Сборка неразъемных трансформаторов WB-CT309

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WB-CT309 transformer assembly and WB-MAP meter adapter

Purpose

The assembly is intended for use in conjunction with WB-MAP meters as a replacement for split transformers. The use of one-piece transformers is often more convenient and reliable when assembling the shield from scratch.

Смотрите также статью RS-485:Физическое_подключение.

Specifications

Transformer current measurement error

Parameter	Value
Rated current	5 A
Maximum current	125 A
Hole diameter (max. cable diameter)	9.5 mm
Transformation ratio	1:2000
Phase angle, 1/1000 of a degree	120
Dimensions (L x W x H)	74 x 30 x 36 mm
Масса (с коробкой)	70 g

Datasheet for used transformers: Файл:ZMCT123.pdf

Mounting

An example of mounting two assemblies

Step between transformers - 1 DIN module (17.5 mm). It is convenient to install the assembly immediately under the machines. They can also be joined two at a time by turning the right assembly over and crimping the second end of the cable in a different order - this way the step between the transformers will be preserved.! N! It can be attached to the shield panel using self-tapping screws to plastic racks. You can also simply fix it on the cable with ties (put it on the cable itself to limit the stroke).

An adapter with an RJ-12 socket is inserted into the WB-MAP meter instead of a mating terminal block and connected to the transformers with a connecting cable (included). The cable is made of a twisted pair and two 6P6C (RJ-12) plugs crimped in a straight pattern: white-orange, orange, white-green, green, white-blue, blue (see diagram 1).

If you install two transformer assemblies side by side and turn the second one over, then one of the ends of the cable must be crimped according to a different scheme: orange, white-orange, green, white-green, blue, white-blue (see diagram 2).

It is not recommended to work without connection to the WB-MAP meter.

Selection of crimping scheme depending on the orientation of the transformer assembly
Scheme 1. Crimping a twisted pair for connecting a transformer assembly. Serial version
Scheme 2. Crimping a twisted pair for connecting an inverted transformer assembly