3ph, 50Hz and rated voltage of 40.5kV, which
is mainly applicable for JYN1-35 type movable AC metal closed
switch device and its renovation. That it can be used in
acceptance, control and protection of electric energy from
industrial company, power plant and distribution, especially for
the site where frequently operation is needed. 1.3 Normal operation
conditiona. Atmosphere temperature upper limit +40ºC
lower limit -10ºCb. altitude a.s.l no more than 1000m. c.
humidity Relative humidity: the average value per day no more
than 95%, 90% per month. Saturated vapor pressure: the
average value per day no more than 1.2×10-3MPA, 1.8×10-3MPa per
month.d. others un-noted should conformity with requirements of d,
e, f, g of item 3.1 of GB11022-1989. 1.4 Outlook drawing can be
seen Pic. 1, Pic. 2, Pic. 3 and Pic. 4. 2. Technical parameter2.1
Main technical parameter can be seen in sheet 1. 2.2 Main
mechanical parameter can be seen in sheet 2. 3 Structure and
working principle3.1 StructureStructure of ZN39-40.5C/T type
breaker can be seen Pic. 1 and Pic. 2, and ZN39-40.5C/D type can be
seen Pic. 3 and Pic. 4. Both the breaker are of hand trolley type
which can be put into movable AC metal closed switch cabinet of
JYN1-35 and GBC-35 type, and it can be used separately as well.
Each vacuum interrupter was supported by 3 pcs of insulator to get
stable structure and easy installation. Electro-magnetic operation
mechanism is of CD10-11 type, spring operation mechanism is of
CT19BN-1 type. 3.2 Inter-lock system can be seen in Pic. 1, Pic. 2,
Pic. 3 and Pic. 4 The breaker can not be closed when the hand
trolley was located between working position and test position
where the lock pin did not insert the location hole on hand
mechanism (no. 24 on the pic.). Operate the hand mechanism (no. 24
on the pic.) to make bend arm on components of no. of 19 to be
integrated with cabinet when the hand trolley comes to test
position or working position, then the breaker will be locked by
inter-lock device after breaker closing, so, the tripping of
breaking because of mis-operate the hand trolley under closing can
be avoided. For emergency, the hand mechanism (no. 24 on the pic.)
can be operated to release lock from lock pin, that the breaker can
be tripped. Sheet 1 Main technical
parameterS/NParameterUnitValue1Rated voltagekV40.52Rated
currentA1250, 1600, 20003Rated frequencyHz504Rated short-circuit
breaking currentkA20, 25, 31.55Rated short-circuit closing
currentkA50, 63, 806Rated peak withstand currentkA50, 63, 807Rated
short time withstand currentkA20, 25, 31.58Rated short time
continue S49Rated operation orderO-0.5s-CO-180s-CO10Rated breaking
current of single capacitorA40011Rated breaking current of
back-to-back capacitorA40012Rated closing inrush of capacitor
(frequency≤1000Hz)kA8.013Short-circuit breaking current under
different phase ground faultkA17.4, 21.75, 27.414DC component
percentage of short-circuit test on output side 40%15Rated
insulation level1min power frequencyGround, polekV95Withstand
voltageGap kV95Lighting shockGround, polekV185Withstand voltageGap
kV18516Breaking timems≤8017Mechanical lifetimes1000018Breaking
times under rated short-circuit breaking currenttimes1219Arcing
timems15≤3.3 Arc-control principleThe average free stroke of gas
molecular is large in vacuum that the gas is hard liberation.
Insulation strength of vacuum is much higher than of atmosphere,
when the switch opening, the arc will be appeared between contact,
and the surface of contact will generate metal vapor under high
temperature. Where magnet field will be occurred when current
passing through it because of special phase on the design of
contact. The arc will go fast along tangential direction of contact
surface with the force from this magnet field. The result is, there
are some metal vapor on the shield cover, that the arc will be
extinguished when it pass through zero and the dielectric strength
between contact will be back quickly. Sheet 2 Mechanical
parameterS/NParameterUnitValue1Contact open distancemm22±22Contact
strokemm6±13Allowable contact abrasion thicknessmm≤34Average
closing speedm/s0.6±0.25Average open speedm/s1.6±0.36Contact
closing elastic timems≤57Contact closing asynchronous ms≤28Contact
open asynchronousms≤29Open contact re-bound valuemm≤210Closing
timems30≤t≤10011Open timems30≤t≤6012C - O timems≤9013Main circuit
resistanceμ Ω≤8014Buffer distancemm10-24. Transport, acceptance and
storageDuring transportation, the VCB can not be turn-over, great
shake or raining. The user should do the following work and pay
attention to the items when VCB arrived. 4.1 Check t
Related products about Metallurgical Plant Use Indoor High Voltage Vacuum Circuit Breaker
-
Waste Tyre Plastic Recycling Machinery Machine Tire Crusher Production Line Rubber Crumb Grinding Machine Equipment Tire Shredder
-
Stretch Plastic Blowing Pet Bottle Making Blow Molding Machine Bottles Stretch Automatic Pet Bottle Blowing Machine
-
Waste Plastic Pet Bottle, Water Bottle Flake, PP/HDPE/LDPE PE Film Jumbo Woven Bags Plastic Crusher Machine, Plastic Crushing Washing Recycling Machine
-
Type 2 Wall-Mounted Electric Car Charging Station 7kw /11 Kwelectric Vehicle Charging Station Home Wallbox AC EV Charger Single Phase or 3three Phase
-
G-View G12W Wholesale Auto Car LED Headlight Bulb High Power H13 H11 9005 H7 H4 Car LED Headlights LED Car Lights
-
New Design Porcelain Round Plates Dinner Set for Wedding and Banquet
-
China 2023 New Design Super Soft 100% Polyester Microfiber Knitted Oversized Decoration Hoodie Blanket
-
Handmade Art Creative Materials Thickened White Paper Cup DIY Disposable Handmade Colored Paper Cup