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TOL-35-III-III

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162 840 UAH

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Current transformer TOL-35-III-III (TOL35IIIII, TOL 35 IIIII, TOL-35IIIII, TOL 35IIIII, TOL35-III-III, TOL35 IIIII, TOL-35-3-3)
 
Current transformer TOL-35-III-III 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.
The device has a modification CT TOL-35-III-III-1.
 
Technical characteristics of the instrument current transformers TOL-35-III-III:
 
The number of secondary windings:
- For measurements - 1;
- For protection - 2;
Rated voltage - 35kV;
Maximum operating voltage of the device current transformer TOL-35-III-III - 40,5 kV;
Rated frequency AC - 50Hz or 60Hz;
Rated secondary current of the current transformer unit TOL-35-III-III - 1A, 5A;
Rated primary current - 500A, 1000A, 1500A, 2000A, 3000A;
Accuracy class of the instrument current transformer TOL-35-III-III:
- 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-III at a power factor:
- Cos φ = 0,8 - secondary winding for measurement - 30V · A;
- Cos φ = 0,8 - secondary protection - 50V · A;
Rated current ratio secondary instrument current transformer TOL-35-III-III for protection - 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-III:
- At the rated secondary current of 5A:
- At rated primary current 500A - 49kA;
- At rated primary current 1000A - 49kA;
- At rated primary current 1500A - 49kA;
- At rated primary current 2000A - 57kA;
- At rated primary current 3000A - 57kA;
- At the rated secondary current of 1A:
- At rated primary current 1000A - 49kA;
- At rated primary current 1500A - 49kA;
- At rated primary current 2000A - 57kA;
- At rated primary current 3000A - 57kA;
Rated peak withstand current instrument transformer TOL-35-III-III:
- At the rated secondary current of 5A:
- At rated primary current 500A - 125kA;
- At rated primary current 1000A - 125kA;
- At rated primary current 1500A - 125kA;
- At rated primary current 2000A - 145kA;
- At rated primary current 3000A - 145kA;
- At the rated secondary current of 1A:
- At rated primary current 1000A - 125kA;
- At rated primary current 1500A - 125kA;
- At rated primary current 2000A - 145kA;
- At rated primary current 3000A - 145kA;
The estimated value of the resistance of the secondary winding device CT TOL-35-III-III 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-III DC
 
Rated current of the device current transformer TOL-35-III-III
Accuracy class
DC resistance of the windings
at the rated secondary current of 5A
500A, 1000A
№ 1
#2
0.24 Ohm
0.46 Ohm
1500A
№ 1
#2
0.36 Ohm
0.58 Ohm
2000A
№ 1
#2
0.46 Ohm
0.8 Ohm
3000A
№ 1
#2
0.7 Ohm
1.09 Ohm
at the rated secondary current of 1A
1000A
№ 1
#2
6.62 Ohm
9.92 Ohm
1500A
№ 1
#2
8.11 Ohm
15.8 Ohm
2000A
№ 1
#2
12 Ohm
20.1 Ohm
3000A
№ 1
#2
18.5 Ohm
25.1 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-III 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-III
 
Rated secondary current transformer load device TOL-35-III-III, V · A
3
5
10
15
20
30
40
50
60
75
100
Ratio of transformation
Rated current ratio
500/5, 1000/5
87
74
56
45
38
28
23
20
16
13
10
1500/5
77
64
51
4
37
29
23
20
17
14
11
2000/5
70
57
47
40
35
28
23
20
17
15
11
3000/5
60
4
38
34
31
26
22
20
17
15
12
500/1, 1000/1
79
67
52
4
36
27
22
18
16
13
10
1500/1
71
60
49
41
35
28
23
20
17
14
11
2000/1
63
53
44
38
34
27
23
20
17
14
11
3000/1
58
40
35
32
29
25
21
19
17
14
12
 
General view of the device shown in Figure 1;
 
Figure 1: General view of the instrument current transformer TOL-35-III-III
 
TOL-35-III-III - Current transformer - Drawing.
 
Dimensions and weight of the device current transformer TOL-35-III-III are shown in Table 3;
 
Table 3 Dimensions and weight of the device current transformer TOL-35-III-III
 
Embodiment
Rated primary current
Dimensions.
Weight
L1
L2
L3
L4
S
TOL-35-III-III
500A, 1000A, 1500A, 2000A, 3000A
630mm
652mm
512mm
552mm
12mm, 15mm, 20m
193kg
TOL-35-III-III-1
500A, 1000A, 1500A, 2000A, 3000A
540mm
598mm
494mm
470mm
 
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-III 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-III precision class 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-III technical requirements specifications provided the customer terms and conditions of storage, transportation, installation, operation, and its specified operational documentation.

Photos: TOL-35-III-III

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


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