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TOP-0,66-I

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Current transformer TOP-0,66-I (TOP-0,66-1, TOP0,66I, TOP 0,66 I, TOP0,66-I, TOP0,66 I, TOP-0,66I, TOP 0,66I)
 
Current transformer TOP-0,66-I intended to send a signal measurement information instrumentation installations in AC 50Hz or 60Hz with rated voltage up to 0.66 kV.
 
Technical characteristics of the instrument current transformers TOP-0,66-I:
 
Accuracy class - 0,5; 0,5 S, 0,2; 0,2 S, 1;
Number of windings - 1;
Rated current of the device CT TOP-0,66-I - 1A, 5A, 10A, 15A, 20A, 30A, 40A, 50A, 75A, 80A, 100A, 150A;
Rated secondary current - 1A, 5A;
Rated primary current, rated secondary burden and accuracy class of the instrument current transformer TOP-0,66-I are given in Table 1;
 
Table 1 Rated primary current, rated secondary burden and accuracy class of the instrument current transformer TOP-0,66-I
 
Rated primary current
Rated secondary burden secondary at cosφ
Accuracy class
0.8 (inductive load-active)
1
1A, 5A, 10A, 15A, 20A, 30A, 40A, 50A, 75A, 80A, 100A, 150A
3 B · A · A 5V, 10V · A
· A 1B, 2B · A, 2.5 V · A
0,2 S, 0,5 S, 0,5, 1
15 V · A
-
0.5 *, 1
40V, 80A
-
· A 1B, 2B · A, 2.5 V · A
0,2 S, 0,5 S, 0,5, 1
· A 3V, 5V · A
-
0,2
 
Rated primary current and the highest primary current working device CT TOP-0,66-I are given in Table 2;
 
Table 2 Primary rated current and the largest primary current working device CT TOP-0,66-I
 
Parameter's name
Parameter value
Rated primary current
1A
5A
10A
15A
20A
30A
40A
50A
Maximum operating current of primary
1A
5A
10A
16A
20A
32A
40A
50A
Rated primary current
75A
80A
100A
150A
200A
300A
400A
500A
Maximum operating current of primary
80A
80A
100A
160A
200A
320A
400A
500A
Rated primary current
600A
750A
800A
1000A
1200A
1500A
2000A
 
Maximum operating current of primary
630A
800A
800A
1000A
1250A
1600A
2000A
 
 
The coefficients of safety devices CT TOP-0,66-I according to the rated primary current, rated secondary burden and accuracy class are shown in Table 3;
 
Table 3 The coefficients security appliance CT TOP-0,66-I according to the rated primary current, rated secondary burden and accuracy class
 
Rated primary current
Rated secondary current
Accuracy class
Rated safety factor at rated secondary burden
1B · A
2B · A
2,5 V · A
3B · A
5 V · A
10 V · A
1A, 5A, 10A, 15A, 20A, 30A, 50A, 75A, 100A, 150A
1A
0,2 S
9
7
6
5.5
4
3
40A, 80A
9
7
6
6
4.5
3
20A, 40A, 100A
0,5 S
7
5
5
4.5
3,5
-
1A, 5A, 10A, 15A, 30A, 50A, 75A, 150A
7
5
4
4
3
-
1A, 5A, 10A, 20A, 40A, 50A, 100A
0.5
16
11
10
9
7
-
40A, 80A
0,2
20
15
13
12
9
-
1A, 5A, 10A, 15A, 20A, 30A, 40A, 50A, 75A, 80A, 100A, 150A
5A
0,2 S
7
6
5
5
4
3
0,5 S
14
11
10
14
9
-
1A, 5A, 10A, 20A, 40A, 50A, 100A
0.5
13
10
9
10,5
7
6
 
Calculated values ​​of the DC resistance of the windings for instrument current transformer TOP-0,66-I are given in Table 4
 
Table 4 Calculated values ​​of winding resistance to direct current for the device CT TOP-0,66-I
 
Rated primary current
Secondary resistance to direct current at the rated secondary current
1A
5A
for accuracy classes
0.5
0,2
0,5 S
0,2 S
0.5
0,5 S
0,2 S
1A, 5A, 10A, 15A, 30A, 50A, 75A, 150A
0.5 Ohm
-
0.048 Ohm
-
1A, 5A, 10A, 20A, 30A, 40A, 50A, 100A
0.66 Ohm *
1A, 5A, 10A, 15A, 20A, 30A, 50A, 75A, 100A, 150A
-
1.01 Ohm **
-
0.074 Ohm
40A, 80A
1.08 Ohm
-
0.08 Ohm
 
Note. * - At rated secondary load 5V · A ** - at rated secondary load 10V · A;
 
The main advantages of instrument transformers current TOP-0,66-I are given below;
Currently transformers produced at full standard range of rated primary current, while keeping accuracy classes as 0.5 and 0.2, and 0,5 S and 0,2 S, which allows to use them widely in computer-aided control and metering AMR ;
Devices CT TOP-0,66-I have several degrees of protection from unauthorized access:
- Transparent protective cover for sealing, protecting the secondary contacts, rating plate and the stamp, and ensures the safety of operation.
- Protective sticker that when trying to parse the transformer is broken, leaving visible signs of tampering;
The modern design and design tool CT TOP-0,66-I allow the use of transformers with primary cable or bus and configuration of various sections, as well as install them in any position;
Availability of built-Cu coated with tin, it allows you to connect both copper and aluminum conductors;
Hazard CT TOP-0,66-I provides a self-extinguishing plastic housing with high insulation class;
Shells themselves have three different colors - yellow, green and red, which is a common phase segregated marked;
Transformers are packaged in easy-to-consumer bottles, three pieces;
Devices CT TOP-0,66-I are absolute counterparts transformers type TOP-0 ,66-I;
Mount transformer by using the reference tabs or DIN-rail;
The new device CT TOP-0,66-I has a convenient mounting potential output, which is in a sealable junction box;
The use of products of modern terminals can quickly be assembled secondary circuits;
 
Dimensions of the device CT TOP-0,66-I are shown in Figure 1;
 
Figure 1 Dimensions of the device CT TOP-0,66-I
 
TOP-0,66-I - Current transformer - Drawing.
 
Weight - 0.75 kg;
One-minute test voltage instrument transformer current TOP-0,66-I-frequency - 3 kV;
Transformers of accuracy class 0,2; 0,5; 0,2 S and 0,5 S used in accounting schemes customer calculations, accuracy class 1.0 - in schemes of measurement;
The transformers are manufactured in model "U" or "T", are designed to operate under the following conditions:
Height above the sea level - no more than 1000 m.
Ambient temperature
- In operation - from -45 ° C to +50 ° C;
- Transport and storage - from -50 ° C to +50 ° C;
- Environment explosive, without dust, reactive gases and vapors in concentrations destroy metal and insulation;
- Working position - any;
Primary bus unit CT TOP-0,66-I copper, tin-plated;
Warranty period - 8 years from the date of entry into operation of the transformer, but not more than 8.5 years from the date of shipment from the factory;
Service life CT TOP-0,66-I - 30;
The unit is equipped with protective transparent cover for separate sealing of secondary findings;
Minimum permissible load current transformer unit TOP-0,66-I for the windings of accuracy 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;
The manufacturer guarantees that the quality of the instrument current transformer TOP-0,66-I to the technical requirements specifications provided the customer terms and conditions of storage, transportation, installation, operation, and its specified operational documentation.

Photos: TOP-0,66-I

TOP-0,66-I transformer scheme.
TOP-0,66-I transformer scheme.


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