Modular integrated transportable substation (MITS)
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1 Technical Data TD027002EN transportable substation (MITS) Contents Description Page Voltage regulation with bypassing Mobile MITS application Natural gas extraction Utility substation Portable power application Small substation Residential area substation Lightning damaged substation Rural substation
2 Technical Data TD027002EN Voltage regulation with bypassing 10 kva Station Service W/VFI HV: 34,500V Delta LV: 120/240V FR3 Fluid Filled Single-point contact for project management, plug-and-play installation, on-board fluid containment, and resolved voltage regulation with an aesthetically pleasing design. A waste water treatment facility in the northeast United States found that poor voltage regulation was a significant problem for their equipment. The facility decided to remedy the situation with a voltage regulation MITS, resulting in fewer equipment issues and improved reliability kv Bypass Switch S L 34.5 kv Fused Disconnect Switch Regulators (3) 345 kva 34.5 kv, 100A, FR3 Fluid Filled 34.5 kv Fused Disconnect Switch Figure 1. System Schematic 8'-11.8" 34.5 kv Fused Disconnect Switch 10 kva Control Power FR3 Fluid Volume = 173 Gals kv, 240/120V 43'-11.4" Voltage Regulator 34.5 kv, 100A FR3 Fluid Volume = 470 Gals kv Fused Disconnect Switch and 34.5 kv Bypass Switch 10'-1.0" 4-Inch Containment Wall Above Deck (Typical All Around) Figure 2. System Layout and Dimensions 2
3 Technical Data TD027002EN Mobile MITS application 480V Junction Box for Generator Cable Connection 5 kv Cables on Trailer Improved reaction time in emergency situations, completely mobile, integrated connection interface, and simple design. This application involves a dedicated mobile application for the customer. Fueled by the need to respond and react to potential emergency situations, this mobile MITS provides the customer the ability to transform voltage. Used in conjunction with a mobile genset, voltage is generated at 480V and stepped up to a voltage of either 4160Y/2400 or 2400V delta to supply power on an emergency basis. 2400/4160Y/ V Step Up Application 2500 kva, FR3 Fluid, 65 C Figure 3. System Schematic Steel Diamond Plate Deck 5 kv, 350 kcmil Jacketed Cable, 100 Ft 8'-6" Spare Tire/Cover, Near and Far Side 12" Galvanized Steel Cable with Turnbuckle 480V kcmil Metal-Clad Armor Cables Ground Cable Storage Box 2500 kva 2400/4160Y/ V 5.73% IZ 480V NEMA 4 Junction Box with Transition Busbars Rails, Side and Back 11'-4" Flip Down/Up Ladder 40'-10.0" Figure 4. System Layout and Dimensions 3
4 Technical Data TD027002EN Natural gas extraction Source 1 Source 2 Metering CTs VFI Switchgear Main 25 kv, 900A VFI Switchgear #1 25 kv, 900A, Four Feeders VFI Switchgear #2 25 kv, 900A, Four Feeders Fifty percent savings on future relocation costs, 15 percent savings over conventional design, 25 percent savings in space, and increase in cash flow due to a quickly commissioned substation. Configured for supplying electrical loads for sites that extract ground water embedded with natural gas, this MITS application is a different way of building substations for the mining industry. Using a skidbased platform, the MITS reduces the footprint and can provide a cost savings over a typical installation. Eaton s modular substation is designed to be relocated to a new site after its service is completed at the existing site. The ability to move the entire substation without complete disassembly can provide customers with substantial benefits over conventional substation installations. Viewing loads and status of equipment in harsh, remote environments often requires a long drive across difficult terrain. Eaton provides RTU cabinets populated with IEDs and SCADA equipment to meet most specifications. This contributes to cost and time savings for maintaining valuable equipment. Primary Metering Compartment 14, V VTs Figure 5. System Schematic 50 kva Station Service HV: 14,440GY LV: 240/120V Primary Metering Compartment 14, V VTs Distribution Panel 8'-6.0" 38'-0" Relay Cabinet Specified Metering and SCADA Equipment Feeder Protection Relays 25 kv Padmounted Switchgear 50 kva Station Service Voltage 7'-3" Feeder Switchgear #2 Main Switchgear Feeder Switchgear #1 1'-9" Figure 6. System Layout and Dimensions 4
5 Technical Data TD027002EN Utility substation Substation 9375/10,500 12,468/13,965 kva HV: 22.9 kv Delta LV: 13.8Y/7.97 kv 55/65 C, ONAN/ONAF Regulator and Recloser Bypass 15 kv Model 10T RVAC Switchgear 2 Source / 2 Taps with Tie Switch Visible Break on All Sources and Taps Regulators (3) 500 kva 7620V, 656A (Operated at 7970V) S L Modular design can be used at many locations, is completely integrated, provides on-board spill containment, and is transportable. Driven by the need to cut the cost of installed substations and to create a modular design concept, this customer turned to Eaton s MITS solution. The conventional substation consisted of overhead distribution, transformation, and feeder protection. In addition, each substation required the site to be prepared for oil containment in the event of a leak. In this example, Eaton provided solutions to the customer s requirements and allowed the use of this modular solution at several sites throughout the electrical grid. 15 kv Recloser (1) Three-Phase NOVA (Solid Dielectric) Tamper-Resistant Outdoor Enclosure Figure 7. System Schematic 15 kva Station Service HV: 13,800GY LV: 120/240V Locking Pump Access for Oil Removal Access Hatch Radiators Weep Holes Located Directly Under Fins 120/240V Distribution Panel 15 kva Station Weep Holes, Typ. Service Access Hatch 13'-1.3" HV Cabinet LV Cabinet 8'-6.0" Locking Pump Access for Oil Removal 34'-5.9" Control Box 15'-1.5" Substation 9375 kva HV: 22.9 kv Delta LV: 13.8Y/7.97 kv Switchgear 15 kv, 600A RVAC Model 10T Regulators 656A, 7.97 kv CL-6A Controls Recloser 15 kv, 600A Tamper-Resistant Enclosure 10'-11.0" 7'-8.4" Figure 8. System Layout and Dimensions 5
6 Technical Data TD027002EN Portable power application Metal-Enclosed Switchgear (3) 5 kv; 1200A Fused Load Interrupter Switches Metal-Clad Switchgear (1) 5 kv, 1200A Drawout Breaker Substation 5000/6250 kva HV: 11.0Y/6.35 kv LV: 3.6 kv 55/65 C, KNAN/KNAF Quick delivery, fully integrated, transportable, and a single point of contact for project management. Furnished for the U.S. government, this MITS skid provides quick and reliable portable power for emergency applications. The need for this project was to step up voltage supplied by generators from 3.6 kv to 11 kv. The application has a variety of self-protecting features, and is quick to install and commission. Metal-Clad Switchgear (5) 15 kv, 1200A Drawout Breakers Notes: 1. All Breakers Controlled by: Feeder Protection Relays 2. Differential Protection Scheme for : Relay Figure 9. System Schematic 8'-2.8" H0 H1 H2 H3 X1 X2 X3 37'-11.4" 15 kv Class Switchgear Lineup Horn Substation 5000/6250 kva HV: 11,000Y/6350V LV: 3600V Delta 5 kv Class Switchgear Lineup Lbs 10'-1.9" Figure 10. System Layout and Dimensions 6
7 Technical Data TD027002EN Small substation 5000 kva HV: 34.5Y/19.9 kv LV: 13.2Y/7.62 kv 55 C, ONAN 87 DIFF. Protection Relay Primary Metering Compartment PTs and CTs Substantial saving over conventional substation design, 25 to 30 percent savings in project management, and over 60 percent smaller footprint than conventional substation design. Installed in the western part of the U.S., this application combines two MITS skids that will provide dual functionality. Initially, the skids will step up voltage from 13.2 kv to 34.5 kv, and distribute voltage onto the transmission lines. At some point in the future, the customer plans to use these skids in the reverse fashion and step 34.5 kv down to 13.2 kv. Included with each skid is an Eaton differential protection relay used to trip the NOVA recloser and an upstream device. Recloser (1) 35 kv, 200A Three-Phase NOVA (Solid Dielectric) Tamper-Resistant Outdoor Enclosure 15 kva Station Service HV: 34.5GY/19.9 kv LV: 120/240V 48 Vdc Battery System with AC Charger Figure 11. System Schematic 48 Vdc Battery System 8'-6.0" 15 kva Station Service Control Cabinet with Relay 5000 kva HV: 34.5Y/19.9 kv LV: 13.2Y/7.62 kv 30' Primary Metering Cabinet Recloser 35 kv Three-Phase NOVA Mounted in Tamper-Resistant Enclosure 8'-6.3" Figure 12. System Layout and Dimensions 7
8 Technical Data TD027002EN Residential area substation 13 kv Recloser 25 kva Station Service HV: 13,200GY/7620 LV: 240/120 S Regulators (3) 250 kva 7620V, 328A Significantly smaller footprint than conventional substation design, safe and secure design requires no fencing, and one point of contact for entire substation. The heavily wooded terrain of a 13.2 kv to 4 kv metro area provided challenges to the utility that served local estate homes. Unit substations serving the area were several decades old, had become heavily loaded, and lacked needed and overlooked maintenance. A new Eaton MITS was the best option. L 4 kv Recloser Figure 13. System Schematic Metering Enclosure 3.75 MVA Distribution Panel 8'-6" 15 kva Station Service 40' 6" Typ. 13 kv Recloser 250 kva Regulators (3) 4 kv Recloser 8'-6.5" 18.5 Figure 14. System Layout and Dimensions 8
9 Technical Data TD027002EN Lightning damaged substation VFI 34,500 12,470Y/7200V 5000 kva, ONAN 65ºC SA SB LB S L Regulators (3) 250 kva 7620V, 328A Twenty-five percent savings on installed cost, and rapid and efficient installation and recovery time. This design offers the perfect solution for a customer needing to replace a 5 MVA storm-damaged substation fast. Eaton mounted and pre-wired a 5 MVA transformer, three pad-mounted regulators, a station service transformer, switchgear, and controls on a single structural steel platform. The customer pre-installed the ground grid, the MITS foundation, the incoming circuits, and the outgoing circuits. Total field install time of the MITS assembly was less than four hours. Power to a town and surrounding community was restored in record time, and at a total installed cost 25 percent below conventional methods. LA Sectionalizing Cabinet CL-6 15 kv Reclosers (3) Figure 15. System Schematic H1A/H1B 15 kva Station Service Single-Phase HV: 7620GY LV: 240/120V 15 kva Service Station Sectionalizing Cabinet Control Service Enclosure 8'-6" 40'-0" 15 kv Reclosers 250 kva Regulators 5 MVA 9'-7.5" Figure 16. System Layout and Dimensions 9
10 Technical Data TD027002EN Rural substation Skid 1 15 kv Recloser Auto- 10 MVA HV: 24,940Y/14,400V LV: 13,800Y/7960V Type PWVE 25 kv Reclosers (2) Type RVAC-13A 25 kv Switchgear 250 kva Regulators (3) S SA T1 VB2 SW2 SW1 VB1 LA LB L SB S Quick implementation with minimal disruption to the customer and the existing landscape. A substation was needed to serve a remote industrial load. Because of the unique transformer design, it was acquired through a third party and installed on a separate structural steel platform along with a high-side recloser, which serves as a switch and protection device. To achieve cooling requirements, fans were required on the transformer. (The external transformer cooling fans no longer make the assembly tamper-proof; therefore, fencing is required.) A second structural steel platform was used to pre-install and test three singlephase, pad-mounted voltage regulators, switchgear, a control center, and a station service transformer. The platforms were interconnected at the job site and the completed assembly, as an integrated whole, did not affect the integrity of this finished product. Surface grading to level the area would have been required for a concrete foundation. Instead of the concrete foundation, steel pillars were installed at weight-bearing points under the entire MITS assembly to elevate the structure from ground level. T2 VB3 SW3 Figure 17. System Schematic H1A/H1B Skid 2 25 kva Station Service HV: 24,940Y/14,400V LV: 240/120V Type PWVE 25 kv Reclosers (2) 8'-6" 37'-0" 25'-0" 25 kva Station Service HV: 24,940Y/14,400V LV: 240/120V Control Service Enclosure RVAC 13A 25 kv Switchgear 250 kva Regulators (3) PWE Recloser 10'-3" 11'-9.5" Skid 2 Skid 1 Figure 18. System Layout and Dimensions 10
11 Technical Data TD027002EN 11
12 Technical Data TD027002EN Eaton 1000 Eaton Boulevard Cleveland, OH United States Eaton.com 2014 Eaton All Rights Reserved Printed in USA Publication No. TD027002EN / Z15034 March 2014 Eaton is a registered trademark. All other trademarks are property of their respective owners.
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