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. U
Date:2020-10-05 View:792
1. Advantages of microcomputer protection 1.1 High reliability: a microcomputer protection unit can perform a variety of protection and monitoring functions. Instead of various protective relays and
Date:2020-09-19 View:410
Definition 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:484
Recloser and Sectionalizer Coordination --Achieving Distribution Line Automation under Traditional Condition -- -- Realizing Distribution Automation without SCADA System -- Key words: #recloser #se
Date:2020-06-03 View:446
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 suit
Date:2020-06-03 View:503
What is ACR Auto Recloser? Auto recloser (ACR) ie. Automatic circuit recloser is recognized by electric utilities throughout the world as an essential device for achieving their prime goal: providing
Date:2020-05-10 View:470
1.0 SAFETY NOTICES RCW Type recloser should be installed within the design limitations as described on its nameplate and in these instructions. Follow your company’s safety procedures. This reclose
Date:2020-01-07 View:292
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 electri
Date:2020-12-26 View:198
introduction: single word The signal words "danger""warning"and "caution" used in this manual indicate the degree of hazard that maybe encountered by the user.these words are defined as: Danger- in
Date:2019-09-17 View:192
What is Distance Protection Relay?? The general line is uniform. Then, the equivalent impedance of the line is related to the length of the line. Suppose the impedance per unit length of the line is
Date:2019-08-29 View:412
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:348
- 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 a
Date:2019-05-09 View:413
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:527
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:458
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:238
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:293
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:22
Oil-immersed Power Transformer Installation and Operation Manual 1.General rules 1.1
Date:2021-03-17 View:167
What happens if there is gas leakage in the ring main unit? When the proportion of S
Date:2021-01-05 View:200
Ring Main Unit: indoor ac high voltage gas insulated metal-enclosed switchgear (RMU) i
Date:2021-01-05 View:343
Compact substation, also known as prefabricated substation, is a kind of indoor and ou
Date:2020-12-28 View:420
1. Common faults of switchgear (1) Switchgear reject closing. (2) Switchgear reject
Date:2020-12-28 View:218
Background The voltage of 10KV distribution line in rural areas usually fluctuates gr
Date:2020-12-24 View:229
What does △/ Y0―11 mean which is showed on the transformer nameplate? According to th
Date:2020-12-24 View:321
KEMA type tested pole mounted sf6 gas load break switch from Rockwill!
Date:2018-10-10 View:117
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:108
Shanghai STEC type tested pole mounted auto circuit recloser!Indoor vacuum circuit break switch!
Date:2018-10-10 View:86

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