The N series motor protection relays from NewElec offer a wide variety of alternative mounting solutions within the 5 to 550 amp range in amp calibration or any current range in the percentage calibration. These include CT module block, chassis or flush door mounting. N Series relays are designed for simplicity without compromising reliability. The relays offer coordinated tripping on potentially high energy faults, ensuring that the main contactor is not used to clear such faults. A duplication of trip and fault annunciating NO contacts provides control rooms with a hard-wire solution for information and reset possibilities.
The relays are housed in a versatile enclosure which caters for door mount, chassis mount or CT module mounting. Protection features include selectable thermal curves (Class 5 – 32.5) with thermal pre-loading to match the safe hot and cold stall times of the motor during operation.
N Series relays are designed to IEC 60255-8 and provide overload protection for cyclic or sustained loads, as well as unbalanced current, single phasing, earth leakage and earth fault protection. The user has the option of transferring the trip to the incoming MCCB to prevent the contactor opening on high energy faults, ensuring type 2 co-ordination.
Half brick second generation converter Vepac Electronics
Electrical Power & Protection
The Supreme series half brick second generation converter from Vepac is composed of isolated, board-mountable, fixed switching frequency DC-DC converters that use synchronous rectification to achieve extremely high power conversion efficiency.
Read more...Multimeters: the perfect entry-level choice Comtest
Electrical Power & Protection
Experience the precision, durability and safety of professional-grade test tools with the entry level Fluke 15B+ and 17B+ digital multimeters.
Read more...South Africa can become an important EV manufacturer
Electrical Power & Protection
A year ago, South Africa was mired in loadshedding, with the importance and relevance of electric vehicles (EVs) far from the public imagination. Fast forward a year and much has changed
Read more...Self-contained standalone lightning warning system Senseca
Electrical Power & Protection
Biral, now part of the Senseca Group, and a specialist in environmental and meteorological measurement instrumentation, has launched its BTD-200 lightning warning system, which is a complete detection and warning system.
Read more...Taking the pain out of panel building Omron Electronics
Electrical Power & Protection
Panel building stands as a cornerstone of industrial automation, shaping the efficiency and reliability of automated systems across different and diverse industries, from manufacturing to infrastructure. Omron leverages over 80 years of experience to furnish OEMs and builders with cutting-edge control panel solutions.
Read more...Powerless is not an option
Electrical Power & Protection
When the power goes out it is important for commercial and tertiary facilities to be able to keep essential electrical equipment running. UPS systems are critical for transitioning and emergency backup power.
Read more...Securing the power supply
Electrical Power & Protection
Grid management systems are the linchpin of modern transmission and distribution networks. To understand the intricacies of grid management, it is necessary to unpack its core components: scada systems, energy management systems, outage management systems and wide area management systems.
Read more...Powering sustainable mining operations in Africa
Electrical Power & Protection
Africa’s mining sector is at a crossroads and, as the industry grapples with mounting pressure to drive operational efficiency within the boundaries of sustainability, natural gas is emerging as a compelling solution.
printer friendly version