Directional/Non Directional Overcurrent Protection Relay Module - ERP-SDND

State: Out of stock

ERP-SDND. Directional/Non Directional Overcurrent Protection Relay Module, for use with the Protection Relays Test Unit (ERP-UB), to enable investigations into protection and monitoring of generator and transformer
schemes, overhead lines, underground cables and backup on high-voltage systems.

Warranty: No warranty infomation

Price: Contact us

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Delivery time: 8h00 - 18h00 daily
Genuine product, provided width CO, CQ
03 months of free warranty for consumable and accessories
12 months of free warranty for main equipment
Accessorie's price is applied only when purchased with
main equipment
Contact us for any particular accessory's quotion

Email: info@redstarvietnam.com Every day in week

Features
Specifications
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Practical possibilities:

1.- Verification of Directional Protectionfunctionality.
2.- Directional Protection with different measurement circuit conditions.
3.- Directional Protection application to Transmission Line under different load conditions.
4.- Forward Directional Protection.
5.- Reverse Directional Protection.
6.- Non-Directional Overcurrent Protection.
7.- Residual Ground Time-OvercurrentProtection.

8.- Residual Ground Instantaneous Overcurrent Protection.
9.- Verification of Cable Undervoltage Protection.
10.- Verification of Cable Overvoltage Protection.
11.- Verification of Current TransformersMeasurements accuracy.
12.- Verification of Voltage TransformersMeasurements accuracy.
13.-Distribution System Directional Protection.

The main functions: The ERP-SDND Unit includes numerous phase, negative-sequence, residual-ground, and neutral overcurrent elements, as shown in the next table:

Overcurrent Element Operating Quantity	Number of Elements	Directional Contro	Torque Control	Definite-Time Delay
Maximum phase current (IA, IB, or IC)	1 inverse-time (51P) 6 instantaneous (50P1-50P6)	Yes Yes, on first 4	Yes Yes, on first 4	NA Yes, on first 4
Maximum phase-phase current (IAB, IBC, or ICA)	4 instantaneous (50PP1-50PP4)	No	No	No
Independent phase current	3 inverse-time (51A, 51B, 51C)	Yes	Yes	NA
Residual-ground current (3I0)	2 inverse-time (51G1,51G2) 6 instantaneous (50G1-50G6)	Yes Yes, on first 4	Yes Yes, on first 4	NA Yes, on first 4
Negative-sequence current (3I2)	1 inverse-time (51Q) 6 instantaneous (50Q1-50Q6)	Yes Yes, on first 4	Yes Yes, on first 4	NA Yes, on first 4
Neutral current (IN)	1 inverse-time (51N) 6 instantaneous (50N1-50N6)	Yes Yes, on first 4	Yes Yes, on first 4	NA Yes, on first 4

Inverse-time overcurrent element settings include a wide and continuous pickup current range, continuous time-dial setting range, and timecurrent curve choices from both US (IEEE) and IEC standard curves.

Undervoltage Protection Element (27).
Phase Overvoltage Protection Element (59P).
Ground Overvoltage Protection Element (59G).
Negative Sequence Overvoltage Protection (59Q).
Creating fault and disturbance records.
Selectable blocking.
Selogic Control Equations.
Event Report.
Sequential Events Recorder (SER).
Breaker Wear Monitor.
Station Battery Monitor.
DNP3 Serial LAN/WAN Outstation (Slave).
Modbus RTU and TPC.
High-Accuracy Metering.
Remote and Local Control Switches.
Wye or Delta Voltage Connection.
Synchrophasor Measurements.
Fault Locator.
Fast SER Protocol.
Directional/Definite-Time Overcurrents Elements.
Two Residual-Ground Time-Overcurrents Elements.
Six Frequency Elements.
Sensitive Earth Fault Protection and Directional Protection for Various
System Grounding Practices.
Load-Encroachment Logic.
Synchronism Check.
ACSELERATOR QuickSet Compatible.

The connection to the experimental circuit is via current transformers with ratio to suit the inputs of the relay.
It allows 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.
Dimensions(approx.): 490 x 330 x 310 mm. Weight: 10 Kg.

Catalogue_&_datasheet_EN

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