JP series outdoor integrated distribution box
Non-standard box (cabinet)
Scope of application ：
It is applied to the transformation of urban and new rural power distribution system.
product details
JP tank(low voltage ac integrated distribution box)is a set of installed on the low voltage side of transformer power distribution,metering,protection,control and reactive power compensation in a body's comprehensive power distribution products,by the switch room,measuring room and compensation chamber of three parts,the main components including measuring and measuring current transformer,circuit breaker,watt-hour meter and the data acquisition terminal,power distribution control terminal,capacitor unit and self-healing type low voltage parallel capacitor,etc.Because of its advantages in electric energy distribution,control,management,harmonic control and reactive power compensation,integrated power distribution cabinet has been widely used in urban and new rural power distribution system transformation.The product can improve the power factor of low-voltage distribution network,reduce the loss,improve the quality of power supply at the load end,and improve the utilization rate of transformer and transmission line.It is of great significance in saving energy and reducing loss,strengthening the safety and stability of power system network and improving the economic benefit of users.
This company produces the JP series integrated power distribution cabinet shall be carried out in accordance with the IEC and gb design,reliable safety runs under various environmental conditions can,has been widely used in low voltage power distribution system,especially in Inner Mongolia,henan,guizhou,hubei,and hebei province new rural electric power distribution system reform process,the heavy use of this product.
This product conforms to iec439-1"low-voltage switchgear and control equipment",gb7251.1-2005"low-voltage switchgear and control equipment",GB/t15576-2008"low-voltage reactive power compensation equipment".
Ii.Operating environment
Iii.Technical parameters
Iv.Functional features
Collection of electric energy measurement and reactive power compensation device in one,improve the utilization rate of equipment,investment payback period is short;
★no operating overvoltage and arc reignition during switching;It can be switched on and off frequently,multiple compensations can be in place at one time,phase separation compensation,three-phase compensation and combination compensation can be realized,and high harmonic can be filtered by reactor.
★complete protection measures:short circuit,lack of phase,overvoltage,undervoltage,harmonic protection,etc.;
★convenient parameter setting,in the external fault automatically exit operation,automatic recovery after power;
★reduce line loss,distribution transformer effective output capacity increase,reduce the load of the grid;Optimize the quality of electricity consumption,including improving the qualified rate of voltage,reducing voltage fluctuation,inhibiting voltage flicker,and improving the safety and reliability of power grid operation;
At the unbalance of three phase,can be divided into phase compensation reactive power,to improve the unbalance;
Capacitor capacity can be configured arbitrarily.According to the principle of"best compensation effect,least switching times",the equipment will automatically select capacitor combination.
V.typical wiring mode
★the incoming line adopts the mode of isolation switch+circuit breaker or the mode of isolation switch,knife melting switch,load isolation switch and circuit breaker;
★outgoing configuration 1-4 loop;
★incoming and outgoing circuit breakers can choose residual current action circuit breakers with communication function,with automatic overlap function,realize the automatic protection and control function of the incoming and outgoing circuit;
Taken the distribution transformer capacity greater than or equal to 100 kva,reactive power compensation using automatic belt distribution monitoring(display three-phase U/A/W/Q/COSф)and compensation controller with communication function,realize the user for remote monitoring of transformer;
Capacitor switching switch can choose composite switch or contactor;
★can choose intelligent capacitor instead of miniature circuit breaker+composite switch(contactor)+capacitor;
Close bus system can be used for bus in transformer comprehensive distribution cabinet with capacity of 400kVA or above.
Specification and type selection table
★if no special instructions are provided,the outgoing circuit below 500kVA shall be configured as no more than 2 outgoing circuits,and the above 500kVA shall be configured as no more than 3 outgoing circuits,and the rated current of each outgoing circuit shall be configured as per dispersion coefficient 0.8(80%of the rated current of the incoming switch).
★no embroidered steel box body,small and medium-sized capacity JP cabinet depth can choose 480mm,500 mm,530mm,550mm,580mm and 600mm,500kVA above large capacity JP cabinet depth can choose only 600mm.
★if users have special requirements for box size or configuration of components,it can be customized according to user needs.
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