Webinars

In high risk safety applications, diagnostics and fault detection are absolutely essential. This technical webinar looks at the fundamentals of the safety monitoring relay's main functions in a safety control system, and delve into some of the measures for Diagnostic Coverage with respect to the machine safety standards.

In this webinar we discuss:

• Typical fault lists and exclusions
• Diagnostic Coverage (DC) and its importance in the safety control system
• Fault monitoring and detection
• Safety monitoring relay logic and examples

In this session, we will specifically be looking at Presence Sensing devices; their application, special functions and specific guidelines and rules for how they should be used, and delve into some of the specifics on how some of these devices work.

In this session, we will specifically be looking at Interlock Switches; their application, special functions and specific guidelines and rules for how they should be used, with respect to the machine safety standards.

IE3 / IE4 motors (high efficiency motors) have very different characteristics to older designs we are used to. The characteristics pose challenges for connected switch gear, circuit breakers and contactors alike. They have also forced industry to change expectations in performance parameters to do particular jobs. In this webinar, we discuss some of the issues involved in these subjects.

While there is a lot of information floating around on the subject of Arc Flash, it is safe to say there is a lot of confusion within industry concerning the responsibilities and obligations to mitigate against this occurrence. This technical webinar aims to break down the Arc Flash subject and clarify the obligations onsite and the various mitigation strategies available.

This webinar covers:

• What is arc flash (principles)
• What are sites required to do?
• Mitigation strategies
• AS/NZS 61439: Low-voltage switchgear and control gear assemblies
• Electrical Protection
• Arc Fault Detection Device (AFDD)
• Other Detection Methods
• Arc Quenching
• Personal Protective Equipment (PPE)
• Remote operation

This webinar covers:

• Meaning of selectivity and expected outcomes
• The basics of circuit breaker selectivity
• Defines types of faults and expected fault behaviours
• Discusses Prospective fault current s and how they are derived
• Defines the requirements and definitions according to AS/NZS3000:2018 and AS/NZS60947-2:2015

This webinar covers:

• Why is Type 2 co-ordination required?
• The testing processes from AS/NZS IEC 60947.4.1:2015
• How these are applied to type 2 tables for IE3 Premium efficiency motors
• Considerations for site operations

This webinar covers:

• Electric vehicles - range, recharging, cost, and why we're expecting them to slowly take over from petrol cars.
• Recharging behaviour - where drivers recharge them, how long it takes, and how much power is needed.
• Electrical supply to the vehicle and types of chargers - single phase, three phase, and DC.
• Installation requirements - RCDs and AS/NZS3000:2018.
• Load management - what will EVs do to the grid (or the site switchboard)?
• Existing public infrastructure - plugshare.com
• Where to next - NHP resources to help you out when your customer asks for an EV charger!

This webinar is the first in a two-part series on machine Safety Essentials. In this session, we will discuss the fundamental concepts of machinery safety:

• What are risks and hazards and how do we avoid them?
• What are safety devices and what makes them safe in the first place?

We will look at some of the terminologies used in the several machine safety standards and explore safety categories, performance levels and safety design.

This session follows on from Part 1, taking a closer look into some of the products you would typically find in a machine safety control system, particularly those which we at NHP can offer.