- Страна: Россия
- Область: Камчатский край
- Город: Усть-Хайрюзово
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- Опубликовано: 31.08.2018 02:13
- Истекает: Это объявление истекло
1InputAC415V, 3 phase，frequency: 50Hz
2Ambient Temperature-5° — 45°
4Output DC IdN0-25000AContinuously adjustable
5Output DC UdN0-12VContinuously adjustable
6regulated current accuracy±0.5%
8Mode of connectiondouble reverse star 6 pulse wave
9Control methodConstant current，
Local control/ remote controlswitching gear control
10Control functionPLC+HMIcommunicate with pc
11Current DC output modeforward output / reverse outputForward, reverse and interval time can be set
12Cooling modeWater / air
13Protection functionOver-current protection,Over-voltage protection,
Element damage Alarm,Over-temperature protection,
Cooler fault alarm
14Recordvoltage AC, voltage DC, current DC, power DC,
control angle, transformer oil temperature
15Allow overload capacity120% IdN 1 minWithin 24 hours
17Remote communication wayRS485
Digest of High Current Rectifier（HCR）technical documents.
Part twelve of User Manual
Chapter IV: Intelligent Fault Detector
As a new generation of intelligent SCR fault and bus temperature detector researched and developed for large rectifying (variable current) electrical equipment by means of modern electronics technology, BS-T1228-III has fault position display and light warning in the front panel and fault relay control output and fault remote transmission function in the real panel (communication with the host computer through 485) in case of detection equipment fault. With simple and easy use, this instrument may only be correctly wired according to the wiring diagram of each part at the rear of the detector.
1. 108 normally open contacts for fault detection, including:
96 KP detection points
12 high bus temperature points
2. Fault position display
3. Light indication alarm in case of fault
4. Relay output control functions in case of fault
5. Fault position remote transmission function
Ⅱ. Description of monitoring point matrix wiring:
KP fault detector has up to 108 normally open contacts for monitoring, which are accessed in matrix mode in wiring. The method for access of the normally open contacts to the monitoring board terminal block is shown below.
1. Monitoring element:
The element has two wiring pins, assumed pin 1 and pin 2.
2. Concatenated diode:
Connect a diode in only one pin (pin 1 or 2, one pin rather than pin 1) of each element and lead from one pin (pin not connected with the normally open contact) of the diode and one pin (pin not connected with the diode) of the normally open contact with two wires respectively, as shown in Figure 2 below.
3. Element arrangement in matrix mode:
3.1 Make 96 KP fault monitoring points and 12 temperature monitoring points into a matrix of 12 rows and 9 columns and make sure to connect the outgoing lines from one end of all diodes to the row lines and the outgoing lines from one end of the elements to the column line without mistakenly connecting.
3.2 Arrange all KP (ZP) monitoring elements in columns 1-8 and all temperature monitoring elements in the 9th column.
Figure 3 below shows the permutation and combination mode of 108 elements.
Ⅲ. Why to concatenate the diode:
1. Not concatenate diode:
Figure 4 is the wiring diagram without concatenated diode. According to this figure, if KP101 in the 10th row and 1st column, KP102 in the 10th row and 2nd column and KP111 in the 11th row and 1st column are damaged, KP112 in the 11th row and 2nd column is not changed. But the monitor detection results show that KP111 bad flexibility in the low 11th row makes the column line in the 1st column low. With KP101 bad flexibility, the low column line in the 1st column is transferred to the 10th row, the row line in the 10th row is low and the column line in the 2nd column is low due to KP102 bad flexibility. The monitor detects that KP112 and subsequent elements (KP112 and subsequent elements may not be damaged actually) are damaged and obtains an error result.
2. Concatenate diode
Figure 5 is the wiring diagram with concatenated diode. According to this figure, if KP101 in the 10th row and 1st column, KP102 in the 10th row and 2nd column and KP111 in the 11th row and 1st column are damaged, KP112 in the 11th row and 1st column is not changed. But the monitor detection results show that the 11th row is low, KP111 damage and flexibility make the 1st row line low. With KP101 damage and flexibility, the low column line in the 1st column is transferred to the diode D101 concatenated. Due to the role of D101, the low signal is blocked and the row line in the 10th row is not low. In this time, the low signal is not transmitted to the column line in the 2nd column although KP102 damage and flexibility and the monitor detects KP112 without error results.
Ⅳ. Front Panel
The upper part of the front panel displays the detector model, the two nixie tubes in the left below the model display the row number of the
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