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TNSH-0,66

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Current transformer TNSH-0,66 (TNSH0,66, TNSH 0,66)
 
Current transformer TNSH-0,66 is a signal measurement information instrumentation in plants AC 50Hz or 60Hz with rated voltage up to 0.66 kV.
 
Technical characteristics of the instrument current transformers TNSH-0,66:
 
Accuracy class - 10P;
Number of windings - 1;
Maximum operating voltage - 0.8 kV;
Rated current of the device CT TNSH-0,66 - 15000A, 25000A;
Maximum operating current primary - 2000A, 3200A, 4000A, 5000A;
Rated secondary current of the current transformer unit TNSH-0,66 - 5A;
Rated secondary burden at cosφ = 0,8 - 50 V · A;
Multiplicity three seconds thermal current device CT TNSH-0,66 - 2.2;
Rated current ratio - 2;
The calculated values ​​of the resistance unit CT TNSH-0,66, referred to a temperature of 20 º C are shown in Table 1;
 
Table 1 Calculated values ​​of resistance of the device CT TNSH-0,66, referred to a temperature of 20º C
 
Rated primary current
Secondary resistance DC
15000A
3.1 Ohm
25000A
4.2 Ohm
 
Dimensions and weight of the device CT TNSH-0,66 are shown in Figure 1 and Table 2;
 
Table 2: Dimensions and weight of the device CT TNSH-0,66
 
Rated primary current
Dimensions.
Weight
A
A1
A2
H
h1
L
L1
B
B1
C
15000A
320
mm
120
mm
46
mm
48
0mm
370
mm
366
mm
115
mm
208
mm
166
mm
70
mm
52kg
25000A
380
mm
170
mm
70
mm
770
mm
610
mm
498
mm
170
mm
236
mm
180
mm
100
mm
170kg
 
Figure 1 Dimensions of the device CT TNSH-0,66
 
TNSH-0,66 - Current transformer - Drawing.
 
The housing CT TNSH-0,66, is made ​​of self-extinguishing hard inflammable materials;
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 ("I»), -10 ° C to +55 ° C ("T2");
- 80% relative humidity at 25 º C;
- Environment explosive, without dust, reactive gases and vapors in concentrations destroy metal and insulation;
- Working position - any;
Primary bus unit CT TNSH-0,66 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;
The warranty applies to devices CT TNSH-0,66, after January 1, 2005;
Service life - 30 years;
Devices CT TNSH-0,66 set of protective transparent cover for separate sealing of secondary findings;
In transformers may be used to account for the secondary windings, accuracy classes 0,2 S and 0,5 S with the value of the secondary load below 25% of nominal;
Minimum permissible load current transformer unit TNSH-0,66 for winding 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;
The manufacturer guarantees that the quality of the instrument current transformer TNSH-0,66 technical requirements specifications provided the customer terms and conditions of storage, transportation, installation, operation, and its specified operational documentation.

Photos: TNSH-0,66

TNSH-0,66 transformer image.
TNSH-0,66 transformer image.
TNSH-0,66 transformer scheme.
TNSH-0,66 transformer scheme.


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