Current transformer TO-1000
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  • Current transformer TO-1000
  • Current transformer TO-1000
  • Current transformer TO-1000
  • Current transformer TO-1000

Current transformer TO-4000

TO-4000-5, 5902431675459

Single-phase.
 Withopen core.
Gear 4000/5.
Power 10 VA.

Current transformers proportionally change large currents to lower values, adapted to the measuring ranges of control and measuring devices.

Operation of the TO-4000 single-phase open-core current transformer

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

Note!
It is recommended to connect the secondary system with a wire with a diameter of not less than 2.5 mm².
It is recommended to ground the S2 terminal.
Prohibit disconnection of the secondary system during operation of the transformer (possibility of high voltage resulting in paralysis of persons or damage to the device).






TO-4000-5
Type
single-phase
Building
with open core
Transmission lp / ls
4000/5
Class
0,5
Power [VA]
10 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.
Security factor
FS ˂ 5
Connection S1 / S2
zaciski śrubowe 4 mm²
Tightening torque
0,5 Nm
Working temperature
-15 ÷ 50°C
Mounting position
vertical/horizontal
Assembly
Front of control cabinet
Ingress Protection Marking
IP20

Type Transmission Class Power  
 Dimensions [mm] Weight
  Ip/Is   [VA] A B
C D E F G H I [kg]
TO-100 100/5 1,0 1,5 21 32 51 89 105 34 42 40 32 0,78
TO-150 150/5 1,0 3,0 21 32 51 89 105 34 42 40 32 0,78
TO-200 200/5 0,5 1,5 21 32 51 89 105 34 42 40 32 0,78
TO-250 250/5 0,5 1,5 21 32 51 89 105 34 42 40 32 0,78
TO-300 300/5 0,5 1,5 21 32 51 89 105 34 42 40 32 0,78
TO-400 400/5 0,5 2,5 21 32 51 89 105 34 42 40 32 0,78
TO-600 600/5 0,5 2,5 50 80 78 114 145 32 32 32 33 0,9
TO-750 750/5 0,5 5,0 50 80 78 114 145 32 32 32 33 0,9
TO-1000 1000/5 0,5 5,0 50 80 78 114 145 32 32 32 33 0,9

     

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