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Three Phase Zero Sequence Current Transformer For Ring Cabinet / Inflatable Cabinet Voltage

Categories Zero Sequence Current Transformer
Brand Name: GFUVE
Model Number: LZZT943-10
Certification: CE, ISO9001, UL
Place of Origin: BEIJING CHINA
MOQ: 3 PCS
Payment Terms: L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability: 20000 PCS/MONTH
Delivery Time: 3-7 days
Packaging Details: Standard export carton
Name: Three phase Current Transformer
Rated load: ≤10VA
Usage: Protection current transformer
Ratio: 50-600A / 5A or 1A
Weight: 9.5KG
FS: ≤10
Material: ABS + resin
Diameter: 82mm
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    Three Phase Zero Sequence Current Transformer For Ring Cabinet / Inflatable Cabinet Voltage


    LZZT943-10 resin cast Three phase Zero Sequence Current Transformer for Ring cabinet and inflatable cabinet voltage


    Introduction

    LZZT Combined bushing type three phase current instrument transformer is suitable for current measurement and protection of distribution equipment in 35kV or 10kV AC. power system. The combined bushing type current transformer is fit for be installed at the three-phase bushings of the ring switchgears and the switches on the wire poles, It is used to the measurement and protection of the three-phase current and the zero sequence current for the three-phase bushings and the zero sequence current for the loops of the several cables.


    It is widely used in compact fully insulated ring network switchgears such as ABB-Safe Ring/Safe Plus...and cable distribution boxes. The current transformer can be directly installed at the inlet andoutlet cables.The slice is imported silicon material. Thesemicircular ring core and secondary windings arevacuum poured by insulated resin.


    New magnetic material amorphous alloy or permalloy is taken to be the core of the current transformer, which has high magnetic permeability, low saturation induction density and good stability. Therefore, the measuring accuracy is higher and the instrument security factor in lower. Since the high quality silicon steel sheet metal processed by advanced technology is taken to be the core of the protection windings, the accuracy limit factor will be higher.

    The circular ring core and secondary windings are poured by high quality epoxies resin or polyurethane or silicon rubber in the fire retardant plastic casing, which has the characteristic of moisture proof, stable performance and dispensing with maintenance. The cable can cross the current transformer through its internal poles quickly and uniformly.

    The current transformers can be divided several kinds according to the various current ratio, accuracy and rated loads. The specific parameters are showed in the corresponding parameter tables of every type.


    Outline drawing


    Wiring diagrams


    A, B, C 3P one Coil CT A, B, C 3P one Coil CT+ ZCT


    A, C 2P one Coil CT A, C 2P one Coil CT+ZCT


    A, C 2P double Coil CT A, C 2P double Coil CT+ZCT


    A, B, C 3P double Coil CT


    A, B, C 3P double Coil CT+ZCT


    Ordering instructions


    Be sure to indicate model, current ratio, accuracy class, rated load and use of the products when designing, selecting type or purchase. Special specifications could be customized.

    All kinds of current transformers of different specifications and parameters can be made according to the client's demands.

    LZZT Combined bushing type current instrument transformer: 1A or 5A.Secondary winding could be tapped when necessary, namely multi-current-ratio transformer.


    PARAMETERS


    Technical parameters
    StandardsIEC60044-1; IEC 61869; NTC 2205; ANSI C57.13; GB1208-2006
    Rated primary current20-600A
    Rated load≤10VA
    Rated frequency50Hz or 60Hz
    Rated secondary current5A or 1A
    Rated short-time thermal current40kA, 1S
    Rated continuous thermal current120%I1n
    Secondary winding power-frequency voltage3kV, 1min
    Instrument security factorFS≤10
    Diameter(mm)75
    Mechanical parameters
    Dimensions (W×D×H) (mm)3-Φ75/150-440×150×80
    Weight (kg)9.5
    Operating conditions
    Operating temperature-35°C to +55°C
    Daily average temp<+40°C
    Storage temperature-40°C to +70°C
    Altitude<3500 meters
    ConditionNo existence of severely begrimed, erosive and radioactive gas in the air. Permission of long-term operation under rated current.

    TypeLZZT943-10LZZT943-10
    PurposeMeasuring current transformerProtection current transformer
    RatioAccuracy class and rated load(VA)Accuracy class and rated load(VA)
    I1/I20.51310P1510P1010P5
    20/11
    40/11.5
    50/12.51.5
    75/13.7512.5
    100/12.5512.5
    200/13.7557.52.55
    300/157.512.53.757.5
    400/17.51015512.5
    500/11012.520512.5
    600/112.515207.515
    50/5A2.5
    100/52.51.522.5
    150/52.53.7551.52.52.5
    200/52.55522.52.5
    300/55552.52.53.75
    400/57.57.5103.7555
    500/5101012.5557.5
    600/51012.5155510
    800/512.512.51551010
    1000/515152051010
    2000/5151520101520

    Quality Three Phase Zero Sequence Current Transformer For Ring Cabinet / Inflatable Cabinet Voltage for sale
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