DILO SF6 GAS Handling Products

• 3 types of User-Machine Interface
• 4 current inputs
• 3 voltage inputs
• 10 logic inputs 8
• 8 relay outputs
• logic equation editor
• 1 Modbus communication port
• 16 temperature sensor inputs

S5X applications are identical to S4X applications, with the following additional functions: 

• Earth fault and phase overcurrent cold load pick-up 
• Broken wire detection 
• Fault locator

T5X applications are identical to T4X applications, with the following additional functions:  

• Earth fault and phase overcurrent cold load pick-up  
• Broken wire detection 

MiCOM P54x is designed for high performance overhead line and cable applications, it interfaces readily with the longitudinal (end to end) communications channels and has optional distance backup protection. Models available: MiCOM P541, MiCOM P542, MiCOM P543, MiCOM P544, MiCOM P545, MiCOM P546

The MiCOM P541-P546 series provides high-speed current differential unit protection. The P54x is designed for all overhead line and cable applications, as it interfaces readily with the longitudinal (end-end)communications channel between line terminals. The interface options support direct fibre optic, or multiplexed digital links.

Optimum selectivity is assured, as the scheme measures the currents entering and leaving the protected plant item. Instantaneous tripping results for an internal fault, with stability for any out-of-zone fault. Tripping uses a proven characteristic comparing differential current with through current, for ease of testing. Phase differential elements of this type offer consistent detection of solid and resistive faults, with optimum faulted phase selection, tripping, and indication.

A full range of back-up protection is integrated. This enhances the dependability of the protection, as hot-standby elements (such as distance zones and overcurrent) can be brought into service whenever a signalling channel outage may occur.

P543 P546 devices offer resident subcycle distance protection, to complement the powerful suite of main and backup protection already proven within the family. Full scheme, five zone distance protection is adopted from the class-leading MiCOM P443.

The P54x becomes the standard in all HV, EHV and UHV line protection applications, duplicated where dual redundant main protection is demanded. Set any combination of differential, distance, overcurrent, and reclosing, depending on the site needs.

One universal relay type instead of two or more discrete models means reduced spares holding, less training, and lower cost.

Breaker control and monitoring application
The MiCOM P544 & P546 is suitable for the complex installation and feeders controlled by two circuit breakers such as the breaker-and-a-half configurations. While MiCOM P543 & P545 are suitable for feeders controlled by a single circuit breaker.

The MiCOM Agile P541 & P542 series provide high speed current differential unit protection. They are designed for overhead line and cable applications, interfacing readily with the longitudinal (end-end) communications channel between line terminals. The interface options support direct fiber optic or multiplexed digital links.

Key features:

• Differential protection adaptable to different substation topologies: e.g. 2 or 3 terminal lines/cables, in-zone transformers, 3 pole tripping
• An ideal economy solution for distribution applications
• Small case width eases retrofitting tasks

Main characteristics:

• Choice of communication protocols (IEC 60870-5-103, Modbus & Courier)
• Time synchronization via RS485, IRIG-B (modulated/unmodulated) or opto inputs
• Harsh environment coating as standard to all MiCOM relay to protect against corrosive gases such as H₂S or SO₂
• InterMiCOM for transmitting 8 digital signals through teleprotection communication links
• 4 independent setting groups

Feeder protection relay REF615 ANSI
Reliability, security, and dependability with Relion®
The REF615 is a dedicated feeder relay perfectly aligned for the protection, control, measurement, and supervision of utility substations and industrial power systems.

REF615 is a member of ABB’s Relion® family and a part of its 615 protection and control product series. The 615 series ANSI are characterized by their compactness and withdrawable design. Engineered from the ground up, the 615 series has been designed to unleash the full potential of the IEC 61850 standard for communication and interoperability of substation automation devices.

Scope
Feeder protection for overhead lines, cable feeders, and busbar systems of distribution substations
Key benefits

Maximized capital by keeping assets working longer with designs that require less equipment and space
Enhanced safety by reducing hazards with safety-conscious designs
Increased reliability by maintaining vital operations with steady, high-quality power every minute of every day
Reduced operating costs with effective energy management and maintenance strategies
More flexible system upgrades without rewiring or changing components
Ease of integration with non-proprietary IEC 61850 communications
Key features

Drawout design
Underground, overhead cable fault detection (CFD)
High-impedance (HIZ) fault detection
Arc flash detection (AFD)
Ring-lug terminals for all inputs and outputs
Large, easy-to-read LCD