Etap Cable Library

[Rosalie Checca]

Thisdocument discusses cable pulling features in ETAP software. It describes key features like integrating cable pulling with the one-line diagram and underground raceway cables. The software allows pulling multiple cables with any pull geometry and considers the ETAP cable library. It can calculate pulling tensions, maximum tensions limited by sidewall pressures, and percent conduit fill. The software also evaluates possible conduit jamming and provides summary/alert windows and reports. An example is presented demonstrating how to create a cable pulling presentation in ETAP and fix problems by increasing bend radii.Read less

ID Name: Uniquely identifies the cable. This ID name is sometimes referred to as the cable name, and can be up to 12 characters long. The names default to C-1, C-2, C-3, and so on as you enter new cables on the one-line diagram, but you can change those names later if needed.

Show Entire Line: This box is selected by default and causes the entire line to be displayed. By clearing the check box, the line is only shown as a short section at each end with labels indicating the bus to which the other end is attached.

No/Phase: Total number of cables modeled. The default of one (1) means one conductor per phase. Two (2) means two conductors in parallel per phase, and so on. When two or more conductors are in parallel, the impedance of the circuit is decreased by that factor. The impedances shown in the dialog box are for one conductor only, and are not based on the No./Phase field, so if you enter these values instead of using Calculate, make sure they are for one conductor only. This lets you easily check handbook values without additional arithmetic. The per-unit impedances listed in a database report considers the total number of conductors.

Impedances are described as Ohms/1000 feet, Ohms/KM or PU. Zero sequence impedances are described as the positive sequence impedance using a Z0/Z1 multiplier by Kaufmann1Let's Be More Specific About Equipment Grounding, R.H. Kaufmann, General Electric Co., GER 1974, specifically, on page 7.

Rating: Conductor rating in amperes. If you use Calculate, this value is retrieved from the device library and is for one conductor. You need to input the proper rating. The 75(C) rating is shown, to indicate lug ratings, below the rating field if calculate is used to determine the rating (low voltage only). You can derate cable Amp rating based on ambient temperature and the number of conductors in conduits or raceways by specifying the Ambient Temp and the Duct Config field in the Specification 2 tab of the dialog box. For the Ambient Temp derating to take effect, you need to specify the derating standard in Tools > Options > Equipment.

Calculate: Fills in computed values for the R1, X1, R0, X0, Xc, Xc0,and Rating (A) fields. You can override these values by typing in your own numbers. The calculations are based on the cable specifications and the type of ground circuit2General Electric Wire and Cable Handbook, March 31 1983.

Duct Config: This field allows for cable ampacity derating based on the number of conductors in the conduit, tray or duct. Select from D-1, D-2, and so on, which correspond to NEC Detail 1, NEC Detail 2, and so on, of the National Electric Code. If this field is left blank, a 1.0 multiplier is assumed for the ampacity calculations. The rating factors are stored in the standard device library and can be customized if needed. If you need to derate cables based on number of conductors in the conduit or tray, you can add to the library.

Ambient Temp: Ambient air temperature. This is used for ampacity derating based on the standard selected in Tools > Options > Equipment. You can choose US (based on NEC), CSA (based on CEC) or in the Options. No derating is applied when the option is .

Field Temp of Conductor (C): Temperature of the loaded conductor. This can be varied from 25C to 250C depending on the type of study being performed. Cable temperature is used in determining the resistance of the conductor. The resistance increases with the conductor temperature.

Cond Spacing: Distance between the outside insulation or jacket edges of adjacent phase conductors. This will affect the reactance calculations. All three spacings are modeled as the same or as a GMD equivalent.

Conductor Lay: Lay of the conductor, which affects the impedance. 3/C, IAA, IAS, and MAC configurations are always defined with a triangle configuration and zero spacing even if you choose a different configuration. Single conductor cables, however, can be in flat, triangle or a right triangle configuration with any spacing factor.

Type: Ground conductor type (none, interstitial, separate, or as part of a group of conductors). This choice has an effect on the zero sequence impedance calculation. See Reference 1 for more information on ground impedance calculations.

Comments:Etap is very useful for an electrical engineer, and is fantastic to model electrical systems. It allows you to complete many different types of studies, from load flow to arc flash, grounding, and many more. Certain modules are sold separately, such as the harmonic study and motor starting modules, which is fine, but can get expensive if you need all of them, but only sporadicly. Customer support has been pretty good, they will assist you when you have technical questions on how to model certain things, or if the library does not have a specific model of breaker, for example.

- Sometimes difficult to print a Single Line Diagram as intended- VFDs typical show overloaded, even if the rating of the drive matches the motor, and that issue has not been resolved, as far as I know, even if it was pointed out several years ago- Training from etap is a must to use the software properly, especially the case scenario options

Comments:I am working with Arc Flash Hazard Study to generate Arc Flash labels. Hence need to use Short-circuit, Protection co-ordination study software's as well.

I am very much impressed with the software builder keeping in mind the user flexibility and moreover libraries its tested and provides users on Electrical components like relays, breakers etc.,

User friendly, flexibility to open. Abundant library files for each electrical components like relays, circuit breakers, etc., Running the program and easy understanding of the analysis at the finger tip of the user

Hardlock dongle makes it difficult to enter the power plant in Middle east, instead it should have be software controlled dongle. In Middle east Power plants controlled by Military team it is not allowed to enter USB or pendrive or any external harddrive devices. Hence request to look into the solution of Software opening with softlock key.Even though some of Library files are available with ETAP team, it is not send as a whole package with the latest Software version, need to request the same through the ticket.When Arc Flash is running it takes couple of mins to come back to normal screen. Instead an progress bar display will help user to understand the estimated time to complete calculation.

Having dongle identification trouble. I have to reset License Manager EVERY time. The regular start cannot see it. Run LM and then I run ETAP. Printing setup could be easier to use.Having trouble with printing output not changing. I have a ticket open now on it.Would to turn off data from certain buses and lines. I do not need to see all when it turn it on in the display options. Just certain buses. It muddies the screen.TCC could be easier to use.

Comments:Etap may be very beneficial for an electrical engineer, and is remarkable to new version electric systems. It lets you to finish many extraordinary varieties of studies, from load waft to arc flash, grounding, and plenty of more. Certain modules are bought separately, along with the harmonic and motor beginning modules. It can however get high-priced in case you want all of them, however simplest sporadicly. Customer assist has been quite good, they'll help you if you have technical questions about a way to version sure things, or if the library does now no longer have a particular version of breaker, for example

Comfortable while using the software program and smooth interpretation and attractiveness of results.""It could be very beneficial & beneficial device for each electric engineer. High degree Calculations may be accomplished very precisely & with excessive degree of accuracy.""I constantly loved operating with etap due to the high-satisfactory of the software program and correct results.Plus the truth that the reviews do not appear to be from a kind creator the manner SKM looks.""Etap could be very beneficial for an electrical engineer, and is first-rate to version electric systems."

"Various variations have mistakes that provoke new releases."" Some Problems with distinct faucet changer for parralel application. Its Hard to personalize a TCCcurve.""Problems with the installation, the extrade from check model to complete model creates many problems.""It Lacks a few common products (e.g. cable library)."

3a8082e126