Understand Voltage With PZM

Voltage on your electrical system is constantly changing. Voltage is a key component of power quality. Understanding, identifying and maintaining the acceptable service voltage is paramount to a utility's success and customer satisfaction.

PZM Low and High Voltage
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High-quality power is the goal of every well-run electrical utility. We understand voltage is a key component of power quality!

The PZM inspection program provides the utility with valuable insight as to how the voltage is doing throughout their system.
Explore PZM's Voltage Insights!

Voltage reads have been performed and tracked by PZM powered electrical utilities.

Read the case studies

With just a click, the PZM software displays voltage reports, helping to identify and rank the high and low voltage areas in your system.

With PZM, every field inspector's entry triggers a calculation of high and low alarm points. Any deviation in inspection data—flagged by PZM's proprietary analysis—instantly alerts users to potential issues within their electrical system. This invaluable information notifies electrical operations managers when they are delivering out of compliance voltage levels. Loads on a utility system are constantly changing, as a result voltage on a system is constantly changing. Using PZM ensures your system is continually delivers quality power.

PZM enables electric utilities to efficiently manage field personnel and ensure the seamless operation of expensive electrical equipment, providing reliable electricity to members.

Users can effortlessly access each equipment's inspection history and pinpoint any abnormalities, particularly in Voltage Regulators. PZM's advanced charts and graphs offer a comprehensive view of anomalies, helping users assess annual operations and identify trends.

This critical data assists operations departments in allocating maintenance and capital budgets effectively, maximizing their utilization for optimal results. PZM alerts management to trends and allows for proactive upgrades and repairs, rather than expensive, reactionary budgeting.

High and low voltage alarms precisely highlight abnormal drag hand levels and their occurrence throughout the year. These alarm data points are customizable and this data-driven approach empowers operations and engineering managers to make informed decisions for future actions, whether adapting to winter peaks, managing load growth, or aligning voltage regulators along a feeder.

If your current electrical utility inspection software lacks this level of instant, actionable information, connect with PZM today. Trusted by utilities across the United States and Canada, PZM offers cutting-edge insights and industry developments.

Schedule your personalized PZM demo now and take your electrical operations to unprecedented heights with PZM's innovative solutions!

Voltage must be regulated to stay within an acceptable range.

Under normal operations, the ANSI C84.1 standard for acceptable service voltage is from 95% to 105% of the nominal. For short durations or abnormal conditions, the voltage range is 91.67% to 105.83% of nominal.

As part of a standard inspection using PZM, voltage regulator high and low drag hands are documented and reset.

PZM uses these drag hand reads to provide valuable voltage information throughout your distribution system. PZM helps users review their voltage history to determine if the high or low voltage was an event or a trend.

It is a labor intensive process to gather voltage analytics using paper inspections and dual data entry. Using paper and forms, voltage regulator data is rarely analyzed, and if does get analyzed, it is next to impossible to do so in a timely manner. A lack of history makes it very difficult to recognize and make timely decisions regarding voltage correction measures. PZM does all the analysis for you…instantly!

PZM Voltage

Providing electrical utilities with valuable voltage insight.

Range A minimum voltage is 95% of nominal voltage
Range A maximum voltage is 105% of nominal voltage
Range B minimum voltage is 91.7% of nominal voltage
Range B maximum voltage is 105.8% of nominal voltage

ANSI C84.1

ANSI C84.1 specifies the steady-state voltage tolerances for an electrical power system. The standard divides voltages into two ranges. Range A is the optimal voltage range. Range B is acceptable, but not optimal.

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