PC57.12.35/D4, Apr 2013 is a technical standard focused on voltage regulators used in power, energy, and related industrial applications. It addresses the design and performance considerations that help ensure stable voltage control in electrical equipment and systems. For engineers, specifiers, and procurement teams, this standard matters because it supports consistent requirements, more reliable equipment selection, and clearer expectations for regulator behavior in practical installations.

Overview of PC57.12.35/D4, Apr 2013

This standard provides a defined framework for voltage regulators, helping align technical requirements with the needs of power-system equipment and connected devices. PC57.12.35/D4, Apr 2013 is relevant where regulated output, equipment coordination, and dependable operation are important to system performance. In a components-and-systems context, it can support more consistent design review, testing, and comparison of voltage regulator products or assemblies against a recognized specification.

Typical use cases

PC57.12.35/D4, Apr 2013 is typically relevant for voltage regulation in electrical power systems, utility-oriented equipment, and industrial installations where controlled voltage is needed for dependable operation. It may be used when evaluating regulators for distribution equipment, control systems, or other power-related assemblies that must maintain stable electrical conditions. The standard is also useful in engineering workflows that involve product specification, compliance review, and technical procurement for regulator-based solutions.

Why it matters

Having a clear reference for voltage regulators helps reduce ambiguity in design and acceptance decisions. PC57.12.35/D4, Apr 2013 can support more consistent compliance checking, easier comparison of products, and better coordination between engineering and purchasing teams. For systems that depend on stable voltage behavior, using a defined technical standard may lower the risk of mismatch, performance issues, or inconsistent testing outcomes. That makes it a practical reference for controlled, reliable equipment selection.

• Voltage regulator requirements
• Power and energy applications
• Component and system coordination
• Design and testing reference
• Inactive standard record