Testing, reliability & durability

The document presents general requirements that Telcordia and participating industry representatives view as applicable to large format non-aqueous rechargeable lithium batteries to replace or interoperate with conventional batteries (i.e., Lead-Acid, nickel-based); function seamlessly with DC power plants; and provide reliable backup power to load equipment in a network environment of a typical telecommunications service provider.

The document provides a 3-level system of VRLA String Safety and Performance Criteria based on Telcordia generic requirements documents. The VRLA string criteria levels are defined as follows: ? Level 1, Safety and Minimal Operability – minimum acceptable level of compliance needed to preclude hazards and degradation of the network facility and hazards to personnel, and needed to ensure battery operability at the installation time in controlled environments.

Safety standard for stationary batteries for energy storage applications, non-chemistry specific and includes electrochemical capacitor systems or hybrid electrochemical capacitor and battery systems. Includes requirements for unique technologies such as flow batteries and sodium beta (i.e., sodium sulfur and sodium nickel chloride). Includes construction requirements, tests and production tests. Also includes requirements for cells used in these systems such as lithium-ion, nickel, Lead-Acid and includes sodium beta and flow battery requirements.

1.1 These requirements cover inverters, converters, charge controllers, and interconnection system equipment (ISE) intended for use in stand-alone (not grid-connected) or utility-interactive (grid-connected) power systems. 1.2 For utility-interactive equipment, these requirements are intended to supplement and be used in conjunction with the Standard for Interconnecting Distributed Resources With Electric Power Systems, IEEE 1547, and the Standard for Conformance Test Procedures for Equipment Interconnecting Distributed Resources with Electric Power Systems, IEEE 1547.1.

IEC 61427-2:2015 relates to secondary batteries used in on-grid Electrical Energy Storage (EES) applications and provides the associated methods of test for the verification of their endurance, properties and electrical performance in such applications. The test methods are essentially battery chemistry neutral, i.e. applicable to all secondary battery types.

This Standard establishes voltage standards for AC Systems in Canada to provide a guide: (a) To national committees on utilization and control equipment or devices for establishing standard ratings of such equipment or devices on a basis coordinated with standard systems; (b) To system designers so that new systems will be designed to accommodate standard ratings of equipment and devices; (c) To system operators and to electrical energy users for determining the need for corrective measures, with respect to existing systems, to accommodate current designs of equipment and devices; and (d) T

1.1 These requirements cover the following types of transformers:

1. Air-cooled transformers and reactors for general use;
2. General purpose autotransformers;
3. Ferroresonant transformers;
4. Class 2 and Class 3 transformers (which are evaluated in accordance with Part 3);
5. Cord-connected transformers (which are evaluated in accordance with Part 2);
6. Transformers incorporating overcurrent or over-temperature protective devices, transient voltage surge protectors, or capacitors; and
7. Permanently-connected transformers.

1.2 These transformers are intended to be used in accordance with the National Electrical Code, ANSI/NFPA 70, or CSA C22.1, the Canadian Electrical Code, Part I. The Canadian Electrical Code defines low voltage as any voltage from 31 to 750 V inclusive and high voltage as any voltage above 750 V. The National Electrical Code, ANSI/NFPA 70, defines low voltage as any voltage up to 600 V, nominal. Therefore, low voltage transformers intended for use in Canada may be rated above 600 V up to 750 V. Low voltage transformers intended for use in the United States are rated up to 600 V. Where information in clauses and tables in this standard reference voltage ranges, the limit of 600 V applies in the United States, while the limit of 750 V applies in Canada.

1.3 The standard does not cover the following transformers:

1. Direct plug-in types;
2. Neon;
3. Liquid-immersed;
4. Variable voltage (Variac);
5. Low voltage landscape;
6. Swimming pool and spa:
7. Ignition;
8. High intensity lighting;
9. Toy;
10. Fluorescent lamp types;
11. Transformers for welders;
12. Distribution;
13. Transformers intended for use in the United States with a nominal primary rating of more than 600 V;
14. Transformers incorporating rectifying or waveshaping circuitry;
15. Transformers for use with radio- and television-type appliances;
16. Transformers intended for use in the United States having overvoltage taps rated over 660 V;
17. Autotransformers used in industrial control equipment, which are evaluated in accordance with the requirements of the Standard for Industrial Control Equipment, UL 508, or CSA C22.2 No. 14, Industrial Control Equipment; and
18. Other special types of transformers covered in requirements for other electrical devices or appliances.

1.4 Part 1, as well as Part 2 and Part 3, establish the characteristics, construction, operating conditions, markings, and test conditions for each type of transformer.

1.5 The requirements in this standard may be modified by requirements in an end product standard if a transformer is intended for use only as a component in other equipment.

This Standard provides a method of presenting technical information relating to the selection of storage batteries for photovoltaic systems and to the precision of that information.
Note: A distinguishing feature of photovoltaic (PV) power systems is the unpredictability and limitation on the amount of charging power available and hence on the charge-d ischarge cycles imposed on the storage battery.
1.2
This Standard includes procedures designed to verify the capacity, efficiency, and longevity of storage batteries.

This standard specifies the type, production, and commissioning tests that shall be performed to demonstrate that the interconnection functions and equipment of a distributed resource (DR) conform to IEEE Standard P1547; Interconnection equipment that connects distributed resources (DR) to an electric power system (EPS) must meet the requirements specified in IEEE Standard P1547. Standardized test procedures are necessary to establish and verify compliance with those requirements.

IEEE Std 1547.7™ is part of the IEEE 1547™ series of standards. Whereas IEEE Std 1547™-2003 provides mandatory requirements for the interconnection of distributed resources (DR) with electric power systems (EPS), this guide does not presume the interconnection is IEEE 1547™ compliant. Further, this guide does not interpret IEEE Std 1547™ or other standards in the IEEE 1547™ series, and this guide does not provide additional requirements or recommended practices related to the other IEEE 1547™ documents.