About Je-Power

Established in 1915, Jefferson Electric Power LLC is the forerunner and pioneer of the electric power industry. We have a long history in the R&D and production of transformer, UPS, reactive power compensation, power filters and other power protection and improvement devices. The mature application of the products ...

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High-quality products


JE's product line strictly follows the ISO9001 quality management system and ISO14001

Make our customers use electrical energy more efficient and safer.
We develop and produce high-performance electrical energy utilization and power distribution system protection products...
 
Realizing efficient electrical energy use, saving more than 7% energy for users

Our goal is to improve our customers' energy use, reform the energy conversion method, create a safer and efficient environment...

Products

JE has a long production history and mature technology, and has become one of the largest and most powerful technology manufacturing companies in Connecticut after a long period of market testing. The company mainly produces transformers, UPS, reactive power compensation devices, active power filters, etc...

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Application

JE's product line strictly follows the ISO9001 quality management system ...

Service Network.

In addition to comprehensive products, the industry solutions provided by JE also contain perfect services, including design, assessment analysis, project management services and after-sales service. After many years of experience, we have enough knowledge, experience and ability to provide customers with the best service. ¨C Get to know the service network of JE (go to the following text)

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News Center

UK MoD Signs £20M Nano UAS Contract

No German Decision on Heron Replacement before 2012

US Naval Air Warfare Center Evaluates New Missions for AAI Shadow

South Korea Moves Ahead with Stealth Combat UAS Demonstrator

 
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The Fourth United States National Energy Summit opened in Las Vegas


At U.S. Pacific time 9:00 on August 30, 2011, the Fourth United States National Energy Summit opened in Las Vegas. The meeting, which was an energy conference of the highest standards in the United States and focuses on "the future of energy", was presided over by U.S.




Energy conservation becomes a source of the new profit in industrial production chain.

Careers

 
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Electronics Engineer


RESPONSIBILITIES
Contributing to mobility products evolution and development strategy
Software design and implementation for CDMA related features
REQUIREMENTS
Bachelor degree or above in Telecommunication, EE, Computer or related areas




Knowledge and experience of wireless network, knowledge on CDMA base station and Lucent base station product is preferred
Good understanding of large scale software development cycle and process
Highly self-motivated and able to work effectively under pressure
Be flexible on work-time during load delivery
Strong communication skill in English
Good teamwork

Wattless power controller

Ø   DSPFC controller overview

Wattless power controller DSPFC (hereinafter referred to as the DSPFC controller) is based on DSP digital microprocessor chip, and measure the power grid state by the digital to analog converter, can do effective awattless power compensation and monitoring measurement  to the grid, it can be used in low voltage reactive power compensation, automatic control system. No power compensation controller DSPFC has up to 12 output circuit, which can control the contactor or silicon controlled switch; also can set specifically the value of compensation capacity of each output loop and the discharge time of loop compensation in the non working state of capacitor .

Wattless power controller DSPFC will adjust itself automatically according to the load switching time, harmonic voltage alarm and protection circuit, resonant alarm, over voltage protection, low line current alarm; display distortion rate of voltage, current distortion rate, show capacitor power,cos¦µ, U, I, S a, P, Q and frequency etc..

Ø  DSPFC controller product features

l   the digital processor DSP chip, meet the requirement of more precise intelligent control ;

l   ¡¤using large screen LCD display in human-computer interface

l   can set the Chinese display,  Chinese parameter prompt, digital input;

l   can display the power factor, voltage, current, active power, reactive power of non, total voltage harmonic distortion, power total harmonic distortion rate,

l   has harmonic measurement and harmonic voltage and current protection;

l   ¡¤with overvoltage protection and undervoltage protection;

l   capacitor control scheme support for three phase compensation, phase compensation, comprehensive compensation scheme, the control scheme can be set up through the menu operation;

l   ¡¤ capacitor switching control program support capacity, coding and fuzzy switching mode;

l   Intelligent switch program ¡¤ optimal compensation, to prevent excessive low load;

l   It supports up to 12 switching circuit;

l   ¡¤ circuit switching delay time adjustable, the fastest 20ms;

l    manual compensation, automatic compensation two operation modes;

l   can set the parameters manually and automatically ;

l   ¡¤ switching mode, circulation patterns and stack mode;

l   ¡¤ equipped with standard RS-485Modbus communication protocol interface;

 


 


 Transformer
 - Oil immersion transformer
 - Dry type transformer
 - Special transformer
 UPS
 - 1-40kVA D/T series
 - 10-210kVA Abl-Bric series
 - DSHT-TSC
 Reactive power compensation
 - AC filter capacitor
 - Reactor
 - Wattless power controller
 - silicon-controlled switch (SCS) 
 - Security filtering compensation component
 Active power filter
 - DIVORSINE