ALSTOM 3BHB0190脈沖輸入卡件
電流隔離是轉(zhuǎn)換器的一種選擇電流范圍2050…5150 A，額定電壓
對于額定電壓為1190 V和12脈沖串聯(lián)>2倍500 V的電流隔離是標準設(shè)備。它用于代替高歐姆電阻電壓測量，具有完全隔離的優(yōu)點從電源部分到電子部分。變壓器T90和直流傳感器A92位于轉(zhuǎn)換器模塊外部。內(nèi)部交流和直流電壓測量通道打開并連接到T90和A92單位.備注一次側(cè)的端子變壓器采用特殊設(shè)計（接線端子）。
處理提示：首先逆時針轉(zhuǎn)動螺釘至末端止動塊，然后旋出收縮蓋。放在電纜接線片，在shrowding蓋和
通過以下方式固定連接：
順時針轉(zhuǎn)動螺釘。DCS轉(zhuǎn)換器模塊的電源接口
900 A至5150 A的C3和C4型包括：
兩個板中的一個-測量板SDCS-PIN-5x以及脈沖變壓器板SCDS-PIN-41。
SDCS-PIN-5x有不同的版本：
用于所有線電壓轉(zhuǎn)換器的SDCS-PIN-51
帶線路電壓的轉(zhuǎn)換器的SDCS-PIN-52。500伏下圖顯示了SDCS引腳41和SDCS引腳5x之間的不同連接板取決于應(yīng)用2象限或4象限和結(jié)構(gòu)類型。
自1998年起交付的轉(zhuǎn)換器將配備SDCS-PIN-41A，可完全替代使用中的轉(zhuǎn)換器。測量板SDCS-PIN-5x
該板始終與SDCSPIN-41板一起使用。電路板上有電路用于電流、電壓和溫度測量以及硬件編碼。
電流由以下位置的電流互感器測量：
由二極管電橋整流的交流電源
用負載電阻將額定電流定為1.5 V。通過切割調(diào)整電流響應(yīng)
根據(jù)從電路板輸出電阻器（R1…R21）到編碼表。電阻器R22…R26為：用于電流等于零的檢測。這些必須根據(jù)第二個表切斷電阻器。
電壓（U1、V1、W1和C1（+）和D1（-）為通過使用高歐姆電阻鏈測量。通過激活1電源接口板PG 63x0來實現(xiàn)交流和直流電壓的縮放DCP50x型轉(zhuǎn)換器單元。有兩種不同
正在使用的版本。使用的類型有：
-400/500 V時90 A…150 A轉(zhuǎn)換器的第6320頁
-400/500 V時250 A…540 A轉(zhuǎn)換器的第6330頁
PG 63x0板包括：
-點火脈沖電路和脈沖變壓器
-通過電流測量電樞電流變壓器
-晶閘管保護用緩沖電路（由RC電路和MOV元件組成）
-交流和直流高歐姆電壓測量
-通過PTC測量散熱器溫度傳感器
-額定電流、零電流檢測的定標以及HW類型編碼
-過電壓保護和電壓保險絲測量
The Galvanic isolation is an option for converters in
the current range 2050...5150 A and rated voltages
1000 V. For converters with a rated voltage of
1190 V and 12-pulse serial > 2x 500 V the galvanic
isolation is a standard equipment. It is used to replace the high-ohmic resistance voltage measurement and gives the advantage of a total isolation
from power part to electronic part.
The transformer T90 and the DC transducer A92
are located outside the converter module. The internal AC and DC voltage measurement channels
are opened and connected to the T90 and A92
units.Remark
The terminals on the primary side of the
transformer are in special design (lug terminals).
Handling hints: First turn the screw conterclockwise to the end stop, then swing out
the shrowding cover. Put in
the cable lug, swing in the
the shrowding cover and
fasten the connection by
turning the screw clockwise.The Power Interface of DCS converter modules
model C3 and C4 from 900 A up to 5150 A consists
of two boards - the Measuring board SDCS-PIN-5x
and the Pulse transformer board SCDS-PIN-41.
There are different versions of the SDCS-PIN-5x:
SDCS-PIN-51 for converters with all line voltages
SDCS-PIN-52 for converters with line volt. 500 V
The following figures show the different connections between the SDCS-PIN-41 and SDCS-PIN-5x
board depending on the application 2- or 4-quadrant and the construction type.
Converters, delivered from 1998 on, will be
equipped with SDCS-PIN-41A, which is a full replacement for converters, which alredy in use.Measuring board SDCS-PIN-5x
This board is always used together with SDCSPIN-41 board. On this board there are the circuits
located needed for current, voltage and temperature measuring and for hardware coding.
The current is measured by current transformers at
the AC supply, rectified by a diode bridge and
scaled with burden resistors to 1.5 V as rated current. The current response is adjusted by cutting
out resistors (R1 ... R21) from the board according
to the coding table. The resistors R22 ... R26 are
used for the current equal to zero detection. These
resistors must be cut off according to a second table.
Voltages (U1, V1, W1 and C1(+) and D1(-)) are
measured by using high ohm resistor chains. Scaling of AC and DC voltage is done by activating 1The power interface board PG 63x0 is used for
converter units type DCP50x. There are 2 different
versions in use. The used types are:
- PG 6320 for 90 A...150 A converters at 400/500 V
- PG 6330 for 250 A...540 A converters at 400/500 V
The PG 63x0 boards consists of:
- firing pulse circuits and pulse transformers
- measurement of the armature current via current
transformers
- snubber circuit for thyristors protection
(consists of RC circuits and MOV elements)
- AC and DC high ohmic voltage measurement
- heat sink temperature measurement via PTC
sensor
- scaling for rated current, zero current detection
and HW type coding
- fuses for overvoltage protection and voltage
measuring
