IEEE 1300-1996 pdf download

01-07-2023 comment

IEEE 1300-1996 pdf download IEEE Guide for Cable Connections for Gas-Insulated Substations
1.Overview
Connection of a gas-insulated substation (GIS) to cables typically requires the coordination of design, materialsupply, installation, and test procedures of several different parties. This guide provides detailed directions forsuch coordination and establishes preferred dimensions for mechanical and electrical interchangeability forvoltage classes of 69 kV and above. The general principles are applicable at all voltage levels.
2. References
The following publications should be used in conjunction with this guide:IEC Publication 859 (1986), Cable Connections for Gas-Insulated Metal-Enclosed Switchgear for RatedVoltages 72.5 kV and Above.
IEEE Std 48-1990, IEEE Standard Test Procedures and Requirements for High-Voltage Alternating-CurrentCable Terminations(ANSI).2
IEEE Std 575-1988, IEEE Guide for the Application of Sheath-Bonding Methods for Single-ConductorCables and the Calculation of Induced Voltages and Currents in Cable Sheaths (ANSI).
IEEE Std C37.122-1993,IEEE Standard for Gas-Insulated Substations (ANSI).
IEEE Std C37.122.1-1993,IEEE Guide for Gas-Insulated Substations (ANSI
3. Definitions
The definitions in this clause are applicable only to the subject treated in this guide. Figure 1 illustrates theparts of a cable connection assembly for gas-insulated substations that are defined in this clause.
3.1 cable connection assembly: The combination of the cable termination with the cable connectionenclosure,GIS conductor end, and removable conductor link.
3.2 cable connection enclosure: The part of the GIS that surrounds the cable termmination
3.3 cable termination: Parts assembled onto the end of the cable to provide the electrical and mechanicalinterface into the gas-insulated environment, Typically this includes a solid insulation barrier between thecable/cable fluid and the gas insulation of the GIS.
3.4 conductor current connection interface: The connection for transfer of conductor current from theGIS conductor to the cable termination
3.5 GIS conductor end: The end of the GIS high-voltage conductor inside the cable connection enclosure.
3.6 removable conductor link: A removable connector between the GIS conductor and the end of the cabletermination.
4. Limits of supply
The usual limits of supply for each party are shown in figure 2 for one type of construction frequently usedfor extruded dielectric cables, and in figure 3 for a type of construction frequently used for high-pressurefluid filled cables (HPFF). Similar limits of supply apply to self-contained fuid flled (SCFF) and low-pressure fuid flled (LPFF) cables.
6.Ratings
The following should be specified and considered in design of the cable connection, and values should bechosen from IEEE Std 48-1990,’ with due consideration being given to gas-insulated switchgear (GIS)ratings from IEEE Std C37.122-1993.
Voltage–kV rms phase-to-phase
Basic insulation level–kV peak
Continuous current–A rms
Short-time current–A rms for 1 s or 3 s
Peak short circuit current–kA peak
Maximum dielectric fluid pressure for cable system–kPa
Power frequency factory withstand voltage–kV rms phase-to-ground
GIS power frequency feld withstand voltage-kV rms phase-to-groundDC (or ac) cable test voltage–kV dc (or ac) phase-to-groundField test voltage for cable or pipe coverings (cable jacket or corrosion protective pipe covering)
Of the preceding list items, continuous current, short-time current, peak short circuit current, and maximumdielectric fuid pressure for cable system are system dependent and should be referred to the cabletermination manufacturer.
7. Temperature rise and conductor contact surfaces
The connection interface shown in figures 2 and 3 should be designed so that the conductor contact interfacetemperature shall not exceed 70 °C at the rated current of the cable. There should be no dependence on heattransfer from the GIS-conductor end to the cable.
Conductor contact interface surfaces, if aluminum,should be treated with a conductive plating or coating toensure long term stability of current transfer. In all cases care should be taken to ensure a reliable contact andfield measurement of resistance after assembly is recommended.

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