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technical parameter of circuit breaker

By Heather Wallace,2014-11-11 17:06
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technical parameter of circuit breaker

     Shandong Taikai International Engineering Co., Ltd.

    Circuit breaker technical parameter

    No. Specification Unit Value 1 Rated voltage KV 40.5 2 Rated Current A 2500 3 Rated short circuit breaking current KA 31.5 4 Rated short-circuit current (peak) KA 100 5 Rated short continuous current (thermal current) KA 40 6 Rated peak withstand current (dynamic current) KA 100 7 Rated frequency Hz 50 8 Rated breaking current step KA 10 9 Rated voltage SF6 gas (when 20;C gauge) MPa 0.5

     Shandong Taikai International Engineering Co., Ltd. 10 Alarm Pressurewhen 20;C gauge MPa 0.45 11 Closure pressurewhen 20;C gauge MPa 0.4 12 Lowest temperature ;C -50 13 Altitude M 1350 14 Rated short duration (thermal stabilization time) S 4

    White and on the Lightning 185 ground impulse

    KV (full-wave

    Fracture 215 peak) Rated insulation 15

    level White and on the 1 minute power 95

    ground frequency KV

    withstand

    Fracture 118 voltage

    16 Rated operating sequence O-0.3S-CO-180S-CO

     Shandong Taikai International Engineering Co., Ltd. 17 Radio interference level μV ?500 18 Closing time ms ?50 19 Opening time ms ?60 20 Pollution level Class IV 21 Type of operation 3 pole 22 Breaking number of full capacity time 20 23 Leakage rate %/year ?1

    Sulfur hexafluoride gas moisture contentwhen it is 24 μL/L ?150

    20;C

    25 Mechanical life time 6000 26 Sulfur hexafluoride gas weight Kg 2.05.0 if CT attached

     Shandong Taikai International Engineering Co., Ltd. 27 Breaker total weight (including the operator) Kg 8001200 if CT attached 28 Installation type Outdoor 29 Spring mechanism motor voltageAC/DC V 220

    CT

    1 Rated voltage kV 40.5 2 Rated current A 300/300/300/300/300/5A 3 Power capacity VA 15/40/40/40/40 4 Accuracy class 0.2S/0.5S/10P/10P/10P 5 Insulation type Dry type 6 Rated frequency Hz 50

     Shandong Taikai International Engineering Co., Ltd. 7 Ambient temperature ? -45- +45 8 Pollution level IV 9 Rated peak withstand current KA 100 10 Rated lightning impulse withstand voltage kV 185 11 Rated power frequence withstand voltage1min kV 95 12 Measurement of partial discharge Pc ?5

    Short-time power frequency withstand voltage and test

     time

    13 Secondary windings KV 3 (1 min)

    Primary winding to secondary winding KV 95 (1 min)

     Shandong Taikai International Engineering Co., Ltd.

    Rated lightning impulse withstand voltage (internal 14 KV 200 and external insulating)

    tanδ?0.002 (Ambient temperature during 10?15 Dielectric loss -30?)

    Under rated current and rated output, the

    The temperature rise limit temperature rise of the CT is no more than the

    16 below data.

    Windings K 65

     Winding outlets and contacts K 50

    17 Rated short time thermal current (Ith) KA/1S 30

    18 Rated dynamic current (Idyn) KA 75

    19 Creepage distance mm 1260

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