PDF
GB/T 20840.4-2015 Active
GB/T 20840.4-2015 Instrument transformers—Part 4:Additional requirements for combined transformers
Abstract
This part of GB 20840 is applicable to newly manufactured combination transformers used in electrical measuring instruments and electrical protection devices, with a frequency of 15 Hz to 100 Hz. The requirements and tests of this part, as well as the requirements and tests of current transformers and electromagnetic voltage transformers included in GB 20840.1, GB 20840.2, and GB 20840.3, are all necessary for combination transformers.
General Product Information
| Document Type | National standards |
|---|---|
| Standard Status | Active |
| Standard Code | GB/T 20840.4-2015 |
| CCS | Transformer |
| ICS | Transformers, reactors, and inductors |
| Implement Date | 2016-06-01 |
Price
$ 75
Subtotal
$ 75
Tax
$ 0.00
Order Total (incl. tax)
$ 75