Liaoning Chaoyang insulation monitoring module manufacturer supplies

Oil drilling rig electrical control system ground detection application 2
Positive drilling rig electrical control system application is aimed at the fault ground detection system, which is used to detect AC ground faults. A ground fault test button is required (mainly used to determine whether the indicator light is burned out when the ground fault indicator light is on). A grounding indication is also required. For this purpose, we designed and selected the second-generation insulation monitor model launched by Dongguan Qianbo Electronic Technology Co., Ltd. Equipped with insulation resistance meter, indicator light and detection button. The insulation detector module and insulation resistance meter selected in the design are connected as shown in Figures 1, 2 and 3. The schematic diagram of the scheme is shown in Figure 4.
Positivebr/ Picture 1 shows the insulation testing instrument
Positivebr/ Picture 2 shows the insulation resistance meter
Positivebr/ Picture 3 shows the wiring method
Positivebr/ Picture 4 shows Schematic diagram of the insulation detector
In the front picture, the insulation detector is connected to the AC power supply. The insulation detector monitors the public DC bus voltage. A fuse is added to the front end of the insulation detector to protect the insulation detector from damage, as shown in Figure 2. The insulation resistance meter shown is a ground fault indicator light and a ground monitoring test button. The and terminals are grounded and the signal output can be monitored on the host computer. Always pay attention to the system grounding status. Connect the power according to the diagram and enter the debugging mode. The
type insulation monitor is developed by our company for the characteristics of large distributed capacitance, high grid voltage, complex grid and other characteristics of mining, metallurgy and other power grids. Compared with the early insulation monitor, it has added an independent alarm point, achieving an independent insulation Resistance setting value and alarm output, including remote test reset function and analog output function, completely replace the advanced European and American imported models, and can be used in AC and DC power grids.
Positive technical parameters
Control power supply
Input voltage ~ () or ~ (choose one of the two)
Approximate power consumption
Test network
Power grid Voltage~or~
Set alarm value alarm~alarm~
Internal AC resistance value〉
Internal DC resistance value〉
Internal test voltage +/
Test current ( )
Allowed noise DC voltage
Distributed capacitance
Running time line ground capacitance under line ground capacitance
Measurement accuracy %
Output
Contact group independent The normally open contact corresponds to the group alarm signal
switching capacity, or
energizing capacity, or
analog output~corresponding~ (can be customized according to customer needs)
operating data
Operation mode: continuous operation
Operating temperature range.+℃
Pollution level

Burst immunity/
Control of surge voltage between power lines/
Control the surge voltage between the power line and the ground/
Conducted disturbance immunity
Power frequency magnetic field immunity
Radiated emission limit value level
Degree of protection
Cover/
Terminals/
Technical data
Wiring, high-voltage wires,
Wires
Other terminals. Above wires
Install rails or use Long screw installation (recommended)
Weight is about
Insulation monitor, in many occasions in ungrounded systems, it is necessary to monitor the insulation resistance value of the power grid to the ground. When the insulation resistance value of the power grid to the ground drops to a certain level, it is required Intervention measures should be taken to alarm. The insulation monitor is designed in response to this demand. The insulation monitor has experienced generations of development. The current insulation monitor can be applied to any occasion in China. The product has strong versatility and is simple and convenient to install. It is an alternative to similar imported products. Domestic model of insulation monitor.
Positive