Rockwill Electric Group
1. Influence on distribution transformers (1) The three-phase load imbalance of power transformer will increase the loss of transformer: the loss of transformer includes no-load loss and load loss.
Date:2020-10-05 View:1955
The page introduce what is microcomputer protection. The content includes the advantages, features, application range, types, etc. Advantages of microcomputer protection include high reliability, high precision, great flexibility, easy to maintain and debug.
Date:2020-09-19 View:1062
Basic knowledges about distribution transformer, including definition, types like oil immersed type, dry type, pad mounted type, pole mounted type. Distribution transformer is a transformer that provides the final voltage transformation in the electric power distribution system, stepping down the voltage used in the distribution lines
Date:2020-07-17 View:988
Recloser and Sectionalizer Coordination --Achieving Distribution Line Automation under Traditional Condition -- -- Realizing Distribution Automation without SCADA System -- #recloser #sectionalizer #distribution automation #Semi Smartgrid
Date:2020-06-03 View:1185
Explain difference between AIS and GIS. MV switchgear is an important part of power distribution system for maintaining the continuity of service, and you have to consider some different aspects based on your needs before selecting a suitable MV switchgear.
Date:2020-06-03 View:949
What is ACR Auto Recloser? Auto recloser (ACR) also named automatic circuit recloser is recognized by electric utilities throughout the world as an essential device for achieving their prime goal: providing maximum continuity of electric service to customers.
Date:2020-05-10 View:914
Details introduction about outdoor auto vacuum recloser which manufactured by Rockwill Electric. This page will help learn more knowledges about RCW auto recloser as improvements in parts and assemblies are made.
Date:2020-01-07 View:675
What is Grounding? Grounding refers to connecting the neutral point, shell or bracket of the equipment and electrical device with the grounding device by conductor. This is the way to prevent electric shock and equipment damage.
Date:2020-12-26 View:325
installation manual of RVR single phase 32 step voltage regulator which is manufactured by Rockwill in China.
Date:2019-09-17 View:324
What is Distance Protection Relay? Distance protection relay is the name given to the protection, whose action depends on the distance of the feeding point to the fault. The time of operation of such protection is a function of the ratio of voltage and current, i.e., impedance.
Date:2019-08-29 View:621
The professional VCB vacuum circuit breaker manufacturer Rockwill Electric is the professional manufacturer and designer and patent woned factory of Medium voltage and high voltage VCB vacuum circuit
Date:2019-06-15 View:566
What is compact substation CSS? The CSS Compact substation is actual a prefabricated eletric equipment unit which is comprising of MV & MV switchgear, Power & Distribution transformer, LV switchboard, Connection busbar and other accessories.
Date:2019-05-09 View:603
Ring main unit (RMU) is a set of high voltage switchgear installed in the steel plate metal cabinet or made into an assembly interval ring network power supply unit. The core part adopts load break
Date:2019-04-09 View:915
A load break switch ie. on load break switch (LBS) which is a capable small fault current breaking switchgear.It is not like VCB or GCB which can even breaking short circuit current, Thus load break
Date:2019-04-04 View:695
What is capswitch capacitor switch? A Medium voltage or High voltage Capacitor switch or Capswitch is a special switchgear for application in switching capacitive load network. This special Capswitc
Date:2019-03-20 View:351
What is a AVR - step voltage regulator ? A step voltage regulator helps prevent a poor-quality signal from being sent over distribution lines to users. Step voltage regulators are mainly used in util
Date:2019-03-01 View:477
At present, most enterprises are connected to the power grid by using 33kV box type prefabricated compact substation built by themselves. Therefore, the quality control of box type substation is very important, This not only affects the reliability of power supply, but also has a great impact on the normal operation and economic benefits of the enterprise. So it is very important to strictly control the quality of the installation process. This paper analyzes the construction quality control of the 33kV box type substation installation, puts forward the key quality control points of the installation and construction of 33kV box type prefabricated compact substation, and expounds the concrete measures of quality control
Date:2021-04-10 View:160
Oil-immersed Power Transformer Installation and Operation Manual. The instruction manual applies to the low-loss oil-immersed power transformers with the capacity up to 6300KVA.
Date:2021-03-17 View:439
What happens if there is gas leakage in the ring main unit? The page explains some influence of Ring Main Unit Gas Leakage Problem.
Date:2021-01-05 View:330
Ring Main Unit: indoor ac high voltage gas insulated metal-enclosed switchgear (RMU) is a new generation of switchgear equipment, the main switch can either use permanent magnetic vacuum circuit breaker or spring mechanism vacuum circuit breaker.
Date:2021-01-05 View:594
is a kind of indoor and outdoor compact distribution equipment. It combines the high voltage switch equipment, distribution transformers and low voltage power distribution equipment together.
Date:2020-12-28 View:756
Common faults and solutions of LV / MV switchgear. Including reject closing and opening, abnormal sound, locking failure, light out, remote control failure, indicator failure, etc.
Date:2020-12-28 View:367
Step Voltage Regulator - A device which will provide a constant voltage output under varying input voltages and load currents. Regulating +10% voltage and –10% voltage. Including auto transformer, load tap changer, voltage regulator control.
Date:2020-12-24 View:320
Questions and Answers (Q&A) about Power Distribution Transformer. It helps you know more basic knowledges about transformer.
Date:2020-12-24 View:450
KEMA type tested pole mounted sf6 gas load break switch from Rockwill!
Date:2018-10-10 View:171
How to setting the “close pulse time” and “trip pulse time”? Step1: Press the “Enter” key, will see the main screen, as show below: Step2: When the cursor is on the “EDIT” option, press the “Enter”
Date:2018-10-10 View:152
Shanghai STEC type tested pole mounted auto circuit recloser!Indoor vacuum circuit break switch!
Date:2018-10-10 View:127

About Us

Success References