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Home » Product Directory » Electrical & Electronics » Power Transmission & Transformer » Current Transformer (SCT220B)

Current Transformer (SCT220B)

Current Transformer (SCT220B)
Current Transformer (SCT220B)
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Product Description

Mini high precision current transformer SCT220B
High Sensitivity
High Potential Voltage Outstanding Stability
Wide Linearity range for output current
Directly installed to PCB

Capability Index:
Phase Shift: <5  
Compression Resistance: >4000Vac
Relative Temperature: <90%  
Operating Temperature: -50+ 65
Storage Temperature: -60+ 80  
Impact Current: 500A*1Sec depends on primary linearity
Weight: 30g    
Note: RI-sub load resistance, Ri-sub internal resistance

Brief Introduction: SCT220B is a high accuracy current mini transformer, recommended circle showed as below. Rated input current 20A sub will produce a 20mA electric current. Through operational amplifier, user can adjust the resistance R, R1, R2, get a voltage output in fan-out that user required. R is better under 10¦¸, . As Fig showed IC is operational Amplifier, like OP07, As the transformers wide trends range, operational amplifier need have good capability. Operational amplifier's power voltage can usually use 15V or 12V, or can custom order according user needs. Resistance showed in the Fig precision need better than 1%, temperature modulus better than 50PPM.
Transformer sub parallel connect a resistance directly let output transfer to voltage signal is also ok. But the precondition is output voltage max 3V, and can still get the nonlinearity precede 0.1%. Compared with recommended circle, the differences are as follow, shorten the transformer's trends range and increase the phase shift.

   
Trademark:  singure
Model NO.:  SCT220B
Productivity:  100,000/month
Company: Shanghai He Hua Electronic Co., Ltd.

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