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TL-10M-4-II-2

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Current transformer TL-10M-4-II-2 (TL10M4II2, TL 10M 4 II 2, TL10M-4-II-2, TL10M 4 II 2, TL 10M4II2, TL-10M4II2, TL-10M-4-2-2, TL-10M-IV-II-II)
 
Current transformer TL-10M-4-II-2 is designed for installation in complete switchgear (KRU) and serves to signal measurement information instrumentation and (or) protection and control, to isolate the circuits of secondary compounds of high-voltage electrical installations AC voltage class up to 10kV 50Hz or 60Hz.
Technical characteristics of the instrument current transformer TL-10M-4-II-2:
 
The number of secondary windings - 4;
Rated voltage - 10kV or 11kV;
Maximum operating voltage of the device current transformer TL-10M-4-II-2 - 12kV;
Rated frequency AC - 50Hz or 60Hz;
Rated secondary current of the current transformer unit TL-10M-4-II-2 - 5A;
Rated primary current - 40A, 50A, 75A, 80A, 100A, 150A, 200A;
Accuracy class of the instrument current transformer TL-10M-4-II-2:
- Secondary winding for measurement - 0,5; 0,5 S, 0,2; 0,2 S;
- Secondary protection - 5P, 10P *;
Rated secondary current transformer load device TL-10M-4-II-2, with a power factor:
- Cos φ = 1 - secondary winding for measurement - 1 V · A-2, 5 V · A;
- Cos φ = 0,8 - secondary winding for measurement - 3V-50V · A · A;
- Cos φ = 0,8 - secondary protection - 3V-30V · A · A;
Rated current ratio of secondary winding for protection - 2-30;
Nominal factor of safety devices for the secondary current transformer measuring device TL-10M-4-II-2 - 2-30;
Contact diameter primary - 36mm;
A one-second thermal current instrument current transformer TL-10M-4-II-2:
- At rated primary current 40A - 5kA;
- At rated primary current 50A - 10kA;
- At rated primary current 75A - 10kA;
- At rated primary current 80A - 10kA;
- At rated primary current 100A - 20kA;
- At rated primary current 150A - 20kA;
- At rated primary current 200A - 31.5 kA
Rated peak withstand current transformer unit TL-10M-4-II-2:
- At rated primary current 40A - 12.8 kA
- At rated primary current 50A - 25.5 kA
- At rated primary current 75A - 25.5 kA
- At rated primary current 80A - 25.5 kA
- At rated primary current 100A - 51kA;
- At rated primary current 150A - 51kA;
- At rated primary current 200A - 81kA;
The estimated value of the resistance of the secondary winding current transformer unit TL-10M-4-II-2 DC are listed in Table 1;
 
Table 1 Calculated values ​​of the resistance of the secondary windings of the current transformer unit TL-10M-4-II-2 DC
 
Rated current of the device current transformer TL-10M-4-II-2
Accuracy class
DC resistance of the windings
5A-75A, 100A-300A
0,2 S, 0,2, 0,5 S
0,5
5P, 10P
0.14 kW
0.16 Ohm
0.22 Ohm
5A-200A
0,2 S, 0,2, 0,5 S
0,5
5P, 10P
-
-
-
40A, 80A, 200A
0,2 S, 0,2, 0,5 S
0,5
5P, 10P
-
-
-
5A, 30A, 50A, 75A, 100A, 150A, 300A
0,2 S, 0,2, 0,5 S
0,5
5P, 10P
-
-
-
300A
0,2 S, 0,2, 0,5 S
0,5
5P, 10P
-
-
-
80A, 400A
0,2 S, 0,2, 0,5 S
0,5
5P, 10P
0.19 kW
0.21 Ohm
0.3 Ohm
 
Instrument current transformer TL-10M-4-II-2 for the differential protection is available on request;
General view of the device shown in Figure 1;
 
Figure 1: General view of the instrument current transformer TL-10M-4-II-2
 
TL-10M-4-II-2 - Current transformer - Drawing.
 
Dimensions and weight of the device current transformer TL-10M-4-II-2 are shown in Table 2;
 
Table 2: Dimensions and weight of the device current transformer TL-10M-4-II-2
 
Rated primary current
Dimensions.
Weight
B
D
L
{0}L{/0}{1}1{/1}
H
5A-400A
40mm
36mm
84mm
27.5 mm
27mm
29kg
 
The transformers are manufactured in climatic design "UHL" and are intended for indoor use in:
Height above the sea level - no more than 1000 m.
- Ambient temperature with the heat the air inside the switchgear - from -60 ° C to +55 ° C;
- Environment explosive, without dust, reactive gases and vapors in concentrations destroy metal and insulation;
- Working position - any;
- Instruments earthquake resistant when exposed to earthquake intensity 8 points on the MSK-64 at the facility level above ground level up to 70m;
- Appliances intended to be sold in AS, with class security for 3H-001 NP-97 and 2 seismic category for NP-031-01;
- Devices comply with immunity to electromagnetic interference to influence the magnetic field of industrial frequency;
- Equipment CT TL-10M-4-II-2 satisfy the standards of industrial radio class A, Group 1;
In current transformers may be used to account for the secondary windings, Class 0,2 S and 0,5 S with the value of the secondary load below 25% of nominal;
The minimum weight for a current transformer winding device TL-10M-4-II-2 accuracy classes 0,2 S and 0,5 S is 1B · A;
The certificate on the current transformers with secondary windings for accounting accuracy classes 0,2 S and 0,5 S indicates the measured current and the angular error at rated secondary burden 1B · A;
Can manufacture transformers with different transformation ratios of secondary windings;
The manufacturer guarantees that the quality of the instrument current transformer TL-10M-4-II-2 technical requirements specifications provided the customer terms and conditions of storage, transportation, installation, operation, and its specified operational documentation.

Photos: TL-10M-4-II-2

TL-10M-4-II-2 transformer image.
TL-10M-4-II-2 transformer image.
TL-10M-4-II-2 transformer scheme.
TL-10M-4-II-2 transformer scheme.


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