TOL-10-8 TOL-10-8 Current transformer TOL-10-8.
4.9 63
Current transformer TOL-10-8 (TOL108, TOL 10 8, TOL10-8, TOL10 8, TOL-10-8-2, TOL-10-8-II)
Priznacheny for installation in komplektnі rozpodіlnі pristroї (PKK) i used to signal peredachі vimіryuvalnoї іnformatsії vimіryuvalnim priladit i (subscriber) to attach Zahist i upravlіnnya for іzolyuvannya kіl vtorinnih z'єdnan Vid visokoї naprugi in elektrichnih installations zmіnnogo naprugi Strum on the class up to 10 kV 50 Hz frequency abo 60Hz $
Kіlkіst vtorinnih windings - 2;
Nomіnalna napruga - 10kV 11kV abo;
Working Naybіlsha napruga - 12kV;
Nomіnalny vtorinny Strum - 1A, 5A;
Nomіnalny Pervin Strum - 5A, 10A, 15A, 20A, 30A, 40A, 50A, 75A, 80A, 100A, 150A, 200A, 300A, 400A, 600A, 750A, 800A;
Claes tochnostі - 0,5, 0,5 S, 0,2, 0,2 S, 1; 5P, 10P.
Electrical measuring instruments
transformers industrial (T-0,66, TSh-0,66, KTPVSH and others)
current transformers

Price

on request

  include VAT

Product information updated 30 October 2022.

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Warranty:

12 months.

Warranty extension up to 5 years. 

Terms of delivery:

To all regions of the country, international delivery. 

Product information updated 30 October 2022.

Found cheaper?

Let us know. Our price is the best. 

Warranty:

12 months.

Warranty extension up to 5 years. 

Terms of delivery:

To all regions of the country, international delivery. 

Technical characteristics

Current transformer TOL-10-8 (TOL108, TOL 10 8, TOL10-8, TOL10 8, TOL-10-8-2, TOL-10-8-II)
 
Current transformer TOL-10-8 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-10-8:
 
The number of secondary windings - 2;
Rated voltage - 10kV or 11kV *;
Maximum operating voltage of the device current transformer TOL-10-8 - 12kV;
Rated frequency AC - 50Hz or 60Hz;
Rated secondary current of the current transformer unit TOL-10-8 - 1A, 5A;
Rated primary current - 5A, 10A, 15A, 20A, 30A, 40A, 50A, 75A, 80A, 100A, 150A, 200A, 300A, 400A, 600A, 750A, 800A;
Accuracy class of the instrument current transformer TOL-10-8:
- Secondary winding for measurement - 0,5; 0,5 S, 0,2; 0,2 S, 1;
- Secondary protection - 5P, 10P;
Rated secondary current transformer load device TOL-10-8 with a power factor cos φ = 0,8:
- Secondary winding for measurement - up to 30V · A **;
- Secondary protection - 15V · A;
Nominal safety factor of instruments for measuring the winding - 10-16;
A one-second thermal current instrument transformer current TOL-10-8:
- At rated primary current 5A - 0.4 kA
- At rated primary current 10A - 0.78 kA
- At rated primary current 15A - 1.2 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 - 5kA;
- At rated primary current 75A - 5.85 kA
- At rated primary current 80A - 6.23 kA
- At rated primary current 100 A - 10 kA;
- At rated primary current 150A - 20kA;
- At rated primary current 200A - 20kA;
- At rated primary current 300A, 400A - 40kA;
- At rated primary current 500A-2000A - 40kA;
Rated peak withstand current instrument transformer TOL-10-8:
- At rated primary current 5A - 1kA;
- At rated primary current 10A - 1.97 kA
- At rated primary current 15A - 3kA;
- 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 - 12.8 kA
- At rated primary current 75A - 14.7 kA
- At rated primary current 80A - 15.7 kA
- At rated primary current 100A - 25.5 kA
- At rated primary current 150A - 51kA;
- At rated primary current 200A - 51kA;
- At rated primary current 300A, 400A - 102kA;
- At rated primary current 500A-2000A - 102kA;
Test voltage instrument transformer current TOL-10-8:
- 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-10-8 are shown 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-10-8
 
Rated secondary current transformer load device TOL-10-8, VA
3
5
10
15
20
30
40
50
Ratio of transformation
Rated current ratio
5-300/5
27
20
12
10
7
5
4
3
80, 200, 400/5
27
21
14
10
8
6
4
3,5
600/5
26
21
15
10
9
7
5
4
750/5
27
23
16
13
10
8
6
5
800/5
28
23
17
10
11
8
6
5
 
The estimated value of the resistance of the secondary winding device CT TOL-10-8 DC are shown in Table 2;
 
Table 2 Calculated values ​​of the resistance of the secondary winding device CT TOL-10-8 DC
 
Rated current of the device current transformer TOL-10-8
Number of secondary winding
DC resistance of the windings
5A-300A
№ 1
#2
№ 3
0.096 Ohm
0.126 Ohm
-
80A, 400A
№ 1
#2
№ 3
0.16 Ohm
0.23 Ohm
-
500A
№ 1
#2
№ 3
0.1 Ohm
0.15 Ohm
-
600A
№ 1
#2
№ 3
0.13 Ohm
0.15 Ohm
-
750A
№ 1
#2
№ 3
0.152 Ohm
0.2 Ohm
-
800A
№ 1
#2
№ 3
0.16 Ohm
0.23 Ohm
-
 
Instrument current transformer TOL-10-8 for the differential protection are available on request;
General view of the device shown in Figure 1;
 
Figure 1: General view of the instrument current transformer TOL-10-8
 
TOL-10-8 - Current transformer - Drawing.
 
The transformers are manufactured in climatic design "T2" and "U2" 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 -45 ° C to +50 ° C for the performance of "U2" and from -10 ° C to +55 ° C for the performance of "T2";
- Environment explosive, without dust, reactive gases and vapors in concentrations destroy metal and insulation;
- Working position - any;
Earthquake-proof devices when exposed zemletraseny intensity of 8 points on the MSK-64 at the facility level above ground level up to 70m;
Instrument current transformer TOL-10-8 is designed for delivery to the AU, with class security for 3H-001 NP-97 and 2 seismic category for NP-031-01
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-10-8 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-10-8 technical requirements specifications provided the customer terms and conditions of storage, transportation, installation, operation, and its specified operational documentation.
Rate the product: TOL-10-8
Number of views: 915
Product rating: 4.3
Number of grades: 35
* rating and all product statistics are updated once a month; information is current as of 22 November 2022

Photos: TOL-10-8

TOL-10-8 transformer image.

TOL-10-8 transformer image.

TOL-10-8 transformer scheme.

TOL-10-8 transformer scheme.

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