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TOL-35-III-V-4

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171 690 UAH

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Current transformer TOL-35-III-V-4 (TOL35IIIV4, TOL 35 III V 4, TOL-35IIIV4, TOL 35IIIV4, TOL35-IIIV4, TOL35 IIIV4, TOL-35-3-5-4, TOL-35-III- V-IV)
 
Current transformer TOL-35-III-V-4 is designed to signal measurement data measurement devices, protection, automation, alarm and control circuits to isolate the secondary connections of high-voltage electrical installations AC.
Transformers are designed for outdoor use in open-voltage switchgear 35kV.
 
Technical characteristics of the instrument current transformers TOL-35-III-V-4:
 
The number of secondary windings:
- For measurements - 1 or 2;
- For protection - 3 or 2;
Rated voltage - 35kV;
Maximum operating voltage of the device current transformer TOL-35-III-V-4 - 40.5 kV;
Rated frequency AC - 50Hz or 60Hz;
Rated secondary current of the current transformer unit TOL-35-III-V-4 - 5A;
Rated primary current - 15A, 20A, 30A, 40A, 50A, 75A, 100A, 150A, 200A, 300A, 400A, 600A, 800A, 1000A, 1500A, 2000A, 3000A;
Accuracy class of the instrument current transformer TOL-35-III-V-4:
- Secondary winding for measurement - 0,2 S, 0,2, 0,5 S, 0,5;
- Secondary protection - 5P, 10P;
Rated secondary current transformer load device TOL-35-III-V-4, with a power factor:
- Cos φ = 0,8 - secondary winding for measurement - 30V · A;
- Cos φ = 0,8 - secondary protection - 30V · A;
Rated current ratio secondary instrument current transformer TOL-35-III-V-4 for the defense - 20;
Nominal safety factor of instruments for the measurement of the secondary winding - 5, 6;
Three-second thermal current instrument transformer current TOL-35-III-V-4:
- At rated primary current 15A - 1.0 kA
- At rated primary current 20A - 1.3 kA
- At rated primary current 30A - 1.8 kA
- At rated primary current 40A - 2.5 kA
- At rated primary current 50A - 2.9 kA
- At rated primary current 75A - 4.4 kA
- At rated primary current 100A - 5.9 kA
- At rated primary current 150A - 8.8 kA
- At rated primary current 200A - 12.9 kA
- At rated primary current 300A - 17kA;
- At rated primary current 400A - 24kA;
- At rated primary current 600A - 42kA;
- At rated primary current 800A - 56kA;
- At rated primary current 1000A - 52kA;
- At rated primary current 1500A - 56kA;
- At rated primary current 2000A - 57kA;
- At rated primary current 3000A - 57kA;
- At rated primary current 4000A - 57kA;
Rated peak withstand current instrument transformer TOL-35-III-V-4:
- At rated primary current 15A - 3kA;
- At rated primary current 20A - 4ka;
- At rated primary current 30A - 6kA;
- At rated primary current 40A - 8kA;
- At rated primary current 50A - 10kA;
- At rated primary current 75A - 15kA;
- At rated primary current 100A - 21kA;
- At rated primary current 150A - 31kA;
- At rated primary current 200A - 42kA;
- At rated primary current 300A - 63kA;
- At rated primary current 400A - 84kA;
- At rated primary current 600A - 143kA;
- At rated primary current 800A - 143kA;
- At rated primary current 1000A - 143kA;
- At rated primary current 1500A - 143kA;
- At rated primary current 2000A - 220kA;
- At rated primary current 3000A - 220kA;
- At rated primary current 4000A - 220kA;
The estimated value of the resistance of the secondary winding device CT TOL-35-III-V-4 DC are listed in Table 1;
 
Table 1 Calculated values ​​of the resistance of the secondary windings of the current transformer unit TOL-35-III-V-4 DC
 
Rated current of the device current transformer TOL-35-III-V-4 Accuracy class DC resistance of the windings
20A, 40A, 50A, 75A, 100A, 200A, 1000A

№ 1

#2

0.17 Ohm

0.27 Ohm
15A, 30A, 75A, 150A, 300A, 400A, 600A

№ 1

#2

0.22 Ohm

0.31 Ohm
800A

№ 1

#2

0.26 Ohm

0.42 Ohm
1500A

№ 1

#2

0.24 Ohm

0.39 Ohm
2000A

№ 1

#2

0.33 Ohm

0.47 Ohm
3000A

№ 1

#2

0.51 Ohm

0.73 Ohm
4000A

№ 1

#2

0.63 Ohm

0.95 Ohm
 
Calculated values ​​of the nominal current ratio of secondary winding for protection in terms of rated secondary load in accuracy classes 5P and 10P for the instrument current transformer TOL-35-III-V-4 are shown in Table 2;
 
Table 2 Calculated values ​​of the nominal current ratio of secondary winding for protection in terms of rated secondary load in accuracy classes 5P and 10P for the instrument current transformer TOL-35-III-V-4
 
Rated secondary current transformer load device TOL-35-III-V-4, V · A 3 5 10 15 20 30 40 50 60 75 100
Ratio of transformation Rated current ratio
20/5, 40/5, 50/5, 100/5, 200/5, 1000/5 67 56 41 32 26 20 15 13 11 9 7
15/5, 30/5, 75/5, 150/5, 300/5, 400/5, 600/5 61 50 28 30 25 20 15 12 10 8 6
800/5 64 53 42 35 29 23 18 15 13 11 8
1500/5 63 53 41 34 28 22 17 15 13 10 8
2000/5 56 46 37 31 27 21 17 14 12 10 8
3000/5 57 41 36 32 28 24 20 18 16 13 11
4000/5 47 27 25 23 21 19 17 15 13 12 10
 
General view of the device shown in Figure 1;
 
Figure 1: General view of the instrument current transformer TOL-35-III-V-4
 
TOL-35-III-V-4 - Current transformer - Drawing.
 
Dimensions and weight of the device current transformer TOL-35-III-V-4 are shown in Table 3;
 
Table 3 Dimensions and weight of the device current transformer TOL-35-III-V-4
 
Embodiment Rated primary current Dimensions. Weight
L1 L2 L3 L4 S
TOL-35-III-V-4 15A, 800A, 1000A, 1500A, 2000A, 3000A 630mm 652mm 512mm 552mm 12mm, 15mm, 20m 193kg
 
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 +50 ° C;
- Environment explosive, without dust, reactive gases and vapors in concentrations destroy metal and insulation;
- Working position - vertical;
- Internal insulation casting, heat resistance class "B" and flammability class FH (PG) 1;
- External insulation cast, thermal class «Y» and flammability class FH (PG) 3;
- Instruments earthquake resistant when exposed to earthquake intensity 8 points on the MSK-64 at the facility level above ground level up to 70m;
- Equipment designed for the total mechanical load from the wind at a speed of 40 m / s, with a wall thickness of glaze ice relief 20mm and hold no more than 500N (50kgs)
- 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 TOL-35-III-V-4 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 the device current transformer windings TOL-35-III-V-4 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 TOL-35-III-V-4 technical requirements specifications provided the customer terms and conditions of storage, transportation, installation, operation, and its specified operational documentation.

Photos: TOL-35-III-V-4

TOL-35-III-V-4 transformer image.
TOL-35-III-V-4 transformer image.
TOL-35-III-V-4 transformer scheme.
TOL-35-III-V-4 transformer scheme.


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