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TL-10M-4-II-3

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Current transformer TL-10M-4-II-3 (TL10M4II3, TL 10M 4 II 3, TL10M-4-II-3, TL10M 4 II 3, TL 10M4II3, TL-10M4II3, TL-10M-4-2-3, TL-10M-IV-II-III)
 
Current transformer TL-10M-4-II-3 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-3:
 
The number of secondary windings - 4;
Rated voltage - 10kV or 11kV;
Maximum operating voltage of the device current transformer TL-10M-4-II-3 - 12kV;
Rated frequency AC - 50Hz or 60Hz;
Rated secondary current of the current transformer unit TL-10M-4-II-3 - 5A;
Rated primary current - 300A, 400A, 600A, 750A, 800A, 1000A, 1500A, 2000A;
Accuracy class of the instrument current transformer TL-10M-4-II-3:
- 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-3 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-3 - 2-30;
Contact diameter primary - 36mm;
A one-second thermal current instrument current transformer TL-10M-4-II-3:
- At rated primary current 300A - 40kA;
- At rated primary current 400A - 40kA;
- At rated primary current 600A - 40kA;
- At rated primary current 750A - 40kA;
- At rated primary current 800A-1500A - 40kA;
- At rated primary current 2000A - 40kA;
Rated peak withstand current transformer unit TL-10M-4-II-3:
- At rated primary current 300A - 102kA;
- At rated primary current 400A - 102kA;
- At rated primary current 600A - 102kA;
- At rated primary current 750A - 102kA;
- At rated primary current 800A-1500A - 102kA;
- At rated primary current 2000A - 102kA;
The estimated value of the resistance of the secondary winding current transformer unit TL-10M-4-II-3 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-3 DC
 
Rated current of the device current transformer TL-10M-4-II-3
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
600A
0,2 S, 0,2, 0,5 S
0,5
5P, 10P
0.14 kW
0.16 Ohm
0.22 Ohm
750A
0,2 S, 0,2, 0,5 S
0,5
5P, 10P
0.18 kW
0.2 Ohm
0.22 Ohm
800A
0,2 S, 0,2, 0,5 S
0,5
5P, 10P
0.19 kW
0.21 Ohm
0.3 Ohm
1000A
0,2 S, 0,2, 0,5 S
0,5
5P, 10P
0.24 kW
0.26 Ohm
0.37 Ohm
1200A
0,2 S, 0,2, 0,5 S
0,5
5P, 10P
0.29 kW
0.32 Ohm
0.45 Ohm
1500A
0,2 S, 0,2, 0,5 S
0,5
5P, 10P
0.38 kW
0.35 Ohm
0.48 Ohm
2000A
0,2 S, 0,2, 0,5 S
0,5
5P, 10P
0.51 kW
0.46 Ohm
0.64 Ohm
 
Instrument current transformer TL-10M-4-II-3 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-3
 
TL-10M-4-II-3 - Current transformer - Drawing.
 
Dimensions and weight of the device current transformer TL-10M-4-II-3 are shown in Table 2;
 
Table 2: Dimensions and weight of the device current transformer TL-10M-4-II-3
 
Rated primary current
Dimensions.
Weight
B
D
L
{0}L{/0}{1}1{/1}
H
300A, 400A
40mm
55mm
84mm
27.5 mm
27mm
31kg
600A-1000A
40mm
55mm
95mm
33mm
34mm
31kg
1200A-2000A
60mm
55mm
95mm
33mm
40mm
31kg
 
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-3 conform to 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-3 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-3 technical requirements specifications provided the customer terms and conditions of storage, transportation, installation, operation, and its specified operational documentation.

Photos: TL-10M-4-II-3

TL-10M-4-II-3 transformer image.
TL-10M-4-II-3 transformer image.
TL-10M-4-II-3 transformer scheme.
TL-10M-4-II-3 transformer scheme.


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