CT-150/5-1 Fixed current transformer : Primary 150 A / Secondary 5A - Model 1 - Diameter 20 mm

Closed current transformers with Secondary 5A

COMMON TECHNICAL CHARACTERISTICS

• Housing: self-extinguishing ABS
• Current on secondary side: 5 A (other on request)
• Sampling frequency: 40-60 Hz

• Nominal dynamic short-circuit current (Idin):

  • 2.5 I for 1 sec - Maximum peak value that the TI can withstand with the secondary in short circuit

• Nominal thermal short-circuit current (Iter):

  • 40-80 Ipn for 1 sec - Maximum effective value with secondary in short circuit
• Permanent overcurrent: 1.2 In
• Reference voltage for insulation:
• 0.72 kV maximum voltage value
• Test voltage: 3 kV at 50 Hz for 1 min., maximum voltage value between primary and secondary 
• Safety factor: N <= 5 Verzadigingsfactor (Sf) of verhouding tussen de waarde van de primaire stroom, die de verzadiging van de magnetische kern veroorzaakt, en de waarde van de nominale stroom. Hoe lager de waarde van N, hoe beter de bescherming van het instrument
• Operating temperature: -25°...+50°C
• Storage temperature: -40°...+80°C
• Maximum cable temperature: 70°C
• Relative humidity: 90% max, non-condensing
• Insulation: in air class E
• Protection degree: IP 30
• Construction: According to standards CEI 38-1, IEC 185, VDE 0414, EN60044-1, EN60044-1A

 Use and choice of the right current transformer

The choice depends on the type of application you are dealing with: a machine, a retrofit on an existing switchboard, or the need for a solution that can also work well without inspection.

Master Chips has various models of current transformers in stock to combine with your network analyzers or to be connected to the energy meters managed by us.

The choice of the current transformer is often underestimated when measuring electricity consumption. This can lead to discomfort during installation by the operator, and to the introduction of measurement errors that can affect the energy measurement of our energy meter. Please see our catalogue for more technical information about this item. 

We recommend the version with 333mV secondary for installations remote from the measuring instrument.