IEC 60255-187-1 Ed. 1.0 b:2021

Current Revision

Measuring relays and protection equipment - Part 187-1: Functional requirements for differential protection - Restrained and unrestrained differential protection of motors, generators and transformers

Best Price Guarantee Jul 1, 2021 EN/FR 418 Pages

PDF Available after processing $599.83 Print Copy Ships in 2-5 Days Quantity: 1 $599.83 Bundle Save 10% Ships in 2-5 Days $1,079.69

Modifications (Amendments, Corrigenda, Errata, etc.)

	Version	PDF	Print	Bundle
	Corrigendum 1 Stand-Alone	$0.00	$0.00	$0.00

Sub Total (1 Item(s)) $ 0.00

Estimated Shipping $ 0.00

Total (Pre-Tax) $ 0.00

IEC 60255-187-1 Ed. 1.0 b:2021

Name: IEC 60255-187-1 Ed. 1.0 b:2021 – Measuring relays and protection equipment - Part 187-1: Functional requirements for differential protection - Restrained and unrestrained differential protection of motors, generators and transformers
Brand: International Electrotechnical Commission
SKU: IEC 60255-187-1 Ed. 1.0 b:2021
Price: 599.83 USD
Availability: InStock

Measuring relays and protection equipment - Part 187-1: Functional requirements for differential protection - Restrained and unrestrained differential protection of motors, generators and transformers

PUBLISH DATE 2021

PAGES 418

Measuring relays and protection equipment - Part 187-1: Functional requirements for differential protection - Restrained and unrestrained differential protection of motors, generators and transformers.

IEC 60255-187-1:2021 specifies the minimum requirements for functional and performance evaluation of (longitudinal) differential protection designed for the detection of faults in ac motors, generators and transformers.

This document also defines how to document and publish performance test results.

This document defines the influencing factors that affect the accuracy under steady state conditions and performance characteristics during dynamic conditions.

The test methodologies for verifying performance characteristics and accuracy are also included in this document.

This document, together with IEC 60255-187-2 and IEC 60255-187-3, cancels and replaces IEC 60255-13.

This document includes the following significant technical changes with respect to IEC 60255-13:

IEC 60255-13 has been significantly revised to follow the common structure of the functional standards for protection relays (IEC 60255-1xx series).
IEC 60255-187-1 has been developed to address the restrained and unrestrained differential protection of motors, generators and transformers.
The revisions include detailed description of the functions including the performance specification, testing and documentation requirements.