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TOL-10-I-3

15 325 RUB
18 390 UAH

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For order is possible effectively delivery of any quantity.
Current transformer TOL-10-I-3 (TOL10I3, TOL 10 I 3, TOL10-I-3, TOL10 3 I, TOL10I-3, TOL10I 3, TOL-10-1-3, TOL-10-I-III)
 
Current transformer TOL-10-I-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 transformers TOL-10-I-3:
 
The number of secondary windings - 2;
Rated voltage - 10kV or 11kV *;
Maximum operating voltage of the device current transformer TOL-10-I-3 - 12kV;
Rated frequency AC - 50Hz or 60Hz;
Rated secondary current of the current transformer unit TOL-10-I-3 - 1A, 5A;
Rated primary current - 30A, 40A, 50A, 75A, 80A, 100A, 150A;
Accuracy class of the instrument current transformer TOL-10-I-3:
- 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-I-3 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-I-3:
- At rated primary current 30A - 3.2 kA
- At rated primary current 40A - 4.3 kA
- At rated primary current 50A - 8kA;
- At rated primary current 75A - 20kA;
- At rated primary current 80A - 20kA
- At rated primary current 100A - 20kA;
- At rated primary current 150A - 20kA;
Rated peak withstand current instrument transformer TOL-10-I-3:
- At rated primary current 30A - 8kA;
- At rated primary current 40A - 10kA;
- At rated primary current 50A - 20kA;
- At rated primary current 75A - 51kA;
- At rated primary current 80A - 51kA
- At rated primary current 100A - 51kA;
- At rated primary current 150A - 51kA;
Test voltage instrument transformer current TOL-10-I-3:
- 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-I-3 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-I-3
 
Rated secondary current transformer load device TOL-10-I-3, 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
 
The estimated value of the resistance of the secondary winding device CT TOL-10-I-3 DC are shown in Table 2;
 
Table 2 Calculated values ​​of the resistance of the secondary winding device CT TOL-10-I-3 DC
 
Rated current of the device current transformer TOL-10-I-3
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
-
 
Instrument current transformer TOL-10-I-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 TOL-10-I-3
 
TOL-10-I-3 - Current transformer - Drawing.
 
Dimensions of the device current transformer TOL-10-I-3 are shown in Table 3;
 
Table 3: Dimensions of the device current transformer TOL-10-I-3
 
Rated primary current
B
H
h
30A, 40A, 50A, 75A, 80A, 100A, 150A
40mm
224mm
18mm
 
Weight - 20 kg ± 1 kg;
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-I-3 is intended for delivery to the speakers, meet safety class 3H for NP-001-97 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-I-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 TOL-10-I-3 technical requirements specifications provided the customer terms and conditions of storage, transportation, installation, operation, and its specified operational documentation.

Photos: TOL-10-I-3

TOL-10-I-3 transformer image.
TOL-10-I-3 transformer image.
TOL-10-I-3 transformer scheme.
TOL-10-I-3 transformer scheme.


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