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TI-1250 current transformer
Single-phase,
withclosed core.
Gear 1250/5.
Power 10 VA.
Current transformer is used to proportionally change large current intensities to lower values, adapted to the measuring ranges of control and measuring devices.
Operation
The wire with the measured current passes through the main opening of the current 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!
Recommended to connect the secondary system with a wire with a diameter of not less than 2.5 mm².
Recommended grounding of the S2 terminal.
Prohibit disconnection of the secondary circuit during operation of the current transformer (possibility of high voltage resulting in paralysis of persons or damage to the device).
- Type
- single-phase
- Building
- with close core
- Transmission lp / ls
- 1000/5
- 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
- -5÷40°C
- Mounting position
- vertical/horizontal
- Assembly
- blackboard / busway
- Ingress Protection Marking
- IP20
16 other products in the same category
Single-phase,
withclosed core.
Gear 1250/5.
Power 10 VA.
Current transformer is used to proportionally change large current intensities to lower values, adapted to the measuring ranges of control and measuring devices.