NF Power Test Instruments Rx4717W RX4718W REX4723W REX4741W REX4731 2721 RX4763
 
 

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RX4717W Single-phase Voltage, Single-phase Current Protective Relay Tester

Outputs 100VA single-phase voltage and 180VA single-phase current

Equipped with counter function, output selector, auto sweep function, memory function, DC output for testing, master/slave function, etc.

Output frequencies of 50Hz, 60Hz, and 10Hz to 200Hz; using external synchronization or line synchronization (selectable)

Equipped with GPIB/RS-232C interfaces

Weight: 19.5kg

RX4718W Three-phase Voltage Protective Relay Tester

Outputs 100VA three-phase voltage

Equipped with counter function, output selector, auto sweep function, memory function, DC output for testing, master/slave function, etc.

Auto setting of 1LG, 2LS, three-phase batch, three-phase balanced and phase switching functions

Output frequencies of 50Hz, 60Hz and 10Hz to 200Hz; using external synchronization of line synchronization (selectable)

Equipped with GPIB/RS-232C interfaces

Weight: 19.5kg

REX4723W Three-phase Current Protective Relay Tester

Output capacity modes include three-phase current (180VA per phase), two-phase current (360VA for first phase, 180VA for second phase), and single-phase current (540VA)

Can be easily combined with RX4718 for local testing

Equipped with counter function, output selector, auto sweep function, memory function, DC output for testing, master/slave function, etc.

Equipped with GPIB/RS-232C interfaces

Output frequencies of 50Hz, 60Hz and 10Hz to 200Hz; using external synchronization of line synchronization (selectable)

REX4741W Protective Relay Test Controller

External controller for NF¡¦s protective relay testers

Main unit included control functions for local tests, output selector, time counter, dummy circuit breaker, and response input selector.

Easily configurable with computer-based local and stand-alone relay test systems

Equipped with GPIB interface

Weight: 17kg

Current Output Amplifier REX4731

Current booster increasing capacity for supporting mechanical relay test (Max. 450VA output)

2721 Power Multimeter

A Power Multi-meter can measure various parameters, such as AC voltage, current, frequency effective power and power factor.
Three phases + zero phase (option)

Voltage and current measurement accuracy: ¡Ó(0.05% of rdg + 0.005% of range)

6 display windows

RX4763 3-phase Voltage Current Standard

For calibration of various meters , CT, PT, and power transducers
Output : Three-phase voltage, three-phase current, DC

Frequency: 1.000Hz to 5000.000Hz, setting resolution 1mHz

Frequency accuracy: ¡Ó30ppm

Waveform: Sine, harmonics, arbitrary, dc
Output mode: Balanced, unbalanced,
three-phase three-wire, single-phase three-wire