This type of transformer adopts an integral casting structure, is applicable for power systems of rated frequency 50Hz or 60Hz and rated voltage up to and including 0.66kV, used for current measurement, electric energy metering, relay protection, etc. It complies with the standard Q/GDW1572-2014 Technical specification of a low-voltage current transformer for metering.
Use environment
Altitude: should not exceed 1000m
Ambient temperature:-5ºC~+40ºC
Air relative humidity:≤85%
Air relative site: indoor.
Technical parameter
Rated secondary current: 5A or 1A
Power factor: cosφ=0.8(lag)
Rated frequency: 50Hz or 60Hz
Rated primary current, rated output, and accurate level see table 1
Insulating property: primary winding to secondary winding and ground, and secondary winding to the ground can bear the power frequency withstand voltage 3kV for 1min.
Technical ratio
Type
Rated primary current(A)
Rated output VA(COS phi=0.8lag)
0.2S
0.2
0.5S
0.5
1
LFZ1D-DGG1
10-60
5-2.5
5-2.5
5-2.5
5-2.5
5-2.5
LMZ(1D,2D)-DGG1
75-500
5-2.5
5-2.5
5-2.5
5-2.5
5-2.5
LMZ(3D,4D)-DGG1
600-1500
10-3.75
10-3.75
10-3.75
10-3.75
10-3.75
Eng. ADOFO MICHAEL ADJEI / BSc, MSc Project Manager, Foreign Trade and Technology Denggao Electric Co. Ltd Head Office: No 208 Weiwu Lu, Economic Development Zone. Yueqing - China