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Low voltage Electrical Feeder Pillar

Home low voltage switchgear Low voltage Electrical Feeder Pillar

Description

JP Stainless Steel Outdoor China LV Electrical Feeder Pillar

Product overview

JP series outdoor integrated electrical feefer pillar is low-voltage set switch device designed by the JiangXi Yikai Company based on the principles of safe, economical, reliable and reasonable according to the requirements of national rural power grid construction, renovation and design department. Its technical standards, technical specifications, wiring scheme of metering unit are in accordance with “Power calculation cabinet design and installation manual”, the product is a new outdoor distribution cabinet combined with overcurrent, overvoltage, phase protection and other functions. The product has features of small volume, high degree of protection, perfect protection performance and high degree of automation; it is the ideal choice for rural power grids renovation. It can be widely used in power distribution system of AC 50Hz and rated voltage of 380V, it can used as powered lighting and power distribution equipment.

Service conditions 

● Ambient air temperature: -25℃~+40℃, average temperature in 24h should not exceed +35℃.

● Altitude should not exceed 2000m;

● Air relative humidity: relative humidity can be 100% at +25℃;

● Surrounding medium should be free of conductive dust or inflammable or explosive danger, no medium that would destroy the insulation;

● The installation site should be free of strenuous vibration or impact. Installation obliquity should not exceed 5°.

Features 

● The distribution cabinet has front and rear doors, its shell uses stainless steel welding with strong anti-rust capability, the upper part has mesh vents, the lower part has shutters, which forms air channel between the upper and lower parts;

● The power distribution cabinet has distribution metering, feed and voltage measurement, reactive power compensation and leakage protection and other functions, and it can select the appropriate components according to the size of transformer capacity;

● The power distribution cabinet uses leakage pulse protection device combined with leakage relay and AC contactor, the device will cut off current when the leakage current of the protected power supply system is gradually increased to reach more than the rated residual operating current of relay;

● The switch of the reactive power compensation part can use static AC contactor, it can also use combination switch or non-contact switch to switch capacitor, thus the switching process has no flashy flow, no over-voltage operation, no arc, fast response and no operating noise, and its operation is stable and reliable; in three-phase unbalanced load position, it can take phase splitting compensation with compensations of three phases, it can ensure consistency of power factors of three phases.

Technical parameters

● Rated voltage: 400±20%V;

● Rated current: 25, 40, 63, 125, 160, 200, 250, 315, 400A;

● Rated frequency: 50Hz;

● Insulation resistance: ≥4M;

● Dielectric strength: main circuit: 2.5kV, 1min; auxiliary circuit: 2.0kV, 1min.

● IP grade:IP44

Ordering instruction
Please provide those below detailed information, when you order the switchgear.
001 Main connection wire solution serial number and single line system diagram, arrangement and

plane layout drawing
002 Main connection line solution serial number, purpose and single line system diagram, rated voltage,

rated current, rated short circuit breaking current, distribution electricity chamber plane layout diagram,

arrangement diagram of switchgear and so on.
003 Secondary connection wire diagram, terminals arrangement diagram. If you can’t provide terminals

arrangement diagram, we will provide the terminals arrangement according to manufacturer’s diagram.
004 Requirement of switchgear control,measurement and protection function and requirement of other

shutting and automatic device.
005 Model, specificaton, quantity of switchgear equipment’s electrical apparatus elements
006 Electrical equipments summary sheet
007 If the interspace of switchgears or incoming line cabinet need bus line bridge to connect, please provide

rated load current of bus line bridge.
008 If you need busbar (busbar between two array cabinets and busbar between wall cabinets), please provide

detailed span and high altitude distance.
009 If the switch equipment are used in the special environment conditions, please put forward it when you

order the switchgear.
010 When you need other apparatus or exceed attachment supplied equipment list, please put forward model

nd quantity you need.
011 Other special requirements.

FAQ:

001 Q What is electrical switchgear
A Electrical switchgear is a key component in electrical power systems and is used to both distribute electrical

power and to selectively isolate electrical loads.
The switchgear is a switching device comprising of connecting or disconnecting switches, fuses or circuit

breakers, protective and controlling devices which can be used to isolate electrical apparatus in faulty

condition or during maintenance period, or to connect the same in desired healthy conditions.
002 Q Do we need to monitor the switchgear conditions
A Yes, Because switchgear distributes electrical current, heat build-up becomes an important characteristic

to monitor. In particular, unexpected temperature rise at a particular location could indicate corrosion or

some other type of defect. Thermal effects are especially visible in medium voltage switch gears used

in distribution networks, where electrical currents may rise to few thousands of amperes. Thus keeping

switchgears in proper condition over their long life becomes a critical issue.
003 Q What are the main causes of arc flashes in industrial switchgear?
A The main causes of arc flashes in industrial switchgear are: the application of tools to energize switchgear,

deteriorated insulation on phase bus bars, and loose electrical connections that overheat. These things can

be prevented by proper safety measures and regular maintenance.
004 Q What is the lowest voltage at which arc flashes occur?
A 120 volts is generally considered the lowest voltage at which arc flashes occur. The voltage of industrial

switchgear can exceed this voltage by hundreds of thousands of times.
005 Q What is Metal Enclosed Switchgear?
A Metal Enclosed Switchgear is a switchgear assembly that encloses all necessary equipment and device in

separate metal vertical structure (i.e MCCs, PCC), however they each metal compartment are not separated

from one another by metal barriers. It’s used often with low voltage equipment.
006 Q What is Metal Clad switchgear?
A Metal Clad Switchgear is a switchgear assembly that encloses all necessary equipment and devices in one

metal house, but compartments in this assembly is separated fromone another by metal barrier. When metal

clad switchgear is used or assumed when MV switchgear is provided.
007 Q Difference between Metal Enclosed Switchgear and metal Clad Switchgear.
A Metal enclosed switchgear: Assembled with separate metal vertical section
Metal Clad Switchgear: Assembled in one metal structure.
MES: each compartment is not separated from one another with metal barrier.
MCS: each compartment is separated from one another with metal barrier.
MES: Frequently used in LV system.
MCS: Frequently used in MV System. When MCS is said MV Switchgear is assumed.
MES: All breakers and other switching devices are fixed type.
MCS: All breakers are withdrawable type.
008 Q How’s your electrical switchgear waranty?
A Once you buy the product manufactured by Jiangxi Yikai Electric in China can get 24 months waranty after delivery date.

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