1、 Product Introduction
The LFZS-0.66 fully enclosed transformer measuring device is a new type of fully enclosed measuring device specifically designed for measuring the low voltage end of 10kV power transformers installed indoors and outdoors.
The primary side of the internal transformer of the device is a compound turn type, and the secondary uses a super microcrystalline alloy iron core. It adopts epoxy resin fully cast insulation, and the three-phase current transformer is cast in one go, which has the characteristics of small volume and strong overall sealing.
This device is directly installed on the low-voltage output terminal of the transformer, using tempered glass and a casting body to be installed in a closed manner, that is, the output terminal is completely closed, and the secondary wiring can be directly observed from the outside. Has good anti-theft performance.

2、 Technical parameters of LFZS-0.66 fully enclosed transformer metering device
Reference standards
GB1208-2006 "Current Transformers"
IEC69944-1:2003 "Transformers Part 1: Current Transformers"
JB/T5356-2002 "Guidelines for Testing Current Transformers"
Electrical performance
Rated voltage: 0.5 kV
Maximum voltage of equipment: 0.66 kV
Power frequency withstand voltage: 3 kV, 60 s
Rated frequency: 50 Hz
Technical data
Rated primary current: 50-800 A
Rated secondary current: 5 or 1 A
Accuracy level of transformer: 0.5S or 0.2S level
Rated secondary output: 10VA or 10-3.75VA
environmental conditions
Usage environment: indoor or outdoor
Environmental temperature: -25~50 ℃
Rated altitude: ≤ 1000 meters

LFZS-0.66 fully enclosed transformer metering device