City electric drilling distribution equipment is
mainly for the oilfield within the rig to provide power supply distribution
equipment, complete sets of power distribution equipment not only meet the rig
of the electrical equipment on the quality of the power requirements, but also
to meet the power sector on the power factor, harmonics , flicker requirements.
1-
Skid mounted box base for bad
conditions. Base with anti-corrosion treatment of high-quality steel (I-beam
and channel, the whole equipment can be multiple hoisting, dragging,
transportation, climbing plow structure) into one, the base of the horizontal
and vertical spacing of steel beams less than 1 m, slip sheet thickness of 3mm.Integrally
welding the whole steel casing base frame, wall and lifting devices, which meet
the structural strength of the installation box after multiple integral
lifting, drag, transport, the tank can be shaped skid corrosion, Anti-salt
spray, anti-mold, waterproof, moisture-proof, anti-small animals, sand. At the
same time, each skid-mounted box is equipped with a set of box brackets, which
can be used to change the skid box in the wellsite. The support can bear the
weight of each box.
2-
Box inside and outside the box all
use 2mm thick stainless steel (Q304), container-type corrugated box structure.
Inside and outside the wall between the horizontal and vertical stiffeners,
stiffeners spacing of less than 1 meter. Sandwich material and thickness to
meet the fire box, insulation requirements, the sudden changes in the external
environment temperature significantly inhibited.
3-
Cabinets at the top (with air
isolation layer) have a certain drainage slope, at the same time fortification
eaves, rain canopy to ensure that all the upper door horizontal door seam, When rain
water is inclined at 45 °, it will not be directly drenched by water and leave
a margin. All doors on the cabinet open outward, opening angle greater than 90
°, positioning device to keep it in the open position. Door handle, dark latch and lock
rain, rust and anti-blocking (container type) and the installation of damping
and fixing device to meet the rain test requirements, the door connection using
hinge-type connection to ensure that the door No damage occurred during the
process.
4-
The overall sealed box-type change
(Transformer room incomplete seal, the transformer room around the installation
of safety fence, to achieve safety and to prevent the entry of small animals)
Suitable for maritime climate, with insulation, insulation, rain, corrosion,
fire, mildew, moisture , Salt spray, shock, water, wind sand and anti-small
animal features. The overall service life of more than 20 years.
5-
Cabinet switchgear and control
protection plate fixed firmly, before the operation of the channel cabinet, Front and
rear enclosure cabinets are laying rubber insulation with insulation levels.The
distance between the top of the cabinet and the top of the cabinet meets the
requirements of installation and maintenance on the top of the cabinet.Cabinets
cabinets all use copper connection, Cabinet internal and external cable connection, high
and low voltage into and out of the cable to meet the requirements of easy
disassembly, low voltage cables and busbar connection using a dedicated cable
connector, the cable import and export of parabolic rubber ring to prevent
rain, dust, Small animals enter.
6-
The box body is provided with a
ring-shaped copper busbar. The ring-shaped copper busbar is provided with more
than 4 copper grounding terminals for connection with the grounding grid. The
electrical contact area is greater than 200mm2. The grounding terminals have
obvious grounding symbols. Box metal box, transformer neutral point, change the
power distribution equipment metal shell and its support, cable armored metal
sheath and wiring protection of steel and so on are the same box and box ring
ground copper bus reliably connected.
7-
Install the appropriate interior air
conditioner with cooling and dehumidifying function inside the cabinet to
ensure the temperature and humidity inside the cabinet are within the required
range, and ensure the safe and reliable operation of the equipment.
8-
Cabinets with energy-efficient
lighting (set emergency function integration), illumination to meet the daily
operation requirements.
9-
The lifting method and lifting points
of the box are reasonably formulated according to the overall scheme. Each set
of skid-mounted equipment needs to provide 2 sets of spreader.
10- High and low pressure chamber Set low voltage
distribution box for energy storage motors, air conditioning, lighting to
provide power.
11- The
layout of the switchgear meets the relevant specifications and requires
maintenance access, so that the switchgear can be overhauled and disconnected.
At the same time, the switchgear is equipped with enough carbon dioxide fire
extinguisher.
