BENDER Isolated Power Panels

System functions:

• Indication of faulty branch circuits

• Modular design allows for simple retrofitting/upgrading

• Current transformers for fault detection available in many different shapes and sizes

• Up to 708 sub circuits can be monitored

• Communication via two-wire connection

• Universally applicable for most types of ungrounded systems

Function

The EDS series works in conjunction with the LIM2010 to create a complete ground fault location system. After an alarm is generated by the LIM2010, the EDS series system activates (this can happen automatically or be manually controlled). A test device generates a test signal for a set period of time. Its amplitude and duration are limited. The signal flows through the location of the ground fault. Current transformers placed around each subfeeder or load will pick up on this test signal. The EDS series device will then evaluate the results. The location of the fault is displayed on the EDS series via either a digital display or an LED bar graph. Special remote indicators connected to the system may also display the location of the fault.

Ground Fault Location Module

The EDS461 series of ground fault location modules, combined with the LIM2010, create an installed ground fault location system for ungrounded AC and DC systems. Once a ground fault is detected, the test pulse generated by the LIM2010 is scanned by the EDS461 to locate a ground fault down to the load level. Up to 12 separate current transformers may be connected to the device. A total of 90 EDS devices may be interconnected via RS-485. By utilizing the EDS series devices, the source of the fault in the isolated power system can be identified within seconds.

Module Types

Type: EDS461-D EDS461-L

Display Type:

LCD display

LED indication

Outputs:

1 DPDT contact

1 DPDT contact

Introduction

BENDER’s dual voltage isolated power panels provide two different output voltages simultaneously using one isolation transformer. The typical configuration is provided with one side configured for 208 V or 240 V fixed at 15 kVA and the second side configured for 120 V at 5, 7.5, or 10 kVA.

Ideally suited for:

• Locations where space is limited

• Installations requiring power for both typical hospital equipment and x-ray / laser receptacles

Standard Features: Dual Output Voltage Panel

Dual output voltage isolated power panels provide two separate voltage outputs using a single isolation transformer. A standard dual output voltage panel consists of the following:

• One (1) single-phase isolation transformer with dual secondary outputs (120 V side and 208 V or 240 V side)

• Two (2) BENDER LIM2010 Line Isolation Monitors (LIM)

• Two (2) Reference ground buses

• One (1) Primary circuit breaker

• One (1) Secondary main circuit breaker for 120 V side

• Eight (8) branch circuit breakers for 120 V side, field-convertable up to 16

• One (1) Secondary main circuit breaker for 208 V or 240 V side

• Provision for two (2) 2-pole branch circuit breakers for 208 V or 240 V side

Standard Features: Dual System Panel

Dual system panels provide two separate voltage outputs from two isolation transformers. This system is equivalent to two independent standard isolated power panels in one enclosure. A standard dual system panel consists of the following:

• Two (2) single-phase isolation transformers

• Two (2) BENDER LIM2010 Line Isolation Monitor (LIM)

• Two (2) Reference ground buses

• Two (2) Primary circuit breakers

• Branch circuit breakers (Qty. 8 standard, field-convertable up to 16 per system)

Features

• Power Distribution: Loadcenters available for either plug-in or bolt-on circuit breakers

• Mounting: Available for flush- or surfacemounted applications

• Advanced technology: The LIM2010 line isolation monitor features self-testing, self-calibration, and a wide variety of alarms including voltage, overload, and overtemperature monitoring

• Standards: Listed to UL 1047, the standard for isolated power system equipment

• Warranty: Industry-first 5 year warranty

Device Communication

BENDER‘s line of communication products allow for fast notification of personnel when a problem has occured. Critical systems monitored by BENDER equipment may be connected to a variety of remote indicators to notify personnel of the current status of the system. Communication gateways bring your electrical safety network into the 21st century by displaying system information via several standard protocols, such as Ethernet, MODBUS, and

PROFIBUS. The Ethernet gateway device additionally features an easy-to-use status page, accessible through a web browser. E-mail and SMS messaging when an alarm has occurred is also available. Utilizing this communication system allows for timely and cost- effective deployment of service personnel and can help avoid equipment damage or failure.

Communication possibilities with BENDER systems and devices

1 - LIM2010 Line Isolation Monitor

2 - MK2430 Remote Indicating Station

3 - BENDER communication bus

4 - COM460IP Ethernet / Modbus/TCP communication gateway

5 - FTC470XMB Modbus/RTU communication gateway

6 - FTC470XDP Profibus/DP communication gateway

7 - Ethernet network or Modbus/TCP network