1.1 CILXY Standard quadrupole with R//L circuit, spark Gap, Banana input, BNC output. X : [1-6] Coupling capacitor range Y : [_, M, L] AC current range, max. voltage with the largest capacitor of the range given: L : 125kV @ 50Hz M : 500kV @ 50Hz _ : 1000kV @ 50Hz Available standard quadrupoles: CIL3M: 200pF-800pF, 100mA CIL4L: 600pF-2.5nF, 100mA CIL4M: 600pF-2.5nF, 400mA CIL4: 600pF-3.5nF, 1.1A CIL5L: 2-9nF, 350mA CIL5M: 2-9nF, 700mA CIL5: 2-12nF, 3.8A CIL6M: 6-35nF, 1.5A

1.2 CILXY/V Standard quadrupole equipped with an additional voltage output for synchronization and voltage measurement. Tailor made divider ratio available on request. Available standard quadrupoles: CIL4M/V: 600pF-2.5nF, 400mA, 1µF CIL5M/V: 2nF-9nF, 700mA, 4µF CIL6M/V: 6nF-35nF, 1.5A, 10µF 1.3 CITXY Transformer type quadrupole. Isolated input and impedance matching. Recommended for measurements at HV cables and other applications requirring either the increased sensitivity or the input isolation. Available standard quadrupoles: CIT4M: 600pF-2.5nF, 400mA CIT4: 600pF-3.5nF, 1.1A CIT5M: 2-9nF, 700mA CIT5: 2-12nF, 3.8A CIT6M: 6-35nF, 1.5A 1.4 CT1 High frequency current transformer. Wide bandwidth up to 100MHz. Cast aluminum enclosure. Offers isolated coupling with various applications, such as line side coupling with surge capacitors on rotating machines or coupling to noise sources, for instance. Transfer ratio: 1:10 @ 50 Ohm Primary window: 15mm Bandwidth: 0.5-80MHz (-3dB) Bandwidth: 0.3-100MHz (-6db) 1.5 CT100 The CT100 is a clip-on HF current transformr (CT) that can be opened (>100mm) and clipped around a connecting cable, a ground lead, or even a feeding medium voltage cable with a high voltage motor installation. Transfer ratio: 1:10 @ 50Ohm Primary window: 100mm Bandwidth (-3dB): 2 - >=25MHz Bandwidth (-6dB): 1.2 - >=40MHz 1.6 IT1 The IT1 (HF-Isolation Transformer) was designed to meet the requirements of monitoring high voltage cable joints in a multi-point configuration. Due to the operating or heating current and further due to impulse voltages the screens of adjacent cables may severly deviate in their potentials. The design of the IT1 allows the isolation of a difference of 250 Volts between input and output permanently. It is tested to whitstand potential difference of 10kV (AC at 50Hz) for one minute in order to avoid damages due to such differential voltages (both AC and transients). Its high frequency behaviour is optimized for 50Ohm-systems and the use with multiplexer and RPA2. Transfer ratio: 1:1 @ 50Ohm Connection: BNC-BNC Test Voltage: 10kV @ 1min Bandwidth (-0.5dB): 2MHz - 10MHz @ 50Ohm Bandwidth (-3.0dB): 500kHz - 30MHz @ 50Ohm Bandwidth (-6.0dB): 300kHz - 80MHz @ 50Ohm 2 Coupling Assemblies The standard coupling capacitors listed with this chapter are mainly suited for on-line and off-line measurements on rotating machines, as well as for smaller test setups. A wider range of coupling capacitors and assemblies with quadrupoles and pre-amplifiers is available on request. These tailor made units are shipped with an individual data sheet and thus not included with this manual. 2.1 CC20A Coupling capacitor for permanent installation on rotating machines. Integrated HF current transformer CT1. Mounted on a cast aluminum enclosure. Suited for line side coupling. Capacitance: 145pF Nom. Voltage: 20kV Temp. Range: -20°C - +75°C HV connection: M10 GND connection: M5 PD output: BNC Height: 300mm(max) Diameter (top): 65mm Base: 100mm x 100mm x 65mm Weight: 1,9kg 2.2 CC20B Coupling capacitor for permanent installation on rotating machines. Integrated termination circuit leaving a superimposed AC component for sync purpose. Mounted on a cast aluminum enclosure. Suited for permanent line side coupling. Capacitance: 145pF Nom. Voltage: 20kV Temp. Range: -20°C - +75°C HV connection: M10 GND connection: M5 PD output: BNC Height: 300mm(max) Diameter (top): 65mm Base: 100mm x 100mm x 65mm Weight: 1,9kg 2.3 CC25A Coupling capacitor for temporary installation on rotating machines. Integrated HF current transformer CT1. Mounted on a cast aluminum enclosure. Suited for line side and neutral coupling. Capacitance: 1nF Nom. Voltage: 25kV Temp. Range: -20°C - +75°C HV connection: M8 GND connection: M5 PD output: BNC Height: 300mm(max) Diameter (top): 90mm Base: 140mm x 140mm x 72mm Weight: 3,2kg 2.4 CC25B Coupling capacitor for smaller laboratory test setups, off-line tests on rotating machines, and field tests in general. Integrated coupling impedance (CIL4L). Optional sync and voltage divider output (/V). Mounted on a cast aluminum enclosure. Suited for line side and neutral coupling as well as for off-line tests. Capacitance: 1nF Nom. Voltage: 25kV Temp. Range: -20°C - +75°C HV connection: M8 GND connection: M5 PD output: BNC Voltage output: BNC (CC25B/V, only) Divider Ratio: 1:250 (CC25B/V, only) Height: 300mm(max) Diameter (top): 90mm Base: 140mm x 140mm x 72mm Weight: 3,2kg 2.5 CC25C Coupling capacitor for field testing, off-line tests on rotating machines, and lab setups. Integrated quadrupole (CIL4L) and HF current transformer (CT1). Optional sync and voltage divider output (/V). Mounted on a cast aluminum enclosure. Capacitance: 1nF Nom. Voltage: 25kV Temp. Range: -20°C - +75°C HV connection: M8 GND connection: M5 PD output: BNC Voltage output: BNC (CC25C/V, only) Divider Ratio: 1:250 (CC25C/V, only) Height: 300mm(max) Diameter (top): 90mm Base: 140mm x 140mm x 72mm Weight: 3,2kg 2.6 CC100B Couping capacitor suited for test circuits, test bays, and cable PD fault location. Integrated quadrupole (CIL4L). Optional sync and voltage divider output (/V). Mounted on a cast aluminum enclosure. Capacitance: 1nF Nom. Voltage: 25kV Temp. Range: -20°C - +75°C HV connection: M8 GND connection: M5 PD output: BNC Voltage output: BNC (CC100B/V, only) Divider Ratio: 1:1000 (CC100B/V, only) Height: 695mm(max) Diameter (top): 300mm Base: 198mm x 198mm x 72mm Weight: 7,4kg 3. Coupling Capacitors CC-X Voltage 100 to 500 kV (higher on request) 100pF to 40nF, according to IEC60 and IEC270. Tailor-made coupling impedance and RPA preamplifier integrated on request. (X: Coupling capacitance, sample capacitance, ranges and maximum test voltage must be specified for order and quotation) 4. Filters Line (low voltage) and high voltage filters serve to eliminate electromagnetic noise from the test voltage source. PD Systems provides a service to record the electromagnetic interference and does consulting for laboratory optimization. 4.1 High Voltage Filters Tailor-made up to 800kV 4.2 Low Voltage One/three phase, mobile and stationary filters for eliminating disturbances on the transformer primary 5. Remote Preamplifiers and Signal Conditioning Modules 5.1 RPA1 Remote controlled and supplied preamplifier for the ICM (standard) Specification: Input Impedance: 10kOhm//50pF Bandwidth: 20kHz - 1MHz Roll-Off: 40dB/dec. Gain Steps: Off,0,20dB,40dB Input Sensitivity: <200µV 5.2 RPA1B Remote powered and controlled by the ICM acquisition unit. Technical data as RPA1, the RPA1B gets transparent when switched off or disconnected from the ICM acquisition unit. This allows connecting oscilloscopes and spectrum analyzers without removing the preamplifier 5.3 RPA1C Remote powered and controlled by the ICM acquisition unit. Technical data as RPA1, when powered by the ICM acquisition unit, the PD signal is connected to the preamp's input. When disconnected or switched off, the PD signal is disconnected from the RPA1C's input and transferred to an additional output of the RPA1C. This allows using two partial discharge measurement systems with the same coupling unit with no influence of the different input impedances. 5.4 RPA2 Remote powered and controlled by the ICM acquisition unit. The RPA2 signal conditioning amplifiers are designed for measuring PD in a frequency range higher than the range provided by the ICMsystem itself. They contain specific band-pass filter and circuits to convert the signal band to the ICM's frequency range. Typical applications of the RPA2: Generator and Motor Diagnosis Cable Joint Monitoring with the CCS cable sensor Input Impedance: 50Ohm//50pF Frequency Band (3dB): 2MHz to 20MHz Cut-Off: 40dB/dec. Gain Steps: Off, 0, 20, 40dB 5.5 RPA3 Remote powered and controlled by the ICM acquisition unit. The RPA3 signal conditioning amplifiers are designed for measuring PD in a frequency range higher than the range provided by the ICMs' itself. They contain specific band-pass filter and circuits to convert the signal band to the ICMs' frequency range. Typical applications of the RPA3: GIS Diagnosis Cable Joint Monitoring with the CCS cable sensor Localizing and Detection of PD sources with antennae close to the test object Input Impedance: 50Ohm/50pF Frequency Band (3dB): 200MHz to 1GHz Cut-Off: 40dB/dec. Gain Steps: Off, 0, 20, 40dB (Remote controlled by the ICMsystem) 5.6 RPA4 Remote powered and controlled by the ICM acquisition unit. Preamplifier set with fiber optical transmission link for PD measurements with the ICM. The frequency and response properties are according to the RPA1. Application: Severe electromagnetic disturbance Risk of hazard Measurements on high voltage potential 5.7 RPA5 Remote powered and controlled by the ICM acquisition unit. Ultrasonic sensor preamp, current and voltage source can be integrated in order to supply active ultrasonic sensors. Demodulator and Signal Shaper optional for use with resonant sensors. 5.8 RPA6 Remote powered and controlled by the ICM acquisition units. The RPA6 is a signal-conditioning pre-amplifier with a demodulating logarithmic transfer function. This module covers 4.5 decades in one range. Thus, the remote control used with the other pre-amplifiers to control the gain settings was freed up available to control the frequency range. Specification: Input Impedance: 10kOhm//50pF or 50Ohm//50pF Bandwidth: 40kHz - 800kHz 2MHz-20MHz 200MHz-600MHz Roll-Off: 40dB/dec. Gain Steps: None Input Sensitivity: <200µV 5.9 UHF1 UHF fixed gain preamplifier set for GIS diagnosis. Remote powered via the signal cable. Low noise input with over-voltage protection. Specification: Input Impedance: 50Ohm Frequency Band (3dB): 200MHz to 1GHz Gain: 27dB 6 Calibration Impulse Generators Standard calibration sources as well as sources for non-conventional applications are available to calibrate the PD measurements according to international standards or to evaluate the properties of the test object. A small lithium battery for up to 200 hours of continuous operation powers all these sources (auto power off: 15 minutes). Range and polarity of the output pulse is controlled with the two pushbuttons. Unlike with commonly used instruments, injecting a variable voltage step via a fixed capacitor generates the charge pulse of all these sources. The output frequency is quartz controlled. It automatically synchronizes to the line frequency if an AC component of the ambient light is detected. The calibration of the sources is traceable to international standards. 6.1 CAL1A Calibration Impulse Generator According to IEC60270 LCD showing the range 50Hz quartz and light synchronization Selectable pulse polarity Injection capacitor < 1pF BNC-Connector and BNC/Banana adapter Range: 1, 2, 5, 10, 20, 50, 100pC Available options for all sources: 60Hz quartz and light synchronization Two pulses per cycle (not with CAL2A&B) Single shot 6.2 CAL1B Calibration Impulse Generator Similar to CAL1A but: Injection capacitor < 100pF Range: 0.1, 0.2, 0.5, 1, 2, 5, 10nC 6.3 CAL1C Calibration Impulse Generator for the use with a 100pF high voltage injection capacitor. Similar to CAL1A but: Voltage output (50Ohm matched) 50Ohm termination LV 100pF capacitor for standard application Range: 1, 2, 5, 10, 20, 50, 100pC 6.4 CAL1D Calibration Impulse Generator Similar to CAL1A but: Injection capacitor < 10pF Range: 10, 20, 50, 100, 200, 500pC, 1nC 6.5 CAL1E Calibration Impulse Generator Similar to CAL1A but: Injection capacitor < 500pF Range: 1-50nC 6.6 CAL2A Calibration Impulse Generator for GIS sensor development and tests in the UHF range Similar to CAL1A but: Risetime: <=300ps Signal bandwidth: >= 1GHz (-3dB) N-Connector and N/Banana adapter Range: 1, 2, 5, 10, 20, 50pC 6.6 CAL2B Calibration Impulse Generator for GIS sensor development and tests in the UHF range Similar to CAL1A but: Voltage output (50Ohm source) Risetime: <=200ps (tf=100ns) Signal bandwidth: >= 1,5GHz (-3dB) N-Connector and N/Banana adapter Range: 1, 2, 5, 10, 20, 50V (into RL50Ohm) back to products

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