Speedfax 2017
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Speedfax 2017

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Siemens Unit Substation Solutions Switchboard Substation Secondaries 14 SWITCHGEAR Product Overview Siemens modular front connected switchboard design provides a broad range of features and capabilities for a wide range of applications. Every aspect of design of Siemens switchboards has been aimed at improving layout convenience, reducing installation costs and minimizing the impact and cost of changes to the system. Siemens switchboards provide a rugged design and the flexibility necessary in electrical systems for all types of applications, some examples are: n Industrial plants n High-rise complexes n Hospitals n Commercial buildings Standards and Certifications Siemens switchboards are designed, tested and constructed in accordance with: n UL891 – Switchboards n NEMA PB-2 n Seismially qualified n Other equipment is UL listed as applicable Features & Benefits Siemens switchboards ratings and features include: n Up to 6000 ampere main bus rating n Up to 600 volts AC n Bus bracing up to 200KAIC n Copper or aluminum bussing n Temperature or density rated bussing n Type 1 and Type 3R enclosures n Main and branch circuit breakers and fusible switches n Thermal magnetic and solid state circuit breakers n Surge protective devices n Utility metering provisions n ACCESS power monitoring on mains and branches n Ground fault protection on mains and branches n Busway and transformer connections n Protective relaying n Two and three device autothrowover scheme Further Switchboard Information See Section 13 for complete details concerning SB3 front-connected switchboard unit substation secondaries. 14-48 Siemens Industry, Inc. SPEEDFAX Product Catalog

Siemens Unit Substation Solutions Indoor Dry Type Transformer Diagrams Indoor - dry transformer 92.0 (2,337) Swgr gnd (X0) Five PEM nuts 3/ 8 -16 for joining switchgear with transformer 9.0 9.0 (229) (229) H1 H2 H3 (X1)(X2) (X3) 18.5 (470) 56.0 (1,422), 62.0 (1,575), 72.0 (1,829), or 82.0 (2,083) transformer to left of switchgear (flush front transformer mounting) A 36.0 (914) A Five PEM nuts 3/ 8 -16 for joining switchgear with transformer 9.0 9.0 (229) (229) H1 H2 H3 (X3)(X2) (X1) 18.5 (470) Swgr gnd (X0) 92.0 (2,337) 56.0 (1,422), 62.0 (1,575), 72.0 (1,829), or 82.0 (2,083) transformer to left of switchgear (flush front transformer mounting) 14 SWITCHGEAR Footnotes: 1. This arrangement applies to indoor SIEBREAK switch 5 kV-15 kV up to 1,200 A termination with dry-type transformer termination. 2. Filler strips at the ends of the transformer must be provided by the transformer supplier in case the transformer exceeds 92” (2,337 mm) height and 56” (1,422 mm) depth. 3. If cables are to be used for connections to transformer, transformer supplier to provide and install cable connections including lugs and insulation on terminals if required. Maximum 2 x 500 kcmil cables per phase. 4. If bus bars are to be used for connections to transformer, transformer supplier to provide and install required bus connections. Transformer supplier also to provide and install flex connectors for connections to switchgear as well as insulation for flex connectors. 5. Connect switchgear ground when continuous ground is required. 6. Transformer supplier to provide necessary hardware (except PEM nuts) for joining switchgear with transformer. Siemens Industry, Inc. SPEEDFAX Product Catalog 14-49

Siemens Unit Substation Solutions<br />

Switchboard Substation Secondaries<br />

14<br />

SWITCHGEAR<br />

Product Overview<br />

Siemens modular front connected<br />

switchboard design provides a broad<br />

range of features and capabilities for<br />

a wide range of applications.<br />

Every aspect of design of Siemens<br />

switchboards has been aimed at<br />

improving layout convenience,<br />

reducing installation costs and<br />

minimizing the impact and cost of<br />

changes to the system.<br />

Siemens switchboards provide a<br />

rugged design and the flexibility<br />

necessary in electrical systems for all<br />

types of applications, some examples<br />

are:<br />

n Industrial plants<br />

n High-rise complexes<br />

n Hospitals<br />

n Commercial buildings<br />

Standards and Certifications<br />

Siemens switchboards are designed,<br />

tested and constructed in accordance<br />

with:<br />

n UL891 – Switchboards<br />

n NEMA PB-2<br />

n Seismially qualified<br />

n Other equipment is UL listed as<br />

applicable<br />

Features & Benefits<br />

Siemens switchboards ratings and<br />

features include:<br />

n Up to 6000 ampere main bus rating<br />

n Up to 600 volts AC<br />

n Bus bracing up to 200KAIC<br />

n Copper or aluminum bussing<br />

n Temperature or density rated bussing<br />

n Type 1 and Type 3R enclosures<br />

n Main and branch circuit breakers and<br />

fusible switches<br />

n Thermal magnetic and solid state<br />

circuit breakers<br />

n Surge protective devices<br />

n Utility metering provisions<br />

n ACCESS power monitoring on mains<br />

and branches<br />

n Ground fault protection on mains and<br />

branches<br />

n Busway and transformer connections<br />

n Protective relaying<br />

n Two and three device autothrowover<br />

scheme<br />

Further Switchboard<br />

Information<br />

See Section 13 for complete details<br />

concerning SB3 front-connected<br />

switchboard unit substation<br />

secondaries.<br />

14-48<br />

Siemens Industry, Inc. SPEEDFAX Product Catalog

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