Siemens MJ-5, Инструкция по установке и эксплуатации

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Siemens Industry, Inc. 85
Rewiring the GE Control Box (Refer to 21-204-071-401):
1) Mount the Siemens PDS receptacle (using the DIN rail, Item #3) to the two studs
about 25% of the distance from the top on this enclosure. Two welded studs will have
to be removed to mount this assembly. Install this per
View “A” – “A”. Tighten. Note that there is a space left behind the DIN rail so that you
may route the wires behind the PDS terminal.
2) Then mount the PT Terminal Block Assembly (Item #4, Part # 21-116-295-501) in the
upper right hand corner of the control enclosure. This will be used to connect the
internal PT wires. Then you can easily connect the appropriate PT voltage to the P2
terminal on the PDS plug.
3) Wire the BLK (J1), RED (J3), ORG (J5) wires to this PT Terminal Block. Refer to the
GE SM3 wire list on 21-204-071-401. Use the wire lugs provided. Suggestion: Do
NOT cut the wires too short.
4) Now wire the appropriate wires to the female PDS terminal you mounted in the
enclosure. Use the Lugs provided in the Kit. Refer to the GE SM3 wire list on 21-
204-071-401. Suggestion: Do NOT cut the wires too short.
5) Crimp the
“Dead End” lugs provided in the Kit to each wire left over. DO NOT crimp
more than ONE wire to a lug.
6) Reconnect the GE plug to the bottom of the voltage regulator position indicator. From
now on, removing the Siemens PDS plug will short the CT without removing the GE
plug.
7) Place Voltage Regulator in Service or place appropriate voltage on the Bushings to
test the PT ratio.
8) Read the voltages on the PDS receptacle inside the cabinet. If voltages are correct
(120VAC from U2 to E) , install MJ- panel as below.
Installing the MJ- Control Panel:
1) Remove the hinges from the Siemens MJ- control panel (left side) and install the
capture strip included in the retrofit kit on the left side of the panel.
2) Install the retrofit hinges (or the removed hinges from the SM3 panel) on the right
side of the MJ- panel.
3) Install the MJ- control panel to the GE cabinet using the pins removed from the hinges
in step 4 (Removing) above.
4) Connect PDS plug on the MJ- to PDS receptacle in cabinet and tighten wing nuts.
Configuring the MJ- Control Panel
1)
For “Util Winding Pol”, select “Normal”
2)
For “Tap Changer Type”, select “GE”
3)
For “Regulator Type”, select “Inverted” (regardless of regulator’s actual type)
4)
Enter the control winding voltage ratio in “P2PT” screen and the “U2PT” screen.
Note: The control winding (E) voltage, transformer voltage, CT ratio, “I Full Load,”
“I Load Max,” and other parameters may be read from the regulator nameplate.