Pfisterer IXOSIL EST SUB | Dry Cable Terminations Self-Supporting with Surge Arrester (HV 132kV 170kV)

Pfisterer IXOSIL EST SUB

Pfisterer Ixosil EST SUB 132kV 170kV

Dry Type Self Supporting Cable Termination with Surge Arrester

The new dry type self supporting cable termination IXOSIL EST SUB is now available with an integrated surge arrester – this combined product is available for voltage classes 123kV – 170kV, according to IEC 60840 and IEC 60099.

The new integrated surge arrester solution enables a compact and cost effective installation. The surge arrester is used as the fixing point for the cable termination and eliminates the need of any additional supporting or connecting devices.

The surge arrester and supporting elements can be installed separately on the steel structure, while the termination can be fitted on the ground and mounted to the surge arrester afterwards. The surge arrester is of a standard cage type and the termination itself is the same as the well proven IXOSIL ESF and IXOSIL EST type.

An optional “surge counter” kit is available for high voltage power systems and networks.

Dry Type Outdoor Cable Terminations

Dry-type outdoor cable terminations are the technology for the future – geared toward stable networks and a secure power supply. All PFISTERER products are insulated exclusively with solid silicone. This has several advantages – the dry-type IXOSIL range terminations contain no liquid, they are lighter and easier to transport and quicker to install than conventional high voltage cable terminations.

The IXOSIL ESF / EST Dry Cable Termination range now includes:

IXOSIL ESF 52-170kV – dry flexible cable termination
IXOSIL EST SUB 52-170kV – dry self-supporting for substation terminations
IXOSIL EST 72-170kV – dry self-supporting cable terminations for towers
IXOSIL EST SUB SA/SAC 123-170kV – dry self-supporting with integrated surge arrester

Pfisterer IXOSIL EST SUB with Surge Arrester

Ixosil EST SUB Cable Termination Advantages

Oil- and gas-free, lightweight
Leak-proof cable termination
Compensation of cantilever forces
Enables installation on the ground, no mounting frames required
Time savings of up to 50% during cable preparation thanks to new technology

Dry Type Self Supporting Cable Termination with Surge Arrester

Technical Data

Contact Thorne & Derrick for assistance with the Design, Specification, Selection or Supply of HV Cable Accessories to enable the jointing, termination, connection or sealing of power cables at 66kV/132kV/170kV – Thorne & Derrick also distribute the most extensive range of MV Medium Cable Joints, Terminations & Connectors (11kV/33kV) from manufacturers including 3M, Prysmian, Nexans Euromold, Elastimold, Pfisterer CONNEX & SEANEX.

Heat shrink, cold shrink, push-on and slip-over cable accessories enable the jointing, terminating and connection of 11kV-33kV and 66kV cables to oil, air or gas insulated switchgear, transformers, turbines, motors and overhead lines distributing electricity at medium/high voltages.

More High Voltage Cable Terminations from PFISTERER

High Voltage Cable Termination
Description	EST123 C31 SUB SA/SAC EST123 C39 SUB SA/SAC EST145 C37 SUB SA/SAC EST145 C45 SUB SA/SAC EST170 C43 SUB SA/SAC
Max. operating voltage Um [kV]	123	145	170
Standards	IEC 60840:2011 IEC 60815:2008	IEC 60840:2011 IEC 60815:2008	IEC 60840:2011 IEC 60815:2008
Rated voltage U [kV]	110 – 115	132 – 138	150 – 161
Rated lightning impulse withstand voltage (BIL)	550	650	750
Partial discharge measurement [pC]	< 5	< 5	< 5
Conductor cross-section area [mm²]	115 – 2500	240 – 2500	240 – 2000
Diameter across cable insulation (prepared) [mm]	46 – 115	46 – 115	52 – 115
Minimal creepage distance [mm]	3075 / 3814	3625 / 4495	4250
Pollution class	3 / 4	3 / 4	3
Pollution class [mm/kV]	25 / 31	25 / 31	25

Integrated High Voltage Surge Arrester

Solid earthed grid (SA)
Rated voltage Ur [kV]	96	120	144
Continuous operating voltage Uc [kV]	77	96	115
Coil earthed grid (SAC)
Rated voltage Ur [kV]	154	181	212
Continuous operating voltage Uc [kV]	123	145	170
Common data (SA/SAC)
Nominal discharge current [kA]	10	10	10
High current impulse (4/10) [kA]	100	100	100
Long duration current impulse	1000 A / 2000 μs	1000 A / 2000 μs	1000 A / 2000 μs
Line discharge class	3	3	3
Rated short circuit current [kA]	max. 63	max. 63	max. 63
Specified energy withstand acc. IEC 60099-4 [kJ/kVUr]	6.7	6.7	6.7

PFISTERER dry cable terminations

PFISTERER dry cable terminations are proven and well-thought-out products for substations and high voltage transmission towers at voltage levels from 52kV to 170kV.

Variants include self-supporting cable terminations, flexible cable terminations and terminations with integrated surge protection. With this portfolio, custom requirements can be implemented extremely cost-effectively, and precisely matched to the respective location.