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  • Woodward ESDR4 Current Differential Protection Relay ESDR405-h0018B
    Woodward ESDR4 Current Differential Protection Relay ESDR405-h0018B
    Woodward ESDR4 Current Differential Protection Relay ESDR405-h0018B
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  • Woodward ESDR4 Current Differential Protection Relay ESDR405-h0018B

    Woodward ESDR4 Current Differential Protection Relay ESDR405-h0018B

    • U.S.$2899.00
      U.S.$859999.00
      U.S.$2754.05
      U.S.$2696.07
    • Satisfaction:

      Sales: 0

      Review: 0

    Weight:2.890KG
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    • (Inventory: 3)
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Description

Woodward ESDR4 Current Differential Protection Relay ESDR405-h0018B


Woodward ESDR4 Current Differential Protection Relay ESDR405-h0018B

The ESDR 4 is a three-phase current differential protection relay for generators and motors (protected object). The currents flowing in the individual lines are each measured using a current transformer on both sides of the protected object. They form the protection area boundary or zone. All two or three-phase short circuits and line to-earth faults within this protection area are detected by the ESDR 4 as fault currents which initiate tripping.The unit does not trip if fault currents occur outside the protection zone. In this way, a selective protection is guaran teed.

Examples: 

 ESDR 401B (Standard unit, ../1 A CT input, for front panel mounting) 

 ESDR 405B (Standard unit, ../5 A CT input, for front panel mounting)

All electronic equipment is static-sensitive, some components more than others. To protect these components from static damage, you must take special precautions to minimize or eliminate electrostatic discharges. Follow these precautions when working with or near the control. 

 Before performing maintenance on the electronic control, discharge the static electricity on your body to ground by touching and holding a grounded metal object (pipes, cabinets, equipment, etc.). Avoid the build-up of static electricity on your body by not wearing clothing made of synthetic materials. Wear cotton or cotton-blend materials as much as possible because these do not store static electric char ges as much as synthetics. Keep plastic, vinyl, and Styrofoam materials (such as plastic or Styrofoam cups, cup holders, cigarette packages, cellophane wrappers, vinyl books or folders, plastic bottles, and plastic ash trays) away from the control, the modules, and the work area as much as possible. Opening the control cover may void the unit warranty. Do not remove the Printed Circuit Board (PCB) from the control cabinet unless absolutely necessary. If you must remove the PCB from the control cabinet, follow these precautions: 

 • Ensure that the device is completely de-energized (all connectors must be disconnected). 

 • Do not touch any part of the PCB except the edges. 

 • Do not touch the electrical conductors, connectors, or components with conductive devices with your hands. 

 • When replacing a PCB, keep the new PCB in the protective antistatic bag it comes in until you are ready to install it. Immediately after removing the old PCB from the control cabinet, place it in the protective antistatic bag.

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Delivery:


               All orders are available with UPS, FedEX, USPS,EMS ,TNT and DHL;
               International shipping available with overnight, next day air or expedited shipping
               Ships in stock within 48 hours.

Warranty: 

                All our products are covered by our own warranty.

                ✓ 18 months warranty - New parts
                ✓ 6 Months - 12 Months Warranty - Open box Parts
Advanced services: Additional agreement, can provide technical services!

Payment method:


Quick Quote: Receive price and availability today!

Returns: Strict screening will be carried out when leaving the warehouse, and the products have quality problems.
               We have a professional after-sales service team, no hassle return policy.
Partial products (formative): Confirm your requirements or version, select a product.
Maintenance service: The cost and delivery time can be provided according to the actual situation of the product.

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Product user manual, where specific data inventory?
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Solutions for malfunctions of products that have stopped in the production cycle
Can the products be used if their rated voltages are different?
What should I do if the input power limit is insufficient?
How to deal with the problem of the display screen flickering or garbled characters?
Does the product need to set an IP network address?
What functions do products with serial 232 ports have?
Does adding an expansion rack require the replacement of new modules?
Can products whose production cycle has been stopped be ordered again?
How can we achieve an upgrade and replacement when changing to a new series of products?
After replacing the new module, it still cannot be started directly. What are the solutions?
Can single-channel products be replaced by multi-channel products?
How to upgrade the firmware? Where can I download the firmware?
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