Standard layout c/w M & E design of SSU 11kV and 11/0. The compact substation design is a complicated method with a lot of engineering planning. The best material for conductors is aluminum and copper. EWT Pre-Fabricated Substation unit is one of the most economic, convenient, effective equipments and friendly solutions – easy and safe to operate substations. In TNB, types of VCB used are TAMCO, EPE and AICHI. It identifies its location and sends interruption message f tripped command to the particular point of the circuit. Your Premier Secondary They offer high voltages and are much affordable in cost. The Compact/Package Substations are equipped with SF6 Ring Main Unit Switchgear, Distribution Transformer and LV Switchboard. The session was chaired by Tn Hj Ismail Din (Senior General Manager, Engineering Department, TNB Distribution). The briefing was extended to the members of TEEAM, the Association of Consulting Engineers Malaysia (ACEM) and the Real Estate and Housing Developers’ Association (REHDA). The conductors are used for transmission of energy from place to place over compact substation. Hey, I am Tony Wang. We hope we presented you enough information about the different components of a compact substation and their corresponding functions. 433kV sub-station is available at TNB offices. RATING. 12 kV. These are composed of uncovered copper conductors supported on insulators. Short Time Withstand Current. The compact substation is designed, keeping in mind the personnel safety, considering H.T. VCB is also called vacuum insulated switchgear. Compact Substations, Indoor Substation, Outdoor Substation, Control Panels, HT Panels, Cable Glands, On Load Break Switch Fuse Panel Suitable for 11 KV Indoor / Outdoor Sub - Station, Manufacturer, Supplier, Exporter, Nashik, Maharashtra, India 0% 0% found this document not useful, Mark this document as not useful. The substation is installed and mounted on skid frame or wheels or channels and is provided with lifting hooks. It aimed to brief on TNB’s new policy in the use of compact substations of 500kVA supplying electricity to new housing schemes for domestic consumers and the new layout design of  11/ 0.4kV substation. The new policy of compact substation of 500 kVA capacity is encouraged to be installed for new housing development (domestic customers) only. Thus, it triggered TNB to look into reviewing its current policy on compact substation installations. 40kA, 3s (50kA, 1s for substation adjacent to Power Station, or within 500kV substation) 132kV: 31.5kA, 3s (40kA, 3s for substation adjacent to Power Station, or ... Voltages other than the above classifications cannot be provided by TNB. The current policy of all compact substation installation requires pre-approval from Chief Engineer’s office in TNB Headquarters before the planning of network design can proceed. Conventional Substation Conventional substation designs are of indoor type (equipment housed in a permanent building) and out-door type (ground-mounted or pole-mounted). A wide variety of compact substation options are available to you, such as usage, phase, and coil structure. Major clients are Tenaga Nasional Berhad (TNB), … However, developer/customer has the option of choosing conventional substation or compact substation 500 kVA. Ms Tan Siew Hwa (TNB Senior Engineer, Engineering Department) gave two powerpoint presentations on “Planning Design Policy using 500 kVA Compact Substation” and “New Layout Design of 11/0.4 kV in TNB Distribution”. Capacitor banks are determined as a collection of several identical capacitors. For detailed information, you may contact Ms Tan Siew Hwa at E-mail: tshwa@tnb.com.my. It safeguards the conductor and insulation from any damages. Internship Report TNB … Power Distribution Solutions Provider, Yueqing Economic Development Zone, Yueqing City, Zhejiang Province, China, Outdoor Medium Voltage Vacuum Circuit Breaker, Cast Resin Dry Type Distribution Transformer. 433kV sub-station is available at TNB offices. They are used for the correction of power factor and protection circuitry of the substation. The prefabricated compact substation is one kind of compact complete set of distribution equipment which designed combining medium voltage switchgear, low voltage switchgear, distribution transformer, energy metering devices and reactive power compensation devices into one or several boxes according to a certain wiring scheme. VCB will trip if any fault occurred. Distribution Bulk Power Substation that provide interfacing between Transmission network and Distribution network where the Transmission voltage is step down to Distribution voltage. The power usage could be achieved by the load center. This is for transfer of power to a single transmission unit from different co-located turbines. Busbars are utilized to bring big current and to distribute current to various circuits in equipment or switchgear. These are provided for isolation from the live parts for the purpose of maintenance. Isolators are interlocked along with any circuit breakers. Design of an ultra compact distribution substation P. Deschamps1 1M. For Transformer Distribution Compartment, there is: When we talk about low voltage distribution compartment, it’s composed of the following: Ultimately, a high voltage distribution compartment is composed of: Overall, a compact substation is composed of the following components: In this post, we will discuss the different components of compact substation and their functions. IIESB, was established in 1988 as a fully Malaysian incorporated company.ITEMS founded by Dato' Hj Ayob Aziz which is a dynamic entrepreneur and have 35 years of experience. About 21% of these are Power Distribution Equipment, 7% are Transformers. TNB compact substation. Guidelines for Smart Automation Grant under the National Eco... Malaysia Trade Statistics Review Volume 1/2020, MIDA-TEEAM Webinar on Smart Automation Grant (SAG). This post presented an insight into the basics of compact substation and their major components of power systems. Applying open switches is also possible. When a fault happens in the bus bar, the overall components linked to that particular section must be tripped for providing comprehensive isolation in a minor. On 10th February 2010, Tenaga Nasional Berhad (TNB) organised a half day technical briefing session on new compact substation planning policy and new 11/0.4kV substation  layout at Wisma TNB, Petaling Jaya. KUANTAN (Jan 8): A total of 302 substations in Pahang have been shut down due to floods which hit the state since Sunday, said Tenaga Nasional Berhad (TNB) chairman Datuk Seri Mahdzir Khalid.Of the total, only 196 have reopened and resumed operations.The district with the highest number of substations remained shut down is Temerloh with 65 substations, and some other … 0% 0% found this document useful, Mark this document as useful. Normally, relays are sensing gadgets that are committed to tracking faults. Get contact details and address | … 275kV 40 kA, 3s for bulk station (50kA , 1s for Power Substation and 275kV within 500kV substation) iii. They limit the duration and the amplitude of the flow of the current. That could be fulfilled by the power generating substations. This video is unavailable. It’s a conductor that carries current to a point having different connections with it. Related titles. 2 Load Break Switch + 1 Fuse Switch. Every component functions are discussed in detail along with machinery. Provision for maximum safety in public area. equipment located in populated areas. Precast concrete compact substations unit is designed to house distribution networks for utilities and for the residential, industrial and infrastructure sectors. It aimed to brief on TNB’s new policy in the use of compact substations of 500kVA supplying electricity to new housing schemes for domestic consumers and the new layout design of 11/ 0.4kV substation. It safeguards the equipment from other damages like: A circuit breaker is a kind of switch used for opening or closing circuits when a fault happens in the system. ITEM being vendor to Tenaga Nasional Berhad (TNB) for 11KV VCB and 33KV GIS. Degree of Production Those are known with the term of disconnected switches operation below no-load condition. Medium voltage Compact stations have been developed for all insulated medium voltage switches manufactured in Europe. The circuit breaker has two mobile contacts that are off condition in normal cases. They limit the duration and the amplitude of the flow of the current. However, you may opt to make your own transformation arrangements where necessary. Plug-in devices with fusible switches or circuit breakers might be wired and installed without de-energizing the bus bars. Long and high transmission networks are necessary for this function. Nonetheless, it’s costly to supply power at a high-voltage level. Standardized M & E design of 11/. Her presentation covered the new features in the substation layout, new LV bulk customer metering room, connection scheme, roof slab requirement, fire fighting system requirement and fencing requirement. The substation is a compact enclosure consisting of MV switchgear, a transformer and an LV switchboard located in three separate compartments which are segregated from each other by means of partitions in order to ensure personnel safety. Output The Diabolo transformer substations are available with the following capacities: 630 kVA 1,250 kVA 2,500 kVA Low voltage Virtually all imaginable specifications can be built due to the special modular Standardized M & E design of 11/. FEATURE & ADVANTAGES Precast concrete CSUs are weather-resistance and suitable for harsh environment, with robust design to offer different layouts as per equipment and application requirements. In short, they lower phase difference amid voltage and current. They aren’t stimulated with arc-quenching devices as well. Bear in mind that the compact substation designs are dependent on the need. PMU serves as main supply sourceto: i. FirstlevelofDistributionprimarynetwork(33kV,11kV) ii. 40kA, 3s (50kA, 1s for substation adjacent to Power Station, or within 500kV substation) 132kV: 31.5kA, 3s (40kA, 3s for substation adjacent to Power Station, or ... Voltages other than the above classifications cannot be provided by TNB. Gayatri Electrotech Co. All equipment proposed to be installed and connected to TNB supply must comply with the following short circuit ratings: System Short circuit rating i. A wave trapper is considered one of the components of a compact substation. Normally VCB is used in Main Intake Substation (PMU). You will also find other types that are different according to their duties. You will find various types of power generating substations such as: Based on the accessibility of various sources, substations are building at various locations. A substation surge is situated at the beginning of the substation as observed from incoming transmission lines. Precast concrete compact substations unit is designed to house distribution networks for utilities and for the residential, industrial and infrastructure sectors. These component discharge the overvoltage surges to earth. 4kV sub-station is available at TNB offices, and publicly available in TNB website: Substation Design Booklet. A copy of the powerpoint presentation can be viewed by members at the TEEAM Library. This endeavour falls in line with TNB’s challenge to stay relevant and up to date with the modern consumer needs by shifting towards online monitoring, remote supervision and switch control. Isolators don’t have any rating for current making or current breaking. The function of several components was discussed. A voltage transformer could be determined, as it’s an instrument transformer utilized for altering the voltage from a superior value to the minor value. This is a device used for the conversion of high-value currents into lower values. Prefabricated Compact Substation. Ultimately, they are mechanically operated switches too. This web browser either does not support JavaScript, or scripts are being blocked. In term of substation land size, land price and building price, there is a vast cost saving for developers to install a compact 500 kVA substation in comparison to the conventional single chamber 500 kVA. 30 V dc supply from battery bank is used to operate the relay system of VCB. Therefore, its trapping is of utmost importance. Of the total, only 196 have reopened and resumed operations. Conductors are the materials that enable the flow of electrons through it. 20 kVA rms, 3s. The website requires JavaScript to support the web content. The new planning design policy arises because there has been a lot of requests on compact substation installations in new supply development, replacing the conventional substations due to land scarcity and simplicity in construction. However, you may opt to make your own transformation arrangements where necessary. We will always be behind you and good These days, the need for electrical power is growing quickly. KUANTAN (Jan 8): A total of 302 substations in Pahang have been shut down due to floods which hit the state since Sunday, said Tenaga Nasional Berhad (TNB) chairman Datuk Seri Mahdzir Khalid. 4kV sub-station is available at TNB offices, and publicly available in TNB website: Substation Design Booklet. Siemens Compact Substation Manufactured By Raban Al- SafinaGroup Of Companies\IRAQ Embed. Also referred to as buses, these can be seen as the entire power system. The substation is compact in size, suitable for frequent shifting and for use in indoor/outdoor locations. Good turnout – Some 100 participants attended the technical briefing. Configuration. This kind of construction was sufficient for current ratings of 225 to 600A. The storage batteries are composed of two types: The common type and most utilized batteries are the lead-acid batteries. This compact substation component could be determined as the first component of a substation. It safeguards the equipment insulation from lightning surges and switching surges. Having client centric approach, we are engrossed in providing an assorted range of best-in-quality Compact Substations. TNB in a statement announced that 67 substations in Jengka, Maran, Jerantut and Raub in Pahang as well as 24 substations in Johor Bahru, Kulai, Johor Jaya, Kota Tinggi and Kluang in Johor have been shut down to ensure the safety of customers. Compact portable ready to install; The isolator in the substation is a mechanical switch that is deployed for isolation of circuits when there’s an interruption of current. Take note that compact substation is divided into three compartments. Insulators are utilized in compact substations for preventing short circuit and contact with humans. The CSS are compact and consist of power factor correction equipment, ring main unit / load break switch, circuit breakers, switchboards and dry / oil type transformers encased in robust enclosures with easy access to equipment. All LV distribution boards in new substations are to be replaced with feeder pillars as refered in the Electricity Supply Act Reguiation 19(3). There’s a need for collector substation in cases of big power generating system. Therefore, it is vital to transmitting power from the substation to load center locations. However, such locations might not be nearer to load centers. 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