ABB Electrical OT63E3 Disconnector Switch

ABB Electrical OT63E3 Disconnector Switch

ABB Electrical OT63E3 Disconnector Switch is a disconnecting switch, the following is its detailed description:

Basic Parameters :

Rated current: 63A.

Number of poles: 3 poles.

Performance characteristics:

Installation Flexibility: Can be installed in any direction, different mounting methods, modular design and a wide range of accessories to give the product installation flexibility, to adapt to the needs of a variety of installation scenarios.

Adaptability to harsh environments: The OT disconnectors can be used in harsh environments and maintain high performance and reliability under different environmental conditions.

Conformity to standards: The products comply with various standards such as IEC/UL, which ensures their universality and compliance in the international arena.

Areas of application: Suitable for a wide range of applications such as mechanical equipment, power distribution, switchgear, motor control centres and photovoltaic systems.

Service and Maintenance

• Only qualified personnel should carry out repairs. 

• The agreed warranty applies. 

• Before carrying out any cleaning or maintenance operations, disconnect the equipment from the electrical supply. 

• Clean the display and surrounding front cover with a soft cloth and mild detergent. 

• Replacing the battery incorrectly may result in explosion. Only use batteries recommended by the supplier. During the warranty period, the battery needs to be replaced by an authorized ABB service center

FEATURE

• Low-impedance busbar protection 

• Stub and T-zone protection 

• High functional reliability due to two independent measurement criteria: 

- stabilized differential current algorithm 

- directional current comparison algorithm 

• Phase-by-phase measurement 

• Reduced CT performance requirements 

• High through-fault stability even in case of  CT saturation 

• Full solid-state busbar replica 

• No switching of CT circuits 

• Only one hardware version for  

- 1 and 5 A rated currents 

- all auxiliary supply voltages between  48 V DC and 250 V DC 

- nominal frequencies of 50, 60 and  16.7 Hz 

• Short tripping times independent of the  plant’s size or configuration 

• Centralized layout: Installation of hardware  in one or several cubicles 

• Distributed layout: Bay units distributed  and, in the case of location close to the  feeders, with short connections to CTs, isolators, circuit breakers, etc. 

• Connections between bay units and central  unit by fiber-optic cables 

- maximum permissible length 1200 m  

- for distributed and centralized layout 

• fiber-optic connections mean interference proof data transfer even close to HV power  cables 

• Replacement of existing busbar protection  schemes can be accomplished without restrictions (centralized layout) in the case of  substation extensions e.g. by a mixture of  centralized and distributed layout 

• Easily extensible