1、 Product Introduction:
MJBC-HIIsingle-phaseThe relay protection tester is a new generation verification device successfully developed by our company. The AC/DC voltage and current sources inside the instrument adopt the latest power technology, which enables the instrument to achieve a reasonable layout in circuit design, device selection, panel layout, and internal structure design. This instrument has the advantages of complete functions, excellent material selection, clear test project data, and simple operation, and is the preferred equipment for power relay protection departments.
2、 Product features:
1Measuring relays: can measure the starting value, return value, and return coefficient of current and voltage relays.
2Time relay: It can measure the starting value, return value, and action time.
3Intermediate relay: It can measure the starting value, return value, holding value, and action time of various intermediate relays with starting and holding coils.
4Recloser relay: capable of conducting capacitor charging tests, charging time, reclosing time, and testing of intermediate components.
5Differential relay: capable of conducting DC excitation test, braking characteristic test, and volt ampere characteristic test.
6Various other uncommon relays.
3、 Product Technical Parameters:
1Working conditions:
(1) Working power supply: AC220V+10% 50Hz
(2) Working environment: Temperature: -10 ℃ to 40 ℃
Humidity: ≤ 85%
(3) Atmospheric pressure: 86-106Kpa
2Output power supply:
(1) AC voltage: 0-220V/3A
(2) AC current: 0-100A/7.5V
0~20A/25V
0~5A/5V
(3) DC voltage: 0-220V/3A
(4) DC current: 0-20A/25V
(5) Fixed value output: DC24V, DC48V, DC110V, DC220V
3Performance indicators:
(1) Current and Voltage Meters: 41/2bit
(2) Digital millisecond table: 0-99.9999 seconds





