LZCK-55 Outdoor Current Transformer

The LZCK-55 is a clamp outdoor split core current transformer for use with energy meters for measurement in power utilities and outdoor distribution transformer monitoring. The manufacturer's category page describes a semicircular ring core and secondary windings vacuum-poured in insulated resin, for measurement and microcomputer protection in 11kV and 35kV AC systems, with standards IEC 60044-1, IEC 61869-2, NTC 2205, GB 1208-2006 and ANSI/IEEE C57.13.

No protection rating is stated for this model on this page. The reference material behind this site gives different ratings in different places for this model, and the rating is unresolved. Ask for the rating that applies to this model to be confirmed in writing from the current datasheet before ordering, rather than relying on any single listing.

Item and specification

How to select

Choose the LZCK-55 when an outdoor split core CT with a 55mm core is needed for meter measurement or microcomputer protection. Check the conductor diameter against the 55mm core, the system voltage against 11kV and 35kV, and the accuracy class against the metering or protection use. If the conductor is larger, a larger window model from the same family is the right comparison.

Before payment, confirm the model, the core diameter, the system voltage, the accuracy class, the protection rating from the datasheet in writing, the quantity, and the delivery terms. No price, minimum order or lead time figure is stated here; confirm each in writing with your inquiry.

Records and comparisons

Keep a record for every test this instrument performs. A useful record states the instrument model, the device under test, the test settings, the results, the date, and the person who ran the test. Records of that form can be checked months later, when a result is questioned or a device is retested after repair. A record that only says pass or fail cannot be checked, and a test that cannot be checked will eventually have to be repeated.

When comparing this model with a neighbouring model from the same family, compare the same items for both: the test functions, the ranges, the accuracy class, the display and output features, and the standards referenced. A comparison that uses one model's headline figures against another model's detailed figures is not a comparison. Ask for the current datasheet for each model under consideration, and compare datasheet against datasheet.

If the instrument will be used by more than one person, agree who owns the test records and where they are kept before the first test. Shared instruments with private records produce results that cannot be checked by anyone except the person who ran the test, which defeats the purpose of keeping records at all.

What to confirm before ordering

Before payment, confirm the model, the specification from the current datasheet, the quantity, the price, the lead time, and the delivery terms, in writing. Ask in your inquiry to confirm the payment terms, the trade terms, and the reply time you should expect, rather than assuming any of them. No price, minimum order or lead time figure is stated on this site.

Notes

No warranty period is stated on this page, because the reference material does not give a company-site warranty figure for this model.