power

Slide1: 

J. Sandberg September 2005 JSandberg@bnl.gov Summer Shutdown Work 2005

AGS Booster PS: 

AGS Booster PS Replaced and tested 80 new Siemens relays / connect to PLC Installed Klixon on all AGS magnets. Constructed and tested a PLC Monitoring Rack. Super-periods D,E will be made functional Replace all the AGS MMPS controllers with PSI’s. Install a Booster MMPS phase shifting transformer RMS current interlock. Installed a current error warning.

AGS Booster PS: 

AGS Booster PS Warm Snake Retrofitting 3 ACME PS’s with new regulators & controls. Manufacturing 3 new LRC passive filters In the process of commissioning these PS’s Modifying DC cable connections for to be used for the new warm snake magnets in E19, F1.

AGS Booster PS: 

AGS Booster PS AGS cold snake 3 ITECO power supplies paralleled for the A20 BLW. New configuration of the B2,B3, B4,B5 BLW and modifications of the Danfysik PS. New configuration of the A16,A17,A18,A19 BLW and modifications of the Danfysik PS. Split of the A19 and B1 quads so they could be fed from two independent PS’s.

AGS Booster PS: 

AGS Booster PS New PSI controls for the Booster V,H sextuple power supplies and control modifications for the Booster V,H quad power supplies. Test and trouble shoot vertical quad dc buss drift. Test and modify digital read back signals. Test and modify vertical quad for 750 amp operation. Test and Calibrate of the Booster PPMR

AGSMMPS: 

AGSMMPS

AGSMMPS: 

AGSMMPS

AGSMMPS: 

AGSMMPS

Westinghouse Bearing #4 9/6/05: 

Westinghouse Bearing #4 9/6/05

Westinghouse Bearing #4: 

Westinghouse Bearing #4

Experimental Power Supplies: 

Experimental Power Supplies STAR Modifications to three of the five power supplies water system (MMPS and Pole Tips PS’s). Water solenoids and flow switches moved outside PS for ease of trouble shooting Rewire water flow switches to PLC Add Main Magnet PS Soft Start indications to PLC and Graphics.

Experimental Power Supplies: 

Experimental Power Supplies Phenix Add Current Error Detector Boards to the four power supplies Brahms No work done Phobos No work done

Pulsed Power Team: 

Pulsed Power Team RHIC Abort Kicker  Rework mechanical support and electrical connection of PFN capacitor bank. Rework, modify pre-fire detect chassis. RHIC Injection Kicker         Change termination resistor from 25 ohms to 40 ohms. Tested at 40 kV AGS tune meter   Tested new controls

Pulsed Power Team: 

Pulsed Power Team A5 kicker             Re-tuning is in process in order to improve current waveform Booster Back Legs Modified charging and read back electronics to provide calibrated controls for MCR AGS DC bump             Modified software, modify control chassis.  Dummy load chassis construction and installation in process

Pulsed Power Team: 

Pulsed Power Team

Booster & AGS RF Systems: 

Booster & AGS RF Systems Booster: LLRF Upgrade: Fast feedback improvements for Band 2 systems AGS: LLRF Upgrade: Booster type digital LLRF Replace all the Capacitors in the Anode PS's Repair Station E (change gassy tube)

RHIC RF Systems: 

RHIC RF Systems Staggering blue & yellow storage cavities (safety concerns) New Control wiring R&D for 197 MHz RF window Redesign and rebuild tuners for acceleration systems Work on new ferrite type tuners for acceleration system

RHIC RF Systems-Before: 

RHIC RF Systems-Before

RHIC RF Systems--After: 

RHIC RF Systems--After

RHIC Power Supplies: 

RHIC Power Supplies IR Power Supplies and QPA’s Checking all Dynapower p.s.’s for loose wires on gate drive cards and other wiring (2/6) Inspecting all D connector cables between qpa and PS’s.

RHIC Power Supplies: 

IR Power Supplies and QPA’s: Checking all current regulator card relays. Installing fan interlock test points on QPA’s. Checking all insulation displacement connectors on QPA’s that tripped on an OVC fault. All of the DC cables and signal cables between the p.s.’s and the QPA’s were labeled in the service buildings. This is done. RHIC Power Supplies

RHIC Power Supplies: 

RHIC Power Supplies IR Power Supplies and QPA’s: All of the 150A and 300A p.s.’s were opened so the connections could be checked and a soft start resistor tested. One resistor failed during the run. Two more suspect resistors were found during this inspection. Maintenance has been completed on the 6000A Quench Switches at 1010A.

RHIC Power Supplies: 

Corrector Lead Voltage Monitor System Installing new 1-Wire voltage monitor boards at each CQS and triplet corrector leads total of 492 boards The system monitors the total voltage across a magnet circuit at the room temperature end of the gas cooled leads. At DC currents this is a measure of the lead temperature. RHIC Power Supplies

RHIC Power Supplies: 

Corrector Power Supplies 50 correctors removed due to excessive voltage ripple. Cleaning the internal DCCT connections solved problem RHIC Power Supplies

Main Power Supplies: 

Adding instrumentation to monitor gate current of OCC Quench SCRs. This will detect an abnormal condition and report to the control system. Maintenance on all Phoenix style connector connections. Main Power Supplies RHIC Power Supplies

RHIC Power Supplies: 

RHIC Power Supplies New Software and Software Modifications Improvements made to automatic QLI analysis program Improvements to snapshot selector window A program to check for PS errors during beam abort which enters data into e-log automatically.

AGS Cold Snake P.S.: 

Shorten MADC cables for PS analog readbacks. Replaced Quench Heaters so variable units could be used as spares. Replaced D connector backshells. AGS Cold Snake P.S. RHIC Power Supplies

Tilt Meters: 

Tilt meters are being installed on Q1, Q2 and Q3 in sectors 3 and 4. They should be ready to be used sometime during the week of 9/25. Tilt Meters RHIC Power Supplies

RHIC BPM Shutdown Status: 

RHIC BPM Shutdown Status Board modifications Approx. 200 of total 750 boards have been modified 800 analog mux daughter cards received and tested 800 splitter boards received and tested Approx. 35 boards tested and ready for installation

RHIC BPM Shutdown Status: 

RHIC BPM Shutdown Status Board modification goal To modify every board! An optimistic goal, but should be achievable with proper manpower Backup plan is to modify set of modules and swap entire location on maintenance days

RHIC BPM Shutdown Status: 

RHIC BPM Shutdown Status

Electrical Systems General: 

Electrical Systems General NRTL Inspection Program in full swing at C-AD Labeling of Switches and FDS as per NFP70E in progress Electrical System Drawings being Updated and Corrected Program to Remove Unused Cables Begun