Microgrid supporting product series

ZDAI-RLC DC impedance simulation cabinet

ZDAI-RLC DC impedance simulation cabinet






The ZDAI-RLC series microgrid cable DC impedance simulation is composed of multiple impedance devices that simulate DC cables of different lengths. It can accurately simulate the cable impedance parameters. The cable length and specifications are customized according to user requirements and correspond to the impedance of the microgrid access cable. , Inductive reactance and capacitive reactance value, the simulation of the cable length of the connected public low-voltage power supply system, the step is 50 meters (steps can be customized), to meet the needs of distributed power experiment testing, and it is necessary for the development and verification of relay protection programs. Prepared test equipment.




◆ DC line simulation consists of multiple sections of impedance equipment that simulate DC cables of different lengths, and the simulated length is provided by the user; for example, the cable is 10mm2, and the voltage resistance is a single core of 1000VDC.

Cable, 4 sections (2.5Km, 5Km, 7.5Km and 10Km) analog cable impedance can be freely combined to realize the simulation of cable lines of different lengths

◆ DC line simulation equipment should be bipolar structure, which can directly realize the simulation of bipolar DC line

◆ Simulate impedance coefficient of DC cable: resistance 0.0754Ω/km, inductance 0.282mH/KW, capacitance 0.292μF/KW, impedance error is not more than 5%; line impedance simulation adopts centralized parameter simulation

◆Line simulation provides a single-pole-to-ground short-circuit fault simulation loop cable interface

◆ The fault simulation resistance meets the short-circuit current passing capacity of more than 10 seconds, does not emit red, and automatically protects against overheating

◆ The short-circuit fault time can be set in the software, and the time is adjustable from 0.1 to 10 seconds

◆ Equipped with a PLC automatic control system, the host panel has a switch for adjusting impedance and fault access, which can be adjusted arbitrarily according to the needs of the experiment

◆ Configure local control panel to realize analog line length and fault adjustment function

◆ The analog resistance of the line is a high-precision component, which will not change the impedance value due to temperature rise during long-term operation

◆ The device can work normally under the following environmental conditions

◆ Ambient temperature: -20 ℃~+50 ℃

◆ Relative humidity: 10%~90%, non-condensing

◆ Atmospheric pressure: 80 kPa~110 kPa

◆ Noise: ≤65dB, measured at 1m

◆ Altitude: Altitude≤2000m

◆ Durable time: 20 years, (average temperature 25℃, components can be replaced during use)

◆ Seismic resistance; horizontal acceleration 0.2g, vertical acceleration 0.1g, tested according to IEC 61166, safety factor 1.67

◆ The allowable ambient temperature of the device during transportation is -35℃~+85℃, and the relative humidity is not more than 85%

◆ The allowable ambient temperature during storage is -35℃~+85℃, the relative humidity is not more than 85%, and the device will not change irreversibly without applying any excitation.

ZDAI-RLC series DC analog impedance

Model number


Power supply

AC 220V/ 50Hz ± 10%

Device power consumption

< 2kW

DC voltage range

0 ~ 800 Vdc

Rated current


Simulated cable length

2.5Km, 5Km, 7.5Km, 10Km (customized according to user requirements)

Impedance length factor

Resistance 0.0754/km

Impedance error


Resistance and inductance thermal drift

≤±2 PPM

Fault simulation method

Unipolar grounding of positive and negative poles, fault between positive and negative poles

Fault simulation resistance

2Ω, 5Ω, 10Ω

Peak fault current

150 A

Failure duration

0.1 ~ 10s

control method

Local control

Communication protocol



Analog impedance can be customized according to user requirements


If the above specifications do not meet your needs, you can customize it according to your requirements Tel: 0574-65113511