HB1 Generator Switchgear up to 72 kA

HB1 Generator Switchgear HB1 GBS HB1 GCB Generator Switchgear up to 72 kA Generator switchgear for power plant up to 170 MW HB1 Generatorschaltanlage Generatorschaltanlage bis 72 kA Generatorschaltanlage für Kraftwerke bis 170 MW

Rated nominal current up to

10 A

Integrates protection system of the auxiliary transformer
High personal and operational safety due to Internal Arc classification up to IAC A FLR 72 kA 0.1 s
Suitable for all type of connection
Indoor and outdoor application

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Product information Siemens HB1 is a state-of-the-art generator switchgear designed to increase the selectivity of your power unit by integrating the protection system of the auxiliary transformer. It´s rated for application up to 6,700 A and short circuit ratings up to 72 kA. With its air-insulated, metal-enclosed and non-phase segregated design, this generator switchgear integrates vacuum generator circuit-breaker (tested as per IEC/IEEE 62271-37-013) and optionally line disconnecting switch, earth disconnecting switch on generator side and/ or transformer side, instrument transformers, surge arrester(s), start-up disconnecting switch, protection of auxiliary transformer and/ or excitation transformer feeder.

Compact and comprehensive:

The integration of auxiliary and/or excitation transformer feeders make it the ideal solution for costs, space and interface savings.
Suitable for indoor and outdoor installation
Wide range of interfaces with surrounding equipment: bus ducts, cable, solid insulated busbars and IPB.
Connection from all direction
Arc fault-tested
High personal and operational safety due to Internal Arc Classification up to 1 sec.
Type tests performed on fully equipped switchgear
Maintenance-free

Electrical data

Rated
Voltage	kV	12	17.5	24
Frequency	Hz	50/60	50/60	50/60
Short-duration power-frequency withstand voltage	kV	28	50	60
Lightning Impulse withstand voltage	kV	75	110	125
Short-time withstand current	kA/s	50/3 63/1 72/1	50/3 63/1 72/1	50/3 63/1 72/1
Peak withstand current	kA	125/137¹⁾160/173¹⁾180/198¹⁾200²⁾	125/137¹⁾160/173¹⁾180/198¹⁾200²⁾	125/137¹⁾160/173¹⁾180/198¹⁾200²⁾
Normal current of feeders: Generator / Transformer feeder 3150 A VGCB Generator / Transformer feeder 4000 A VGCB Generator / Transformer feeder 5000 A VGCB Generator / Transformer feeder 6300 A VGCB	A A A A	IP4X³⁾IP54⁴⁾ 2900 2300 4200 3300 5200 3700 6700 4700	IP4X³⁾IP54⁴⁾ 2900 2300 4200 3300 5200 3700 6700 4700	IP4X³⁾IP54⁴⁾ 2900 2300 4200 3300 5200 3700 6700 4700

^{1) Values for 60 Hz

2) Values on request

3) Also with IP41, IP42

4) Also with IP55 for outdoor use}

Mechanical data


Switchgear Design	IEC
Dimensions	4,000 x 1,800 x 2,500 mm ( W x D x H )
Internal arc classification	AC A FLR 63 kA (1s) / 72 kA (0.1s)
Connection method	Cable Bus duct Solid insulated busbar Isolated Phase Busbar ( IPB )
Degree of Protection	IP4X, IP41, IP42, IP54, IP55