1, AC current source:
Amplitude range: 6×(0-30A)/phase accuracy: 0.2%
Six-phase current shunt output maximum: 180A
Phase current long-term allowable working value: 10A
Power: 300VA/phase six-phase parallel maximum power: 900VA
Six-phase parallel maximum output allowed working time: 10s
Frequency range: 0--1000Hz; Accuracy: 0.001Hz
Harmonic times: 2-20 times; Phase: 0--360°; Accuracy: 0.1°
2, DC current source:
Amplitude: 20A/phase; Power: 300VA/phase; Accuracy: 0.2%
3, AC voltage source:
Amplitude range: 6×(0--125V); Accuracy: 0.2%
Line voltage range: 0--250V
Phase Voltage/Line Voltage Output Power: 70VA/100VA
Frequency range: 0--1000Hz; Accuracy: 0.001Hz
Harmonic times: 2-20 times 4, DC voltage source:
Phase voltage output amplitude: 0--±150V; Accuracy: 0.2%
Line voltage output amplitude: 0--±300V;
Phase Voltage/Line Voltage Output Power: 90VA/180VA
5, switch terminal:
Digital input terminals: 8 pairs of empty contacts: 1--20mA, 110V device internal active potential flip:
0--6VDC is low level 15-250VDC is high level digital output terminal: 4 pairs, empty contact, breaking capacity: 110V/2A, 220V/1A.
6, time measurement range:
Range 1ms~9999s; measurement accuracy 1ms
7, volume weight:
Volume 470 (mm) × 405 (mm) × 185 (mm); about 20Kg
8, power:
AC220V±10%; 50Hz10A
Product introduction:
The six-phase relay protection calibrator is a high-intelligence, multi-function relay protection calibration instrument developed by our company on the original basis. The instrument adopts microcomputer technology and is composed of a single-chip microcomputer, a logic control unit, an AC-DC current and voltage output unit, a high-precision data acquisition unit, an LCD liquid crystal display, a real-time clock, a printer, etc. The measurement accuracy is high and the repeatability is good. The instrument also has the advantages of beautiful appearance, reliable performance, simple operation, complete functions, etc. It is an ideal testing instrument for verifying relay protection devices.
Six-phase relay protection calibrator can test a variety of AC and DC current, electricity, room, signal, reclosing, differential and other single relay and the entire group of relay protection screen, can test the various relays pull-in voltage (current Values, release voltage (current) value, pull-in time and disconnection time of various contacts (normally open, normally closed, changeover, delay) are automatically tested three times, the mean is calculated three times automatically, and test results can be printed .
Seamless carbon steel pipes are made of steel ingots or solid billets through perforation to make capillaries, which are then hot-rolled, cold-rolled or cold-drawn. The raw material of carbon Steel Pipe is a round tube blank, which is cut by a cutting machine into a billet with a length of about 1 meter, and sent to a furnace for heating through a conveyor belt. The billets are fed into the furnace and heated at about 1200 degrees Celsius. The fuel is hydrogen or acetylene. Furnace temperature control is a critical issue. After the round tube blank is released from the furnace, it is pierced through a pressure punching machine. Generally, the more common punching machine is the conical roller punching machine. This kind of punching machine has high production efficiency, good product quality, large amount of perforation and diameter expansion, and can wear a variety of steel grades. After perforation, the round tube blank is successively cross-rolled, continuously rolled or extruded by three rolls.
1. Seamless steel pipe for structure (GBT8162-2008). Mainly used for general structure and mechanical structure. Its representative material (brand): carbon steel, 20, 45 steel; alloy steel Q345, 20Cr, 40Cr, 20CrMo, 30-35CrMo, 42CrMo, etc.
2. Seamless steel pipes for conveying fluids (GBT8163-2008). It is mainly used for conveying Fluid Steel Pipe in engineering and large-scale equipment. The representative material (grade) is 20, Q345, etc.
3. Seamless steel pipes for low and medium pressure boilers (GB3087-2008) are used to manufacture various structures of low and medium pressure boiler superheated steam pipes, boiling water pipes and superheated steam pipes, large smoke pipes, small smoke pipes and arch bricks for locomotive boilers Hot-rolled and cold-drawn (rolled) seamless steel pipes of high-quality carbon structural steel for pipes. The representative material is 10, 20 steel.
Carbon Steel Tube, Mild Steel Pipe, Hot Rolled Steel Pipe, Weld Steel Pipe
Shandong Guanzhou Iron and Steel Group Co., Ltd. , https://www.guanzhouiron.com