Electrical measuring instruments >> transformers industrial >> voltage transformers >> residual current transformers

TZZ-4

131 262 RUB
40 872 UAH

Online prices include VAT.

For order is possible effectively delivery of any quantity.
    Current transformer TZZ-4 (TZZ4, TZZ 4, T33-4, T334, T33 4, TZZ-4 U3)
    Current transformer TZZ-4 is designed to power the relay circuit fault to earth individual wires three phase cable through the transformation occurred with zero sequence currents.
    Transformers are designed to be installed on the cable.
    Technical characteristics of the instrument current transformers TZZ-4:
    Diameter cable clasps - 50mm;
    Number spanned cables - 4;
    Voltage instrument transformer magnetizing current TZZ-4 - 110V;
    Rated voltage - 0,66;
    Nominal AC frequency - 50 Hz;
    Transformation ratio device TZZ CT-4 U3 - 20/1;
    A one-second thermal current - 120A;
    One-minute test voltage of the device TZZ CT-4 - 3 kV;
    EMF imbalance - less than 150mV;
    Type of relay, the current set point and sensitivity of the protection on the primary current are shown in Table 1;

    Table 1 Type of relay, the current settings and the sensitivity of the protection on the primary current


Type of relay
Setting current
Sensitive to the primary current, not more
when a single transformer
a series connection of two transformers
In parallel connection of two transformers
RTZ-51
0.122 A
3.0 A
3.0 A
3.0 A
   
   
General view of the device shown in Figure 1;
    Figure 1: General view of the instrument current transformer TZZ-4

Общий вид прибора трансформатор тока ТЗЗ-4
   
   
Dimensions and weight of the device TZZ CT-4 are shown in Table 2;
    Table 2: Dimensions and weight of the unit CT-4 TZZ


Measurements
Weight
L
H
H1
A
A1
B
B1
450mm
400mm
200mm
420mm
278mm
335mm
92mm
150kg
   
    The transformers are manufactured in climatic design "Y" and are intended for indoor use in:
    - Height above sea level is not more than 1000m;
    - Ambient temperature with the heat the air inside the switchgear - from -60 ° C to +50 ° C;
    - Relative humidity - 98% at 25 º C;
    - Environment explosive, without dust, corrosive gases and vapors in concentrations destroying coating metals and insulation;
    - Working position - any;
    - Equipment CT TZZ-4 U3 compliant immunity to electromagnetic interference to influence the magnetic field of industrial frequency;
    - Devices conform to standards of industrial radio Class A, Group 1;
    The manufacturer guarantees that the quality of the instrument current transformer TZZ-4 technical requirements specifications provided the customer terms and conditions of storage, transportation, installation, operation, and its specified operational documentation.

Photos TZZ-4

Сurrent transformer TZZ-4.
Сurrent transformer TZZ-4.
TZZ-4 drawing (front view).
TZZ-4 drawing (front view).
TZZ-4 drawing (side view).
TZZ-4 drawing (side view).


Яндекс цитирования