Model meaning

Overview

This series of voltage transformers are epoxy resin cast insulation and fully enclosed structures. They are suitable for measuring the voltage and electrical energy and relay protection in circuits and equipment with a rated frequency of 50Hz or 60Hz and a rated voltage of 50Hz.

The biggest feature of this model transformer is that only the fuse protection is added at a time, so the safety of the transformer is improved. If installed in the switch cabinet, there is no need to add another fuse, which saves a lot of space, and the cost of the switch cabinet can be reduced. Moreover, the fuse replacement is very convenient and can be directly installed into the transformer. The fuse current of the fuse is matched with the short-circuit current of the transformer, which effectively protects the transformer from failure when it fails.

Structure Introduction

This series of voltage transformers are fully insulated and fully enclosed. The iron core is made of high-quality cold-rolled silicon steel sheet, and the whole body is casted by epoxy resin. B appears once, and each outlet is equipped with a fuse. The fuse is easy to replace, as long as the front nut is unscrewed, the fuse tube can be taken out and put in. The secondary outlet is marked a, and there are mounting holes for installation.

Technical Parameters

Product standard: GB20840.3-2013

Pollution level: Ⅱ

Load power factor: COS = 0.8 (lag)

Equipped with fuse type XRNP □ -12 0.5A (special requirements please ask when ordering)

See the following table for other technical parameters

Dimensional drawing

Wiring schematic