ABB TPU 70.53 - User Manual

—
MEDIUM VOLTAGE PRODUCTS
Current and Voltage
Instrument Transformers
Instruction for Installation, use and
maintenance

Summary

Service conditions

Technical details

Instructions for installation

General informations

General information regarding installation procedures.

Safety instructions

Essential safety precautions for transformer installation.

Mounting

Procedures and guidelines for mounting transformers.

Primary connection

Instructions for connecting the primary circuit.

Secondary connections

Instructions for connecting the secondary circuit.

Capacitive voltage indicator (divider)

Details on the capacitive voltage indicator function.

Fuses

Information on fuses for voltage transformers.

External fuse holder

Installation and use of external fuse holders.

Routine test report

Information regarding routine test reports.

Instructions for use

Instructions for maintenance

Transport and storage

Disposal

Handling with the transformers

Normative references

Appendix 1. Examples of secondary terminal marking

ABB TPU 70.53 Specifications

General

Rated voltage	0.72 kV
Rated secondary current	5 A or 1 A
Frequency	50-60 Hz
Rated dynamic current	2.5 kA
Accuracy class	0.5