2.Function and application:
Overhead pole mounted primary metering unit complies with the
latest applicable industrial standards and local and or national
electrical code (such as IEC, IEEE (ANSI), CAN, GOST, CEF). It is
used for three-phase overhead power grid energy measurement
management and distribution network automation management system,
the primary side measurement is more accurate, and the power loss
of the line can be effectively measured so as to reduce losses.
3.Main features3.1The medium voltage transformer of the metering unit is composed
of 3 single-phase combined transformers, which saves installation
space and can be installed directly on the pole outdoors, which is
convenient and quick;
3.2The metering unit is equipped with a meter box and connected to
the transformer interface. The box reserves the space for electric
meters and communication modules installation, and is equipped with
meter box door switches, proximity sensors, data debugging ports,
conversion switches, and door lock seal structure is with
anti-electricity stealing design;
3.3The meter box body is made of corrosion-resistant alloy aluminum
or hot-dip galvanized low-carbon steel, and the sealing design is
weatherproof, acid and alkali corrosion resistant, and UV
resistant;
3.4The medium voltage combined transformer is insulated with epoxy
resin solid encapsulation, the surface is dirt-resistant,
UV-resistant, has excellent dielectric and mechanical performance.
It is oil-free, gas-free and maintenance-free, meeting the
requirements of safe operation and environmental protection;
3.5The CT of the medium voltage combined transformer can be
configured according to double transformation ratios, and the VT is
equipped with anti-short circuit and overload protection devices as
required to avoid burning and explosion caused by VT short circuit
and overload.
3.6The primary connection adopts copper contact bar and terminal
clamp and can be equipped with terminal connectors with
corresponding area as per user’s requirement. Lightning arrester
can be selected as required
JLSZXW3-17.5 CNAS reporte (2).pdf
JLSZXW3-17.5 KEMA reporte (1).PDF
If the parameter requested exceeds the range of the above table, it
can be determined after negotiation with our company.
