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current transformer load box
current transformer load box
Specifications
Price :
1000-2000
secondary current :
5 A,1A
accuracy :
3%
power factor :
0.8，1.0
rated capacity :
2.5 -80 VA ;2.5VA-40VA
Description

In the verification of current transformer, it is used to simulate the secondary load of the transformer under test.

The current load of the device is connected in series between the K2 of the test current transformer and the Tx of the calibration instrument.
Adjust the load to match the actual secondary load of the test current transformer. Note: Some current transformers specify their secondary load in terms of capacity (VA), while the load of a current transformer's load box is typically expressed as resistance (Ω). The conversion formula is: Capacity (VA) = Resistance (Ω) × Secondary current (A). Customized load boxes with specific requirements can be designed according to user specifications.
The current load box's resistance is reduced by 0.06Ω for external wires, accounting for the combined resistance of the load and connecting wires when the tested transformer is in use. For cosΦ=1 at 0.4Ω setting, the actual load box resistance is 0.34Ω; for cosΦ=0.8 at 0.4Ω setting, the actual load box resistance is 0.26Ω (0.4×0.8-0.06).

Rated capacity: 2.5VA-60VA for cosΦ=0.8, 2.5VA-20VA for cosΦ=1.0.

Measurement range: (5A) 1%-120%, (1A) 5%-120%.

Secondary current: 5A,1A.

Power factor: 0.8, 1.0.

Accuracy: ±3%.

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current transformer load box

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Product Detail
Price :
1000-2000
secondary current :
5 A,1A
accuracy :
3%
power factor :
0.8，1.0
rated capacity :
2.5 -80 VA ;2.5VA-40VA
Contact Supplier
current transformer load box

Wuhan Xinfeixiang Electric Power Technology Co., Ltd

Verified Supplier
1 Years
hubei, wuhan
Business Type :
Manufacturer, Exporter
Main Products :
High Voltage Withstand Test, High Voltage Test,
Total Annual :
10000000-50000000
Employee Number :
100~120
Certification Level :
Verified Supplier
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