Indoor vacuum circuit breaker Generator circuit breaker up to 63kA and 15 kV - Experts Electrical

English
RFQ

Download the app

Indoor vacuum circuit breaker Generator circuit breaker up to 63kA and 15 kV

discuss personally

Model

Basic info Product Detail Supplier

Basic info

Brand	ABB
Model NO.	VD4G generator circuit breaker Small footprint, full protection for generator applications
Rated voltage	15kV
Rated normal current	1250A
Rated frequency	50/60Hz
Series	VD4G

Product Detail

Description：

ABB offers its new vacuumgenerator circuit breakers at 15 kV,4000 A, 63 kA in accordance to thenew Dual Logo IEEE/IEC 62271-37-013 standard to satisfy yourbusiness needs in power generation applications.

Features：

Protect your assets

Use a solution completely inaccordance with the latest global standards - IEC as well as IEEE
Count on a generator circuit breakersuitable for all highly demanding conditions, including out-of-phase condition and island mode
Be safe thanks to a completely testedsolution for DC-component up to130%, so no need to add any time delay in the protection

Maximize your output

Experience the easy installation/integration of VD4G, thanks to itsinterfaces and dimensions equivalentto the standard version VD4
Accelerate your projects with theoutstanding technical support grantedby our Field Application Engineeringm team

Optimize your investment

Choose ratings that fit your needs from 25/16 kA @ 15 kV to 63/50 kA @ 15 kV
Take advantage of using the samecompact switchgear setup like inpower distribution systems

Technical characteristics：

Standards IEEE/IEC 62271-37- 013

Know your supplier

ABB

As an authorized distributor of ABB products, we take great pride in our partnership.

Main Categories

High voltage/Low voltage

Business Type

Sales

Highest Annual Export (USD)

$580000000

Professional Experience

11 years

Workplace

20000m²

占位

占位

Documents

Public.

VD4G generator circuit breaker Small footprint, full protection for generator applications

Manual English

FAQ

Q： What is a generator circuit breaker?: A： A generator circuit breaker (GCB) is a specialized switchgear device used in power generation systems to safely connect or disconnect a generator from the electrical grid or load. It is designed to interrupt high fault currents, protect the generator from overloads, short circuits, and other electrical faults, and ensure reliable operation during normal and abnormal conditions.

Related Knowledges

Failure Analysis and Design Optimization of Conventional Grounding Transformers

Failure Analysis and Design Optimization of Conventional Grounding Transformers

I. Core Cause of Damage: Electrodynamic Impact (Complying with GB/T 1094.5 / IEC 60076-5)The direct cause of high-voltage winding end collapse is the instantaneous electrodynamic impact induced by short-circuit current. When a single-phase grounding fault occurs in the system (such as lightning overvoltage, insulation breakdown, etc.), the grounding transformer, as the fault current path, withstands high-amplitude and steep-rise-rate short-circuit currents. According to Ampère's force law

Analysis of Grounding Transformer Operational Behavior Under System Single-Phase-to-Ground Fault Conditions

Analysis of Grounding Transformer Operational Behavior Under System Single-Phase-to-Ground Fault Conditions

1 Theoretical AnalysisIn distribution networks, grounding transformers serve two key roles: powering low - voltage loads and connecting arc - suppression coils at neutrals for grounding protection. Grounding faults, the most common distribution network fault, heavily impact transformers’ operating characteristics, causing sharp changes in electromagnetic parameters and status.To study transformers’ dynamic behaviors under single - phase grounding faults, build this model: Assume a tr

Design Calculations for Neutral Grounding Schemes and Grounding Transformer Sizing in Utility-Scale Solar PV Plants

Design Calculations for Neutral Grounding Schemes and Grounding Transformer Sizing in Utility-Scale Solar PV Plants

1 Classification of Neutral Grounding Methods for Solar Photovoltaic Power StationsInfluenced by differences in voltage levels and grid structures across regions, the neutral grounding methods of power systems are mainly categorized into non-effective grounding and effective grounding. Non-effective grounding includes neutral grounding via arc suppression coils and neutral ungrounded systems, while effective grounding comprises neutral solid grounding and neutral grounding via resistors. The sel

Zero-Sequence Impedance Characterization of Dry-Type Grounding Transformer with ZN Connection

Zero-Sequence Impedance Characterization of Dry-Type Grounding Transformer with ZN Connection

In a neutral-insulated three-phase power system, an earthing transformer provides an artificial neutral point, which can be solidly earthed or earthed via reactors/arc suppression coils. The ZNyn11 connection is typical, where zero-sequence magnetomotive forces in the inner/outer half-windings of the same core column cancel out, balancing fault currents in series windings and minimizing zero-sequence leakage flux/impedance.Zero-sequence impedance is critical: it determines fault current magnitud

Case Analysis on Maloperation of Grounding Transformer Overcurrent Protection Relay

Case Analysis on Maloperation of Grounding Transformer Overcurrent Protection Relay

The neutral grounding mode refers to the connection between the power system neutral point and ground. In China's 35 kV and below systems, common methods include ungrounded neutral, arc-suppression coil grounding, and small-resistance grounding. The ungrounded mode is widely used as it allows short-term operation during single-phase grounding faults, while small-resistance grounding has become mainstream for its fast fault removal and overvoltage limitation. Many substations install grounding tr

Discussion on the Design of Low Zero-Sequence Impedance Grounding Transformers

Discussion on the Design of Low Zero-Sequence Impedance Grounding Transformers

With the expansion of power system scale and the cableization process of urban power grids, the capacitive current in 6kV/10kV/35kV power grids has significantly increased (generally exceeding 10A). As power grids at this voltage level mostly adopt neutral ungrounded operation mode, and the distribution voltage side of main transformers is usually in delta connection, lacking a natural grounding point, the arc during ground faults cannot be reliably extinguished, necessitating the introduction o

商品视频播放