PS System for DRFS PS System for Diode-type klystrons

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Presentation transcript:

PS System for DRFS PS System for Diode-type klystrons M. Akemoto, KEK PS System for Diode-type klystrons PS System for Modulation-anode-type klystrons

PS system for Diode-type klystrons 2 3 (0V) 6.6 kVAC, 3φ VCB Transformer Input:6.6kV Output: 420V, 200V, 100V Klystron #1 Klystron #13 Marx Modulator Heater Trans. Oil Tank 7 1 HK HV cable Heater PS H Klystron Heater/Cathode HV Box #1 6 4 5 Control 8 6.6kV Main Power Line Klystron system connected to HV cables in parallel

Cost Estimation List No. Component Quantity Suppliers Specification 1 VCB Toshiba, Mitsubishi 6.6 kV , 3φ, 100 A fault current 2 Transformer Nichicon 6.6 kV, 3φ / 420 V,3φ, 200 V, 1φ, 100 V,1φ, 300 kVA 3 Marx Modulator DTI, SLAC, PPJ 67.5kV, 273 A, 2.4 ms, 5 Hz 4 Heater PS Matsusada,Takasago 134V, 18.3 A, 3 kVA, Constant current 5 Heater Trans. Oil Tank NTD 200 V AC, 3 kVA, 80 kV Isolation Trans. 6 Klystron Heater/Cathode HV Box 13 KEK, NTD HV floating 7 HV Cable - Fujikura RG-220/U , 150 kVAC 8 Control PLC, optical link

Marx Modulator 3 Performance requirements 67.4 kV peak voltage 273 A peak current 2.4 ms pulse width 5 Hz pulse repetition frequency +/- 0.5% flat top 221 kW average power <20 J deposited into klystron from gun spark Input voltage 3φ, 420 VAC, 50 Hz

PS system for Modulation-anode-type klystrons 6 2 3 Crowbar Circuit (0V) Droop compensation PS 6.6 kVAC, 3φ VCB Transformer Input:6.6kV Output: 420V, 200V, 100V Klystron #1 Klystron #13 Switching PS MA modulator MA Spark Gap Switch Anode Pulser 1 10 HK HV cable Heater PS H 4 5 Klystron Heater/Cathode HV Box #1 9 7 8 Control 11 6.6kV Main Power Line

Cost Estimation List No. Component Quantity Suppliers Specification 1 VCB Toshiba, Mitsubishi 6.6 kV , 3 phase, 100 A fault current 2 Transformer Nichicon 6.6 kV, 3φ / 420 V,3φ, 200 V, 1φ, 100 V,1φ 300 kVA 3 DC Switching PS Matsusada, Nichicon -65.8 kV, 166 kW 4 Capacitor bank 44 µF,-65.8 kV 5 Crowbar circuit Ignitron or gap switch 6 Droop compensation PS PPJ, Nichicon, Matsusada, DTI -13 kV, 263 A peak, 2,4 ms 7 Heater PS NTD 200 V AC, 3 kVA, 80 kV Isolation Trans. 8 MA modulator Nissin,Nichicon -53 kV, 2.4 ms, 5 Hz 9 Klystron Heater/Cathode HV Box 13 KEK, NTD HV floating 10 HV Cable - Fujikura RG-220/U , 150 kVAC 11 Control PLC, optical link

Summary We have designed two kind of PS Systems for DRFS. Now, we ask some companies to estimate the cost, size of the system components. We will compare them and decide the PS system for DRFS.