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Multifunctional Microcomputer Relay Protection Tester with 8 Digital Inputs, 4 Outputs and 3-Phase Voltage/Current Output

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Wuhan Mingyang Technology Co., Ltd

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Multifunctional Microcomputer Relay Protection Tester with 8 Digital Inputs, 4 Outputs and 3-Phase Voltage/Current Output

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Brand Name :	MINGYANG
Model Number :	MY-S701
Price :	3200usd
Payment Terms :	L/C,D/A,D/P,T/T,Western Union
Supply Ability :	1000pcs/month
Delivery Time :	1 week

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Multifunctional Microcomputer Relay Protection Tester with 8 Digital Inputs, 4 Outputs and 3-Phase Voltage/Current Output

3-Phase Protection Relay Tester with Secondary Current Injection

Professional 3-phase protection relay tester designed for secondary current injection testing with comprehensive 2-year warranty coverage.

AC Current Source Specifications

Parameter	Specification
Single Phase Current Output (RMS)	0–30A/phase, accuracy: 0.2% ± 5mA
Three Phase Parallel Output (RMS)	0–90A/three phase in-phase parallel output
Long-term Allowable Working Current	9.9A (effective value)
Maximum Output Power per Phase	300VA
Three Phase Parallel Current Power	800VA
Maximum Triple Parallel Current Duration	5 seconds
Frequency Range	0–1000Hz, accuracy: 0.001Hz
Harmonic Number	2–20th order
Phase Control	0–360°, accuracy: 0.1°

DC Current Source

DC current output: 0–±10A/phase, accuracy: 0.5% ± 5mA

AC Voltage Source Specifications

Parameter	Specification
Single Phase Voltage Output (RMS)	0–120V/phase, accuracy: 0.2% ± 5mV
Line Voltage Output (RMS)	0–240V
Phase/Line Voltage Output Power	75VA/100VA
Frequency Range	0–1000Hz, accuracy: 0.001Hz
Harmonic Number	2–20th order
Phase Control	0–360°, accuracy: 0.1°

DC Voltage Source

Parameter	Specification
Single Phase Voltage Output	0–±160V, accuracy: 0.5% ± 5mV
Line Voltage Output	0–320V
Phase/Line Voltage Output Power	90VA/180VA

Switching Value Terminals

Switch Input Terminals: 8 channels
Air Contact: 1–20mA, 24V, internal active output
Potential Reversal: Passive contact (low resistance short circuit signal) / Active contact (0–250V DC)
Switch Output Terminals: 4 pairs of empty contacts
Interruption Capacity: DC: 0–30V/5A, AC: 0–250V/5A

Additional Specifications

Time Frame: 1ms–9999s, measuring accuracy: 1ms
Dimensions: 335 * 168 * 270mm
Weight: Approximately 12.5kg
Power Supply: AC220V±10%, 50/60Hz, 10A

AC Current Working Time Specifications

Working Current	Maximum Duration
< 10A	≤ 60 minutes
10A–20A	≤ 70 seconds
20A–30A	≤ 15 seconds
30A	≤ 5 seconds

Switch Input and Output Configuration

The device features 8 pairs of switch input terminals and 4 pairs of switch output terminals. Both input and output systems utilize photoelectric isolators and 24V DC relays, powered by an independent 24V DC working power supply, providing 24V DC voltage between COM terminal and input.

Product Images

3-Phase Protection Relay Tester in use with clamp transformers

3-Phase Protection Relay Tester measurement setup configuration

Detailed view of 3-Phase Protection Relay Tester controls and connection interfaces

Product Tags:

Multifunctional Microcomputer Relay Protection Tester with 8 Digital Inputs, 4 Outputs and 3-Phase Voltage/Current Output

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