Differential Protection Relay Module - ERP-PDF

State: Out of stock

ERP-PDF. Differential Protection Relay Module, for use with Protection Relays
Test Unit (ERP-UB), to enable investigations into protection of transformers,
autotransformers, generators, Bus Bar and other apparatus with two windings.
It demonstrates the characteristics of three-phase differential protection.
Modern and robust enclosure (steel box) with carrying handles.
The connections are via safety sockets.

Warranty: No warranty infomation

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03 months of free warranty for consumable and accessories
12 months of free warranty for main equipment
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Practical possibilities:

1.- Verification of Differential Protectionfunctionality.
2.- Transformer Differential Protection with variable TAP’s voltage regulation.
3.- Transformer Differential Protection with different transformer connection diagrams.
4.- Verification of Phase Instantaneous Overcurrent Protection for Winding 1.
5.- Verification of Phase Definite TimeOvercurrent Protection for Winding 1.
6.- Verification of Phase Inverse TimeOvercurrent Protection for Winding 1.

7.- Verification of Phase Instantaneous Overcurrent Protection for Winding 2.
8.- Verification of Phase Definite TimeOvercurrent Protection for Winding 2.
9.- Verification of Phase Inverse TimeOvercurrent Protection for Winding 2.
10.- Verification of Current Transformers Measurement accuracy.
11.- Power Transformer Overcurrent Protection.
12.-Distribution Substation Bus-Bar Differential Protection.
13.-Transmission Substation Bus-Bar Differential Protection.
14.-Analysis of Event Reports and Human Machine Interface.

The main functions:

Eight Overcurrent Elements for Winding 1	Instantaneous	Definite Time	Inverse Time
Phase	50P1H	50P1	51P1
Negative Sequence		50Q1	51Q1
Residual	50N1H	50N1	51N1
Eight Overcurrent Elements for Winding 2	Instantaneous	Definite Time	Inverse Time
Phase	50P2H	50P2	51P2
Negative Sequence		50Q2	51P2
Residual	50N2H	50N2	51N2
Setting Ranges, 5 A Model, (A secondary)	OFF, (0.5-80)	OFF, (0.5-80)	OFF, (0.5-16)

Selogic Control Equations. Event Reports.
ASCII. Bynari, and Distributed Port Switch Communications.
Phase, Ground, Negative-Sequence, Differential and Harmonic
Metering.
Restrained and Unrestrained Differential Elements.
Second- and Fourth Harmonic Restraint.
Fifth-Harmonic and DC Blocking.
CT and Transformer Connection Compensation.

Connection to the primary and secondary windings of the experimental is circuit via current transformers with ratio to suit the inputs of the relay. This provides an effective demonstration of the effect of current and voltage transformer ratio, connection and rating on protective relays.

Cables and Accessories, for normal operation.
Manuals: This unit is supplied with 8 manuals.
490 x 330 x 310 mm Dimensions(approx.): . Weight: 10 Kg.

Catalogue_&_datasheet_EN