Megger SMRT1B Handleiding

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SMRT1B

Single Phase Relay Test System

www.megger.com 1

DESCRIPTION

As a standalone unit the SMRT1B has the “smart” combination of

high compliance voltage and high current to test electromechanical,

solid-state, and microprocessor-based overcurrent relays. This includes

voltage controlled, voltage restraint and directional overcurrent, under/

over voltage, single-phase impedance, single-phase power, directional,

synchronising, auto-synchronising, negative sequence under/over

voltage, current balance, frequency, volts/hertz, reclosing, thermal,

and various other relays (see the Application Guide for more). The

SMRT1B can be controlled with the Integrated on-board display. The

on-board display with its large, full color, high resolution and Wide

Viewing Angle Technology bright LCD touch screen display allows the

user to perform manual, steady-state, and dynamic testing quickly and

easily using the manual test screen, as well as using built-in pre-set test

routines for most popular relays.

The onboard display eliminates the need for a computer when testing

almost any type of relay. Menu screens and touch screen function

buttons are provided to select the desired test function quickly and

easily. Tests results can be saved to the on-board display’s, internal

memory for later download to a USB Thumb drive to transfer or print

test reports. For fully automatic testing every SMRT unit is supplied

with Relay Test Management Software (RTMS) for installing on a PC.

It does not require a security dongle or license to operate and can be

loaded on as many customer-owned computers as required. There are

two different levels of RTMS: Standard and Enhanced (see ordering

information for details).

The SMRT1B can be powered from a standard AC voltage source, or

from the optional DC battery source. The input voltage rating is from

90 - 264 VAC, 50/60 Hertz. The maximum input power is 700VA. The

input is protected by a resettable circuit breaker. The battery source is

protected using fuses.

BATTERY

The SMRT1B can be powered using two DeWALT Flexvolt

®

20/60V

Lithium 9.0Ah, or equivalent, batteries, Dewalt part number DCB609.

Batteries, and battery charger, are not included with the SMRT1B and

must be purchased separately.

APPLICATIONS

The current channel is rated for 32 A at 200 VA continuous and up to

60 A at 319 VA for short durations. It has a unique flat power curve

from 4 to 32 A that always ensure maximum compliance voltage to

the load. With a high compliance voltage of 50 V, the SMRT1B has the

capability to test high impedance overcurrent relays.

The voltage channel can provide a variable output of 0 - 30/150/300 V

at 150 VA of output power and has a unique flat power curve from 30

to 150 V, always ensuring maximum output power to the load. With

the voltage channel converted to current, it can perform minimum

operating point, slope, and timing on current differential relays,

including harmonic restraint transformer differential relays (which can

be tested one phase at a time).

It is also designed to operate in conjunction with other SMRT family

units. Using the Ethernet ports, SMRT1B is literally a “plug-and-

play” unit, where voltage and current outputs can be seamlessly

synchronized with other SMRT unit’s voltage and current outputs for

testing more complex relays such as three-phase directional power,

distance, and loss of excitation, with up to 30 phase currents for

testing bus differential schemes.

■Small, rugged, lightweight, and powerful

■Operate with or without battery

■Intuitive manual operation with onboard

display

■High current, high power (75 A/400 VA

RMS)

■Fully automated testing using RTMS

■IEC 61850 GOOSE testing capability

■IEC 61850 9-2 LE Sampled Values compliant

Product specificaties