High voltage metering box is a completely closed structure made of epoxy resin vacuum casting, for the use of electric energy metering in outdoor 6, 10KV power system, its surface crecreen distance is large, outdoor anti-umbrella structure design, with small size, flexible installation, long-term maintenance free operation, UV protection and other characteristics, can achieve no oil on the net. Completely replace the oil-immersed combined transformer.It is a fully enclosed pillar structure for epoxy resin casting in indoor. It is a combined current and voltage transformer with capacitor protection developed. The product consists of two single-phase fully insulated voltage transformers to form a "V" shaped connection, the fuse installed in the primary terminal inside, more convenient and fast, the fuse current and the transformer short circuit capacity match, reduce the space, make the structure more reasonable and compact; The two current transformers are connected in series in phase A and C respectively, and the secondary winding of the current transformer with taps can obtain different current ratios, and can also be double winding.
The performance of products is conformed to IEC61869-1:2007, IEC61869-2:2012 commission requirements
Rated insulation level: 12/42/75kV
Power factor of load: COSΦ=0.8
Rated frequency: 50Hz, 60Hz
Rated secondary current: 5A or 1A
| Type | Rated voltage ratio(V) | Rated current ratio(A) | Voltage transformer accuracy rating and rated output(VA) | Current transformer accuracy rating and rated output(VA) | Rated insulating level (kV) |
| JLSZY-6 | 6000/100 | 5-600/5 | 3×15 | 3×10 | 7.2/32/75 |
| JLSZY-10 | 10000/100 | 5-600/5 | 3×15 | 3×10 | 12/42/75 |
