AVO New Zealand

What's in the name...?

For over 100 years, Megger has been a premier provider of test equipment and measuring instruments for electrical power applications. The Megger trademark was first registered in May 1903 and is closely guarded by the company. Although Megger is best known for its world-famous range of insulation testers, the company provides a full service solution to meet all electrical test and measurement needs. Megger products provide testing solutions for the most critical maintenance areas, including cable fault location, protective relay and circuit breaker testing, and power quality testing. With such a diverse product offering, Megger is the single source for electrical test and measuring instruments. The Megger product offering spans 30 distinct product groups with over 1,000 specific products.
Circuit breaker test sets, watt-hour meter test equipment and protective relay test instruments, instruments used for testing and maintaining transformers, batteries and underground cables and other products designed for the power industry were formerly supplied under the Biddle, Multi-Amp, PAX Diagnostics and Programma brands. Among other innovations, Megger developed the first completely automatic, software driven protective relay test system in 1984 and the first commercial cable fault locator in 1950.

Manufacturing insulation testers from 1kV to 10kV is where Megger started, and the Megger brand name is so well known today that maintenance professionals often incorrectly use it as a verb when they refer to insulation testing on wiring. This famous name dates back to 1889, when the first portable insulation tester was introduced with the MEGGER brand.
Recently, Megger acquired PAX diagnostics, adding sweep frequency diagnostic test equipment to its portfolio. Megger enjoys an outstanding reputation in the areas of ground testing, oil testing and as a supplier of electrical contractor maintenance tools such as multimeters, portable appliance testers and clamp-on meters.

The most recent addition to the Megger product line is an innovative range of instruments for testing data and telecommunication installations. Working with both copper and optical technologies, and collaborating closely with the major industry players, Megger has developed easy-to-use products to keep the costs of test and measurement down and productivity up.

Megger also operates the renowned AVO Training Institute, which offers top rated training for electrical maintenance and safety through the network of Megger offices. In addition, the company manufactures STATES® terminal blocks and test switches, which are specified by many major electric utilities. For over 65 years, test technicians and engineers have depended on STATES products to provide easy access to wiring on panel boards and switchboards, to eliminate wiring reconnection errors and to save operator time.

Megger manufactures and markets products on a global scale. Its principal manufacturing sites are in College Station and Dallas, Texas; Valley Forge, Pennsylvania, Dover, England and Täby, Sweden. Sales and technical support offices are maintained at each manufacturing site as well as in Sydney, Australia; Toronto, Canada; Paris, France; Oberursel, Germany; Mumbai, India, Johannesburg, South Africa; Oberkulm, Switzerland, Chonburi, Thailand and Bahrain, UAE. With a global network of hundreds of sales representatives, product literature and user manuals in eight languages, and multilingual product software, Megger is a local supplier for customers anywhere in the world.

All Megger products meet the highest standards for quality, reliability and safety. All of the company's facilities are certified as meeting the requirements of the ISO 9001 quality standard, and the Dover and Täby sites are also certified to ISO14001, the international environmental standard. Megger is constantly striving to maximize quality, thereby ensuring that the experience of its customers is always world class.

Who should read this document?

This document is intended for engineers and technicians in the power, industrial and utility sectors who wish to learn how to test substation circuit breakers.

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