Electrical measuring instruments >> transformers industrial >> current transformers >> 10kV voltage class

TOL-10-2

13 113 RUB
15 735 UAH

Online prices include VAT.

For order is possible effectively delivery of any quantity.
Current transformer TOL-10-2 (TOL102, TOL 10 2, TOL10-2, TOL10 2, TOL-102, TOL 102, TOL-10-II, TOL-10-11)
 
Current transformer TOL-10-2 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 class voltages up to 10kV 50Hz or 60Hz.
Technical characteristics of the instrument current transformers TOL-10-2
 
The number of secondary windings - 2;
Rated voltage - 10kV or 11kV;
Maximum operating voltage of the device current transformer TOL-10-2 - 12kV;
Rated frequency AC - 50Hz or 60Hz;
Rated secondary current of the current transformer unit TOL-10-2 - 1A, 5A;
Rated primary current - 10A, 20A, 30A, 40A, 50A, 100A, 150A, 200A, 300A, 400A, 600A, 800A, 1000A, 1500A, 2000A, 2500A, 3000A;
Accuracy class of the instrument current transformer TOL-10-2
- Secondary winding for measurement - 0,5; 0,5 S, 0,2; 0,2 S;
- Secondary protection - 10P *;
Rated secondary current transformer load device TOL-10-2 with a power factor cos φ = 0,8:
- Secondary winding for measurement - up to 30V · A **;
- Secondary protection - 15V · A;
Rated current ratio secondary instrument current transformer TOL-10-2 for protection:
- At rated primary current 10A-2000A - not less than 10A;
- At rated primary current 2500A-3000A -;
A one-second thermal current instrument transformer current TOL-10-2
- At rated primary current 10A - 0.78 kA
- At rated primary current 20A - 1.56 kA
- At rated primary current 30A - 2.5 kA
- At rated primary current 40A - 3.0 kA
- At rated primary current 50A - 4.9 kA
- At rated primary current 100A - 9.7 kA
- At rated primary current 150A - 12.5 kA
- At rated primary current 200A - 17.5 kA
- At rated primary current 300A-2000A - 31.5 kA
- At rated primary current 2500A, 3000A - 61kA;
Rated peak withstand current instrument transformer TOL-10-2
- At rated primary current 10A - 1.97 kA
- At rated primary current 20A - 3.93 kA
- At rated primary current 30A - 6.25 kA
- At rated primary current 40A - 7.56 kA
- At rated primary current 50A - 17.5 kA
- At rated primary current 100A-200A - 52kA;
- At rated primary current 300A-2000A - 100 kA;
- At rated primary current 2500A, 3000A - 152.5 kA
Test voltage instrument transformer current TOL-10-2
- One-minute power frequency - 42kV;
- Lightning impulse full - 75Sqr;
Note:
*) In accordance with the order can be delivered accuracy class 5P.
**) Specified in the order;
 
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-10-2 are given in Table 1;
 
Table 1 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-10-2
 
Rated secondary current transformer load device TOL-10-2, VA
3
5
10
15
20
30
40
50
Ratio of transformation
Rated current ratio
50-150, 300/5
27
20
12
10
7
5
4
3
200, 400/5
27
21
14
10
8
6
4
3,5
600/5
26
21
15
10
9
7
5
4
800/5
28
23
17
10
11
8
6
5
1000/5
20
17
13
10
9
7
5
5
1500/5
21
18
14
10
10
8
6
5
 
The estimated value of the resistance of the secondary winding device CT TOL-10-2 DC are shown in Table 2;
 
Table 2 Calculated values ​​of the resistance of the secondary winding device CT TOL-10-2 DC
 
Rated current of the device current transformer TOL-10-2
Number of secondary winding
DC resistance of the windings
Number of secondary windings
2
10A, 300A, 600A
№ 1
#2
№ 3
0.19 Ohm
0.26 Ohm
-
400A, 800A
№ 1
#2
№ 3
0.25 Ohm
0.35 Ohm
-
1000A
№ 1
#2
№ 3
0.29 Ohm
0.42 Ohm
-
1500A
№ 1
#2
№ 3
0.43 Ohm
0.62 Ohm
-
2000A
№ 1
#2
№ 3
0.64 Ohm
0.73 Ohm
-
 
Instrument current transformer TOL-10-2 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 TOL-10-2
 
TOL-10-2 - Current transformer - Drawing.

The transformers are manufactured in climatic design "T" and "NF" location category 2.1 and designed 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 for execution "UHL 2.1" and from -10 ° C to +55 ° C for the performance of "T2.1";
- Environment explosive, without dust, reactive gases and vapors in concentrations destroy metal and insulation;
- Working position - any;
Instrument current transformer TOL-10-2 is available with a secondary winding for measurement and a secondary winding for protection;
Transformers rated at 1000A and 1500A can be produced with two secondary windings for protection;
Instrument current transformer TOL-10-2 is equipped with protective transparent cover for separate sealing of secondary findings;
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-10-2 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 TOL-10-2 technical requirements specifications provided the customer terms and conditions of storage, transportation, installation, operation, and its specified operational documentation.

Photos: TOL-10-2

TOL-10-2 transformer image.
TOL-10-2 transformer image.
TOL-10-2 transformer scheme.
TOL-10-2 transformer scheme.


Яндекс цитирования