Wrindu

Microcomputer Protection Relay Tester

The RDJB Series microcomputer protection relay tester integrates advanced microelectronic technology, offering high performance, cost-effectiveness, and reliability.
Models: RDJB-802M,RDJB-1600M

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OVERVIEW

 

The RDJB Series microcomputer protection relay tester leveraging modern microelectronic technology, combines the superior performance and advanced functions of large-scale testers with the compactness, flexibility, easy operation, and high reliability of smaller counterparts. This high-performance, cost-effective instrument is an excellent choice for relay protection workers.

 

CHARACTERISTIC

 

  • Multi-Function Output

-Supports 6-phase voltage and current outputs for various testing methods, including differential and auto-reclosure testing.

 

  • Flexible Operation

-This microcomputer protection relay tester Built-in WINDOWS OS allows independent or computer-connected operation for stability and convenience.

 

  • High-Fidelity Power Amplifier

-Utilizes a high-fidelity modular linear power amplifier for smooth output waveforms and versatile current testing.

 

  • Compact and Efficient

-DSP control, real-time signal processing, and a lightweight design make it ideal for field and mobile testing.

 

  • Powerful Software Features

-Supports automated calibration, setting value testing, fault analysis, data storage, and report printing, especially for differential protection testing.

 

  • Independent DC Power Supply

-Includes adjustable DC power output (110V/220V) for enhanced testing flexibility.

 

  • Versatile Interfaces

-Equipped with a USB port for easy connections with computers and external devices.

 

  • Self-Protection

-Incorporates a heat dissipation design and robust hardware/software protection for safety and reliability.

 

FAQ

 

Q: What are the basic types of protective relay?

A: Protective relays come in three fundamental types:
1. Electromagnetic Relays: Utilizing armature, induction cup, or disc mechanisms.
2. Static Relays: Employing solid-state devices to process analog signals.
3. Digital/Numerical Relays: Leveraging programmable solid-state devices for digital signal processing.

 

Q: Why is relay testing important?

A: Relay testing is crucial to ensure the effective operation of relays in response to faults. Regular testing prevents electrical system risks, equipment damage, and harm to personnel. It verifies the reliability of relays, maintaining a well-protected system.

 

Q: How do relays detect faults?

A: Relays monitor small deviations in current, voltage, resistance, or temperature. When these signal a fault, the protective relay takes corrective action, such as tripping a circuit breaker, to prevent electrical system damage.

 

APPLICATION

 

Protective Relay Test Device Protection Relay Test Unit

Picture image001 image003
Model RDJB-802M RDJB-1600M
AC Source Phase current output (effective value): 0~30A The virtual value of each phase output when six phase current output: 0~30A
Output Precision: 0.2 degree Output precision: 0.2 grade
3-phase parallel current output (effective value): 0~90A The virtual value of each phase output when three-phase current output: 0~60A
The virtual value of six-phase parallel current output: 0~180A
A Long-time Phase current: 10A The allowed virtual value when the phase currently works a long time: 10A
The maximum output power of Phase current: 300VA The maximum output power of phase current: 300VA
Maximum output power of 3 parallel currents: 800VA The maximum output power when six phase parallel current output: 1000VA
Maximum Permitted work time of 3 parallel currents: 5s The allowed working time when six phases parallel current maximum output: 10s
Frequency range (fundamental): 0~1000Hz Frequency range (fundamental wave): 0~1000Hz
Harmonic time: 2~20 Harmonic order: 2~20
Phase: 0~360º Phase: 0~360º
DC Source The output amplitude of phase voltage: 0~±160V.

Output precision: 0.5 grade

Current output: 0~±10A / phase; Output precision: 0.5 grade

The maximum load voltage output: 20V

AC Voltage Source The virtual value of phase voltage output: 0~120V Output precision: 0.2 grade The virtual value of phase voltage output: 0~120V

Output precision: 0.2 grade

The virtual value of line voltage output: 0~240V The virtual value of line voltage output: 0~240V
The output power of phase voltage/ line voltage: 75VA / 100VA The output power of phase voltage/ line voltage: 80VA / 100VA
Frequency range (fundamental wave): 0~1000Hz Frequency range (fundamental wave): 0~1000Hz
Harmonic order: 2~20 Harmonic order: 2~20
Phase: 0~360º Phase: 0~360º
DC Voltage Source The output amplitude of phase voltage: is 0~±160V; output precision: is 0.5 grade The output amplitude of phase voltage: is 0~±160V; output precision: is 0.5 grade
The output amplitude of line voltage: 0~±320V The output amplitude of line voltage: 0~±320V
The output power of phase voltage/ line voltage: 90VA / 180VA The output power of phase voltage/ line voltage: 70VA / 140VA
Switching Terminal 8 channels input 8 channels input
Free contact: 1~20mA, 24V Free contact: 1~20mA, 24V
Electric potential contacts: “0”: 0 ~: +6V; “1”: +11V ~ +250V Electric potential contacts: “0”: 0 ~ +6V; “1”: +11V ~ +250V
4 channels output: DC: 220V/0.2A; AC: 220V/0.5A 4 channels output: DC: 220V/0.2A; AC: 220V/0.5A
Time Measurement Range 1ms~9999s, measurement accuracy: 1ms 0.1ms~9999s, measurement accuracy <0.1ms
Power AC220V ± 10%; 50Hz AC220V ± 10%; 50Hz

 

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