RFD-200 S3 PORTABLE RELAY TEST SET USER’S MANUAL Vanguard Instruments Company, Inc. 1520 S. Hellman Ave.
RFD-200 S3 USER’S MANUAL REV 1 SAFETY SUMMARY FOLLOW EXACT OPERATING PROCEDURES Any deviation from the procedures described in this User’s Manual may create one or more safety hazards, may damage the RFD-200 S3, or cause errors in the test results. Vanguard Instruments Company, Inc. assumes no liability for unsafe or improper use of the RFD-200 S3.
REV 1 RFD-200 S3 USER’S MANUAL TABLE OF CONTENTS CONVENTIONS USED IN THIS DOCUMENT ..................................................................................... 1 1.0 INTRODUCTION .................................................................................................................... 2 1.1 General Description and Features ................................................................................... 2 1.2 RFD-200 S3 Technical Specifications.........................................
RFD-200 S3 USER’S MANUAL REV 1 CONVENTIONS USED IN THIS DOCUMENT This document uses the following conventions: • A key, switch, input, or knob on the RFD-200 S3 is indicated as [KEY], [SWITCH], [INPUT], [KNOB]. • RFD-200 S3 LCD screen output is shown as: 0mS 0.0CY V Mtr: -0.003 V Int I: 0.080 A Ext I: -0.
REV 1 RFD-200 S3 USER’S MANUAL 1.0 INTRODUCTION 1.1 General Description and Features The RFD-200 S3 is a portable relay test set that delivers performance verification testing of electromechanical, electronic, and microprocessor-based protective relays in their operating installations. The RFD-200 S3 is a rugged test set suitable for testing a variety of protection relays operated in both indoor and outdoor environments.
RFD-200 S3 USER’S MANUAL REV 1 Ampere Meters The test current is displayed on the unit’s backlit LCD screen that is viewable in both bright sunlight and low-light levels. The current measuring range is from 0.00 to 250 A. A second ampere meter is also available and can be used to read an external current input. The external current input is rated at 6 A max and is protected by a circuit-breaker.
REV 1 1.2 RFD-200 S3 USER’S MANUAL RFD-200 S3 Technical Specifications Table 1. RFD-200 S3 Technical Specifications TYPE Portable relay test set INPUT POWER 100 – 120 Vac or 200 – 240 Vac (factory pre-set), 50/60 Hz PHYSICAL SPECIFICATIONS Dimensions: 16.8”W x 12.6”H x 12”D (42.7 cm x 32.0 cm x 30.5 cm); Weight: 35 lbs (15.
RFD-200 S3 USER’S MANUAL REV 1 Table 2. RFD-200 S3 Output Specifications AC CURRENT OUTPUT Range No-Load Voltage Load Voltage Load Current Load/Unload Times 10A 90 Vac 75 Vac 10 A 2 min / 15 min 40 A 25 Vac 20 Vac 40 A 1 min / 15 min 100 A 10 Vac 7.
REV 1 1.3 RFD-200 S3 USER’S MANUAL Controls and Indicators The RFD-200 S3’s controls and indicators are shown in Figure 1. The purpose of the controls and indicators may seem obvious, but users should become familiar with them before using the RFD-200 S3. Accidental misuse of the controls will usually cause no serious harm. Users should also be familiar with the safety summary found on the front page of this User’s Manual. Figure 1.
RFD-200 S3 USER’S MANUAL 2.0 FUNCTIONAL DESCRIPTION 2.1 RFD-200 S3 Auxiliary Power Supply REV 1 The RFD-200 S3 provides 3 auxiliary power supplies (24 Vdc, 48 Vdc, and 125 Vdc) for powering electronic relays. Each power supply is fuse-protected. The power supply outputs are controlled by the auxiliary power supply [ON/OFF] button. The LED next to the [ON/OFF] button is illuminated when the power supply output is turned on. Only one auxiliary power supply can be selected at a time.
REV 1 2.3 RFD-200 S3 USER’S MANUAL Control Switches 2.3.1. Voltage and Current Source Output Controls The RFD-200 S3’s voltage and current source outputs are controlled by the [UP ARROW] and [DOWN ARROW] buttons. There are four control settings for the voltage/current sources: • START-ON When this mode is selected, the RFD-200 S3 turns on the voltage/current sources and starts the timer. • OFF When this mode is selected, the voltage/current sources are turned off and the timer is stopped.
RFD-200 S3 USER’S MANUAL 2.4 REV 1 Timer Start and Timer Stop Inputs The RFD-200 S3’s built-in timer displays the test results in both milliseconds and cycles. There are three selections for the [TIMER START] input: • INTERNAL Timer starts when voltage/current sources are turned on or off (user selects Start-On mode or Start-Off mode). • DRY A change in state of a dry contact input after the user has selected the Start-On mode or Start-Off mode will start the timer.
REV 1 2.6 RFD-200 S3 USER’S MANUAL RFD-200 S3 External Voltage Input One external voltage input is available on the RFD-200 S3. Maximum input voltage is 600V. The external voltage is labeled as “V Mtr:” on the LCD screen as shown below: 0mS 0.0CY V Mtr: -0.003 V Int I: 0.080 A TMR: Single Input 2.7 External Voltage RFD-200 S3 External Current Input The RFD-200 S3 features one external current input. The maximum input current is 6A.
RFD-200 S3 USER’S MANUAL 3.0 OPERATING PROCEDURES 3.1 Setting the Voltage or Current Source REV 1 Use the steps below to set the voltage or current source: a. Ensure that the RFD-200 S3 output is off. When the unit is first turned on, the output will be off by default. b. Connect the device under test (DUT) to an RFD-200 S3 voltage or current output. If the RFD-200 S3 voltage source is used, the voltage can be monitored using the RFD-200 S3’s [EXTERNAL VOLTAGE INPUT].
REV 1 3.2 RFD-200 S3 USER’S MANUAL Setting the RFD-200 S3 for a Time Delay Test Use the steps below to measure an over-current relay time delay: a. Connect the RFD-200 S3 current source output across the relay coil as shown in Figure 2. b. Select INTERNAL for the [TIMER START] input by pressing the [LEFT ARROW] key in the TIMER START section until the [INTERNAL] LED light is illuminated. When the RFD-200 S3 is first turned on, this mode will be selected by default. c.
RFD-200 S3 USER’S MANUAL REV 1 g. Select START-ON from the control mode area. The RFD-200 S3’s timer will start when it energizes the coil voltage, and it will stop when the relay dry contact changes state. The elapsed time and test current will be displayed during the test in seconds and cycles on the LCD screen: 15.7000S 1057CY V Mtr: -0.003 V Int I: 2.080 A TMR: Dual Input h.
REV 1 RFD-200 S3 USER’S MANUAL Figure 2.
RFD-200 S3 USER’S MANUAL 3.3 REV 1 Using the RFD-200 S3’s Timer to Test Circuit Breaker Response Time Use the steps below to use the RFD-200 S3’s timer to measure the opening time of a circuit breaker. The timer will start when the RFD-200 S3 detects the voltage being applied to the circuit breaker trip coil. The timer will stop when the RFD-200 S3 detects that the circuit breaker contact has opened. a. Connect the [TIMER START] input to the circuit breaker coil terminals as shown in Figure 3. b.
REV 1 RFD-200 S3 USER’S MANUAL Figure 3.
RFD-200 S3 USER’S MANUAL 3.4 REV 1 Using the RFD-200 S3’s Timer in Single Input Mode The RFD-200 S3’s timer can also be started and stopped with only the [TIMER START] input. This feature is handy for measuring the time duration of the [TIMER START] input when it changes states and then returns to the previous state as shown below: This features works only with the DRY or WET mode of the [TIMER START] input. To select the single input mode, press and hold the [TIMER STOP ARROW] key for 2 seconds.
REV 1 RFD-200 S3 USER’S MANUAL g. Press and hold the [TIMER STOP ARROW] key for 2 seconds to return the RFD-200 S3’s timer to dual input mode.
RFD-200 S3 USER’S MANUAL 3.5 REV 1 Using the RFD-200 S3 to Plot a Current Transformer Excitation Curve Use the steps below to find the excitation curves of a current transformer (CT): a. Connect the RFD-200 S3 AC voltage source to the CT secondary winding in series with the external current input as shown in Figure 4. b. Connect the RFD-200 S3 AC voltage source to the RFD-200 S3 external voltage meter as shown in Figure 4. c. Select ON from the control mode area. d. Slowly raise the AC test voltage.
REV 1 RFD-200 S3 USER’S MANUAL Figure 4.
RFD-200 S3 USER’S MANUAL 3.6 REV 1 Using the RFD-200 S3 to Measure CT Primary and Secondary Currents Use the steps below to measure the CT primary and secondary currents with the RFD-200 S3: a. Connect the RFD-200 S3 current source through the CT primary current path as shown in Figure 5. b. Connect the CT secondary winding to the RFD-200 S3 [EXT INPUT CURRENT] input as shown in Figure 5. c. Turn on internal and external current display on the RFD-200 S3 by pressing the [METER SELECT] key.
REV 1 RFD-200 S3 USER’S MANUAL h. Select OFF from the control mode area.
RFD-200 S3 USER’S MANUAL REV 1 Figure 5.
1520 S. Hellman Ave • Ontario, CA 91761 • USA Phone: 909-923-9390 • Fax: 909-923-9391 www.vanguard-instruments.com Copyright © 2012 by Vanguard Instruments Company, Inc.
