Current transformer TI-250
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  • Current transformer TI-250
  • Current transformer TI-250
  • Current transformer TI-250

Current transformer TI-250

TI-250-5, 5908312594987

250/5 transformer. 5 VA.
The current transformer is used for proportional change of high current strength to lower values, adapted to the measuring range of control and measuring devices.

Functioning
The cable with the measured current passes through the main opening of the transformer (P1 / P2), which is equivalent to one coil of the primary winding. The S1 and S2 terminals of the secondary windings are connected to the terminals of the measuring circuit of the control or measuring device.
The ratio of the strength of the currents in both windings is a constant value and is called the current ratio: IPn/ISn=N, where the IPn is rated primary current; ISn - rated secondary current; N - the value of the transmission. The value of the current flowing through the primary winding can be determined from the value of the current flowing through the secondary winding: ISm*N=IPm, wherein ISm - measured primary current; IPm - measured secondary current.
        

Please note!
It is recommended to connect the secondary circuit by a wire with diameter of not less than 2.5 mm².
It is recommended to ground the S2 terminal.
It is prohibited to disconnect the secondary circuit during operation of the transformer (the high voltage that may appear pose a risk of electric shock to the people or damage to the device).


     

 

TI-250-5
Type
single-phase
Building
with close core
Transmission lp / ls
250/5
Class
0,5
Power [VA]
5 VA
Frequency
50÷60 Hz
Maximum working voltage
0,66 kV AC
Standard number
IEC 60044-1
Nominal secondary current Is
5 A
Isolation breakdown voltage
3 kV/1 min.
Weight
0,235 kg
Security factor
FS ˂ 5
Connection S1 / S2
zaciski śrubowe 4 mm²
Opening dimensions P1 / P2 - A1 / A2 / A3xB; C [mm]
30 mm/25 mm/20 mm x 10 mm; Ø22 mm
Dimensions WxHxD [mm]
61 mm × 81 mm × 34 mm
Tightening torque
0,5 Nm
Working temperature
-5÷40°C
Mounting position
vertical/horizontal
Assembly
blackboard / busway
Ingress Protection Marking
IP20







type Ip/Is class power  
[VA]		 hole dimensions P1/P2
A1/A2/A3×B; C [mm]		 dimensions
W×H [mm]		 weight
[kg]
TI-30*  30/5  1 2,5 Ø22 44×67×30 0,135
TI-40 40/5 1 1 Ø22  44×67×30 0,135
TI-50 50/5 1 1,5 Ø22  44×67×30 0,135
TI-60 60/5 1 1,5 Ø22  44×67×30 0,135
TI-75 75/5  1 1,5 Ø22 44×67×30 0,135
TI-80 80/5 1 1,5 Ø22  44×67×30 0,135
TI-100  100/5  0,5
 2,5 30/25/20×10; Ø22 61×81×34  0,235
TI-150 150/5 0,5 2,5 30/25/20×10; Ø22  61×81×34  0,235
TI-200 200/5 0,5 5,0 30/25/20×10; Ø22  61×81×34  0,235
TI-250 250/5 0,5 5,0 30/25/20×10; Ø22  61×81×34  0,235
TI-300 300/5  0,5 5,0 30/25/20×10; Ø22 61×81×34  0,235
TI-400 400/5  0,5 10 40/30/ - ×10; Ø30  75×99×40  0,305
TI-600 600/5 0,5 10 40/30/ - ×10; Ø30  75×99×40  0,305
TI-1000 1000/5  0,5 10 62/52/38×21; Ø46 126×102×62 -
TI-1250 1250/5 0,5 10 62/52/38×21; Ø46  126×102×62 -
TI-1600 1600/5  0,5 10 62/52/38×21; Ø46 126×102×62 -



Attention! 
Applies only to TI-30
* For correct operation of the transformer, a 4-fold transmission of the current cable through the transformer's opening is required.

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