Delta T Alert™ is designed to warn users of excessive heat rise within their electrical enclosures prior to failure. The majority of electrical failures are the result of overloaded circuits and/or loose connections. Ideal applications include the following:
First and foremost, Fused Disconnect Switches are the number one ideal application for Delta T Alert™ - this is due to the fact that it is a mechanical switch and it has a minimum of 15 points of contact where failure can occur. According to IEEE - disconnects have the highest percentage rate of failure when preventive maintenance is not performed.
According to IEEE – Disconnects Switches have the highest rate of failure
The heartbeat of any facility is its Main Switchgear Room. Monitor and trend temperatures up to eight times per day during peak load conditions. Keep track of temperature increases within “locked out” CT cabinets.
The Heartbeat of your facility
Distribution & Power Panels
Delta T Alert™ can monitor and warn prior to failure of excessive heat from Incoming Feeders and Main Breakers. Incoming feeders are not protected. Failure of feeders and main breaker will result in the loss of power to the whole panel.
Incoming Lines & Main Breakers – Not Necessarily Individual Breakers
Dry Type Transformers
Neither non-ventilated nor ventilated dry-type transformers have indicating gauges, as are needed on liquid-filled transformers, to monitor temperature, pressure, and liquid level. Thus, routine checks are more subjective and consist mainly of visual and audible observations.
NEMA Standards publication ST 20 - Transformers have a maximum surface temperature rise depending where they are mounted and insulation class.
Delta T Alert™ can warn customers of increasing heat rise within these transformers on a daily basis.
Routine Maintenance is often overlooked due to the danger of T/F cover removal.
Variable Frequency Drives (VFD)
A VFD is basically a computer and power supply. Involved control circuitry, microprocessors, circulating fans and control boards are just a few of the components within a VFD. Successful operation depends on three main maintenance categories – keep it clean, keep it dry and keep connections tight. Loose connections, fan failure and excessive dirt and dust will increase the temperature within VFD’s which will cause premature and expensive repairs, not to mention downtime.
Loose connections, fan failure & excessive dust cause damaging heat rise within VFD’s cabinets
Meter pans which are found in many apartment buildings and are typically locked out by the utility company. Delta T Alert’s™ can be programmed to record readings during peak load conditions which would include early morning and evening hours.
Normally locked out by utility company