MCJB-933 Relay Protection Tester

Model: MCJB-933 Quantity: 1 set Manufacturer: Hubei MECI Electric Power Equipment Co., Ltd

Category: Relay Protection Tester

Keywords: MCJB-933 Relay Protection Tester

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Product Overview

Product Features

  • The main features of the microcomputer-based relay protection tester are as follows:
  • Equipped with the user-friendly Windows XP operating system, the human-machine interface is intuitive and easy to use, enabling quick and efficient operation. To further enhance user convenience, a wide range of keyboard shortcuts have been defined, allowing users to perform tasks with a single keystroke.
  • High-performance embedded industrial control computers paired with large, high-resolution color TFT LCD displays provide rich, intuitive information, including the equipment’s current operating status, prompts for the next step, and various help messages.
  • Equipped with an ultra-thin industrial keyboard and a touch-enabled mouse, it allows users to perform various operations via the keyboard or mouse just as they would on a standard PC.
  • Equipped with an external USB interface, it enables convenient data access and software maintenance.
  • All test items can be completed without the need for any external equipment; test data are automatically displayed and recorded, and vector diagrams and characteristic curves are generated.
  • A high-performance D/A converter is employed, delivering waveforms with high accuracy and excellent linearity, as well as superior transient response and amplitude-frequency characteristics. Waveform accuracy and other performance metrics are consistently maintained across the entire measurement range.
  • It can directly output AC voltage, AC current, DC voltage, and DC current, with adjustable amplitude, phase angle, and frequency.
  • The power amplification stage employs a new high-power, high-fidelity linear amplifier circuit, delivering high output power with minimal ripple and interference. Even at maximum output current, the waveform remains distortion-free and free of clipping.
  • The digital input interface can automatically accommodate both passive (dry contact) and active inputs, and can also automatically adapt to the polarity of active inputs. It operates reliably within an input voltage range of ±250 V.
  • It is equipped with a 110 V/220 V auxiliary DC power supply, which can be used to power protection devices at the test site.
  • It can perform a wide range of complex verification tasks, conveniently test and scan various protection settings, store test data in real time, display vector diagrams, print reports, and more.
  • It features a meticulously engineered chassis design that is compact, offers excellent heat dissipation, is lightweight, easy to carry, and facilitates convenient flow testing.
  • The instrument features self-protection capabilities, a well-designed thermal management system, and a comprehensive suite of reliable protection measures. It supports output waveform monitoring and incorporates built-in fault self-diagnosis and interlock functions.

Technical Specifications

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AC current source

  1. Current Source with a Common Neutral Point for Three Phases ， Current rise and fall time < 100 microseconds
  2. Maximum output power: 450 VA per phase
  3. Output accuracy:
  4. Resolution:
  5. Single-phase continuous output time:

0.1A ~ 0.5 A Accuracy

±5 mA

0.5 A ~ 10 A Accuracy

plus or minus 0.1%

10 A ~ 40A accuracy

plus or minus 0.2%

0.1A ~ 10 A Resolving power

1mA

10 A ~ 40A resolution

5mA

0.1 A ~ 10 A Output time

No time limit

10 A ~ 20 A Output time

≥90 seconds

20 A ~ 30 A Output time

≥20 seconds

30 A ~ 40 A Output time

≥15 seconds

 

1.2.2 AC voltage source

  1. Voltage source with a common neutral point for four phases ， Current rise and fall time < 100 microseconds
  1. Maximum output power: ≥75 VA/Phase
  1. Output accuracy:
  2. Resolution:

1 Accuracy of V～5V

±5 mV

Accuracy from 5V to 125V

plus or minus 0.1%

1 V–5V resolution

1mV

5V to 125V resolution

5 millivolt

 

1.2.3 DC current source

  1. Single-phase output range ： -10A～ + 10 A or 0–20 A
  2. Maximum output power: 300 VA per phase
  3. Output accuracy:
  4. Resolution: 5m A

Accuracy of ±0.1 A to ±2 A

±10 mA

Accuracy of ±2 A to ±10 A

plus or minus 0.2%

 

1.2.4 DC voltage source

  1. DC Voltage Output Range ： -150V to +15 0V or 0–300 V
  2. Maximum output power: greater than or equal to 100VA
  3. Output accuracy:
  4. Resolution:

Accuracy from ±1 V to ±5 V

±10 mV

Accuracy from ±5 V to ±150 V

plus or minus 0.2%

Resolution of ±1 V to ±5 V

5mV

Resolution: ±5 V to ±150 V

10 millivolt

 

1.2.5 Delivery Flow voltage and current source angle

  1. Phase angle range: 0 °～ 360°
  2. Accuracy: plus or minus 0. 1st
  3. Resolution: 0. 01°

 

1.2.6 Delivery Flow voltage, current source frequency

  1. Frequency range: 1 to 20 00Hz
  2. Can be stacked 2 ~ 20 harmonic components of arbitrary amplitude and DC component
  3. Output accuracy:
  4. Resolution: 0.001 Hz

1Hz ~ 65Hz

±0.001 Hz

65Hz ~ 2000 Hertz

±0.02 Hz

 

1.2.7 Timing Accuracy

1 ms to 1 s

±1 ms

1S ~ 999999S

plus or minus 0.2%

 

1.2.8 Input Quantity

  1. 16 independent switch contact inputs with automatic polarity detection for powered contacts.
  2. Compatible with dry contacts and 15V ~ 250V Powered contact

 

1.2.9 Number of Issuances

  1. 8 pairs of programmable switch dry-contact outputs
  2. Contact capacity ：250VDC，0.5A  or 250VAC，0.5A

 

1.2.10 Synchronization

Voltage-current synchronicity less than or equal to 10 mu S

 

1.2.11 Power Supply

  1. AC Input Voltage

Rated value: 220V ± 10%

Baseline value: 220V ± 2%

  1. AC power supply frequency:

Rated value: 50 Hz ± 10%

Baseline value: 50 Hz ± 2%

1.2.12 Operating Environment Conditions

  1. Ambient temperature: – 10℃ to +40℃
  2. Relative humidity: ≤90%
  3. Atmosphere Pressure: 80–110 kPa

 

1.2.13 Enclosure Dimensions and Weight

  1. Box dimensions (Long (Width × Height × Depth): 420 mm × 215 mm × 470 mm
  2. Weight: 22 kilograms
MCJB-933 Relay Protection Tester

MCJB-933 Relay Protection Tester

Model: MCJB-933 Quantity: 1 set Manufacturer: Hubei MECI Electric Power Equipment Co., Ltd

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Tel： 86-13307164232

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