Kdjb-903D Three Phase Microcomputer Relay Protection Tester System/Comprehensive Secondary Current Injection Relay Test Unit

• Customization: Available
• After-sales Service: Yes
• Warranty: 1 Year
• Model NO.: KDJB-903D
• Frequency Range: 0-1000Hz, Accuracy 0.01Hz
• Phase: 0-360 °, Accuracy 0.1 °
• Harmonic Frequency: 2-20 Times
• Line Voltage Output (Effective Value): 0-240V
• Time Range: 1ms -9999s
• Line Voltage Output Amplitude: 0- ± 320V
• Customized Support: OEM, ODM, Obm, Software Reengineering
• Contact: 0-250V DC
• Switching Input Terminals: 8 Pairs
• DC Current Output: 0- ± 5A/Phase, Accuracy: 0.2% ± 5mA
• Power: Electronic
• Phase Voltage/Line Voltage Output Power: 40va/60va
• Trademark: KDZD
• Origin: Hubei, China
• HS Code: 9030332000
• Production Capacity: 5000

Product Description

 

 

Technical parameter

 

AC power source

Single phase current output (effective value): 0-10A/phase, accuracy: 0.1% ± 5mA

Three phase parallel output (effective value): 0-30A/Three phase same phase parallel output

Long term allowable working value (effective value) of phase current: 5A

Maximum output power per phase: 100VA

Maximum output power of three-phase parallel current: 300VA

Maximum allowable working time for triple current output: 5s

Frequency range: 0-1000Hz, accuracy 0.01Hz

Harmonic frequency: 2-20 times

Phase: 0-360 °, accuracy 0.1 °

 

DC current source

DC current output: 0- ± 5A/phase, accuracy: 0.2% ± 5mA

 

AC voltage source

Single phase voltage output (effective value): 0-120V/phase, accuracy: 0.1% ± 5mV

Line voltage output (effective value): 0-240V

Phase voltage/line voltage output power: 40VA/60VA

Frequency range: 0-1000Hz, accuracy: 0.01Hz

Harmonic frequency: 2-20 times

Phase: 0-360 °, accuracy: 0.1 °

 

DC voltage source

Single phase voltage output amplitude: 0- ± 160V, accuracy: 0.2% ± 5mV

Line voltage output amplitude: 0- ± 320V

Phase voltage/line voltage output power: 40VA/60VA

 

Switching terminal

Switching input terminals: 8 pairs

Empty contact: 1-20mA, 24V internal active output of the device

Potential flipping: passive contact: low resistance short circuit signal; Active contact: 0-250V DC

Switching output terminals: 4 pairs, air contact, breaking capacity: 110V/2A, 220V/1A

 

Other

Time range: 1ms -9999s, measurement accuracy: 1ms

Single unit volume weight: Volume 315 x 225 x 155 mm3, approximately 8.5Kg

Adapter power supply: charger 24V/2A
 

Working time of AC current
10A ≥ working current: working time>6 hours

Main features

 

1. Meet the requirements of on-site testing. This instrument has standard four phase voltage and three-phase current output, which can be used to test various traditional relays and protection devices, as well as modern microcomputer protection. Especially for transformer differential protection and backup automatic switching devices, the testing is more convenient.

 

2. Meet the national standard GB/T 7261-2016 "Basic Test Methods for Relay Protection and Safety Automatic Devices" and the standard DL/T 624-2010 "Technical Conditions for Microcomputer-based Test Devices for Relay Protection".

 

3. Windows XP operating interface, user-friendly human-machine interface, easy and fast operation; The embedded industrial control computer and 10.4-inch LED true color display screen with a resolution of 800 × 600 can provide rich and intuitive information, including the current working status of the device and various help information.

 

4. The local Windows XP system comes with a recovery function to avoid system crashes caused by illegal shutdowns or accidental operations.

 

5. Equipped with ultra-thin multifunctional quick connect buttons and an optical mouse, it can complete various operations through the keyboard or mouse like operating a regular PC.

 

6. The main control board adopts a DSP+FPGA structure, with 16 bit DAC output. It can generate high-density sine waves of 2000 points per week for the fundamental wave, greatly improving the quality of the waveform and enhancing the accuracy of the testing instrument.

 

7. The power amplifier adopts a high fidelity linear power amplifier, which ensures both the accuracy of small currents and the stability of large currents.

 

8. It uses a USB interface to communicate directly with the PC without the need for an adapter, making it convenient to use.

 

9. Can be connected to a laptop (optional) for operation. Laptops and industrial computers use the same set of software, without the need to relearn operating methods.

 

10. Equipped with GPS synchronization test function. The device can be equipped with a built-in GPS synchronization card (optional) that is connected to a PC through an RS232 port, enabling two testers to perform synchronous switching tests in different locations.

 

11. Equipped with an independent dedicated DC auxiliary voltage source output, with output voltages of 110V (1A) and 220V (0.6A) respectively. To be used for relays or protective devices that require DC working power supply.

 

12. It has software self calibration function, avoiding the need to open the chassis and adjust the potentiometer to calibrate accuracy, thereby improving the stability of accuracy.