DC insulation tester
Product Products
Dc insulation tester
Product Name:

Dc insulation tester

Listing Date: 2016-03-08

1. Combination of real-time monitoring and branch checking to ensure the instantaneity.

2. High precision: bus-ground voltage is less than 0.2%, bus-branch resistance is less than 5% (less than 50K)

3. Large checking range: Max checking resistance is 100K

4. Fast responding time: 5s for bus, 60s for branch

5. RS485 serial port and upper computer. Upper computer communication protocol can be customized to make it easy for the monitoring connection by other factories.

6. Monitoring drop status of positive & negative bus isolation, etc.

7. Low-frequency AC signal cancelled and branch checking not influenced by bus-ground capacity.

8. Innovative leak current sensor with smart isolation and solution with vulnerable circuit change with power-on has effectively solved the problem that DC sensor with power on cannot be changed

9. EMS conforms to IEC61000-6-2 (disturbance rejection standard of industrial environment)

10. Conforming to ROHS standard (Lead-free standard)

11. Wide working temp. range: -20~65 ℃


 

  • Product Overview
  • Detailed parameters
  • Product Specifications

In the photovoltaic inverter system, high voltage direct current (dc) of positive and negative bus are floating ground. Many due to the dc input and output circuit system, it is inevitable there will be a insulation damage, etc., when the fault occurs, the single point insulation falling because there is no short circuit loop formation, does not affect the normal work of electrical equipment, while still can continue to run; But if not handled in time, once appear, two points earth fault, may cause short circuit, dc power supply output fuse blowing, the switch burned, inverter may malfunction, the serious influence to the safe operation of other equipment in engine room; At the same time, the insulation down to site operation maintenance personnel's personal safety threat. In addition, dc lose contained in the input and output circuit very much, for the convenience of operations, will also be necessary to effectively monitor and find out the insulation by the specific branch. As a result, photovoltaic inverter of high-voltage direct current power supply system, to provide reliable and efficient insulation monitoring scheme to the normal operation of the monitoring system.

 

1. Combination of real-time monitoring and branch checking to ensure the instantaneity.

2. High precision: bus-ground voltage is less than 0.2%, bus-branch resistance is less than 5% (less than 50K)

3. Large checking range: Max checking resistance is 100K

4. Fast responding time: 5s for bus, 60s for branch

5. RS485 serial port and upper computer. Upper computer communication protocol can be customized to make it easy for the monitoring connection by other factories.

6. Monitoring drop status of positive & negative bus isolation, etc.

7. Low-frequency AC signal cancelled and branch checking not influenced by bus-ground capacity.

8. Innovative leak current sensor with smart isolation and solution with vulnerable circuit change with power-on has effectively solved the problem that DC sensor with power on cannot be changed

9. EMS conforms to IEC61000-6-2 (disturbance rejection standard of industrial environment)

10. Conforming to ROHS standard (Lead-free standard)

11. Wide working temp. range: -20~65 ℃


 

 

 

1. Combination of real-time monitoring and branch checking to ensure the instantaneity.

2. High precision: bus-ground voltage is less than 0.2%, bus-branch resistance is less than 5% (less than 50K)

3. Large checking range: Max checking resistance is 100K

4. Fast responding time: 5s for bus, 60s for branch

5. RS485 serial port and upper computer. Upper computer communication protocol can be customized to make it easy for the monitoring connection by other factories.

6. Monitoring drop status of positive & negative bus isolation, etc.

7. Low-frequency AC signal cancelled and branch checking not influenced by bus-ground capacity.

8. Innovative leak current sensor with smart isolation and solution with vulnerable circuit change with power-on has effectively solved the problem that DC sensor with power on cannot be changed

9. EMS conforms to IEC61000-6-2 (disturbance rejection standard of industrial environment)

10. Conforming to ROHS standard (Lead-free standard)

11. Wide working temp. range: -20~65 ℃


 

Shenzhen JinTing Solar Technology Co., Ltd
Address: 6F, Area B, University Pioneer Park, Nanshan District, Shenzhen, China.
Tel: 0755-26981333
Fax: 0755-26982688
Zip Code:330520
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