P O R T A B L E H I G H V O L T A G ED. C. T E S T S E T S

V O N M O D E L C T E S T S E T S

TEL (205) 788-2437 • FAX (205) 780-4015E-MAIL: voncorp@voncorp.com • WWWEB: http://www.voncorp.com

P.O. BOX 110096 • 1038 LOMB AVENUE, S.W.

B I R M I N G H A M , A L A B A M A 3 5 2 1 1

®

®

The Model C family of test

sets with output current

metering at high voltage. The

170kv Model C-1.5+ is on

the left. The 100kv Model C-

1 or 120kv Model C-1+ is in

the middle. The 50kv Model

CG-.5 or 60kv Model CG-.5+

is on the right.

The Model CG family of test

sets with output current

metering in the ground return.

The 50kv Model CG-.5 or

60kv Model CG-.5+ is on the

left. The 100kv Model CG-1

or 120kv Model CG-1+ is in

the middle. The 170kv Model

CG-1.5+ is on the right.

H I G H V O L T A G E B A S E C A B I N E T50KV AND 60KV UNIT 100KV AND 120KV UNIT 170KV UNIT

LENGTH 21.25” (54.0cm) 21.25” (54.0cm) 21.25” (54.0cm)WIDTH 10.50” (26.7cm) 10.50” (26.7cm) 10.50” (26.7cm)HEIGHT 18.5” (47.0cm) 25.50” (64.8cm) 39.50” (100.3cm)WEIGHT 40 pounds (18.1kg) 54 pounds (24.5kg) 75 pounds (34kg)OUTPUT negative polarity negative polarity negative polarityCONTINUOUS 10ma to 50kv 5ma to 100kv 3ma to 170kv

7ma to 60kv 4ma to 120kvINTERMITTENT 20ma to 42kv 10ma to 84kv 10ma to 84kv

RIPPLE Less than 1% as ordinarily used.MATERIAL Red polyester fiberglass with metal base.

C O N T R O L B O XSTANDARD OPTION A

LENGTH 16.25” (41.3cm) 21” (53.3cm)WIDTH 13.50” (34.3cm) 16.75” (42.6cm)HEIGHT 8” (20.3cm) 9” (22.9cm)

7.50” (19.0cm) 8.75” (22.2cm)WEIGHT 27.3 pounds (12.4kg) 35 pounds (15.9kg)INPUT

MATERIAL Aluminum with black vinyl finish.

EACH CONTROL BOX CONTAINS:• A variable autotransformer for adjusting the output voltage from zero to maximum rated test set voltage.• An instantaneous circuit breaker.• A ground relay circuit so arranged that the high voltage cabinet must be grounded in order to operate the unit.• A linear rectifier-type primary 0-5 A.C. ammeter permits extrapolation of the D.C. output current from 1 milliamp to 5 milliamps. This is omitted in

the Model CG and units with option D with output current metering in both the high voltage output lead and the ground return.• A 50 microampere special high torque kilovoltmeter with its calibrating circuits. Each unit has two ranges. They are 0-15/50kv or 0-15/60kv or

0-30/100kv or 0-30/120kv or 0-60/170kv. Additional 0-5/10kv ranges (50kv to 120kv units) and 0-10/20kv ranges (170kv units) are availableas option A.

• A four or six conductor cord for connecting from the control box to the high voltage cabinet.• A storage compartment 5” (12.7cm) x 5-1/2” (14.0cm) x 12” (30.5cm) to hold the connecting cords and sectionalized discharge stick.• Varistors across the incoming line to the case ground constitute an alternate safety ground and provide surge protection to the test equipment.• A three wire cord with three wire grounding male cap plug.• A pilot light.• A cold guard selector switch with metered isolated return and metered ground return positions is furnished on the Model CG units and units with

option D.• Two instruction manuals.

SECT IONALIZED DISCHARGE ST ICK:Units rated 50kv, 60kv, 100kv and 120kv have a stick with an over-all length of 39” (99cm) and consist of two insulating sections, oneresistive section (4 megohm for 50kv & 60kv, 7.5 megohm for 100kv& 120kv units), one hook, one insulating shield, and one groundconnecting strap. Units rated 170kv have a stick with an overalllength of 65” (165cm) and consist of three insulating sections, tworesistive sections-7.5 megohms, one hook, one insulating shield, andone ground connecting strap.

PROTECT IVE OUTPUT RESISTOR:LENGTH 19” (48.3cm)DIAMETER 2-1/2” (6.4cm)WEIGHT 2-3/4 pounds (1.3kg)RATING 1 Megohm 80 watts 100kv

110V to 150V, 50-500 hertz A.C. (grounded) at 4 amps(average) for continuous full-rated output. 8 amp trip-out forapproximately 100% overload 240 volt/120 volt 50-500hertz A.C. is available as OPTION E.

110V to 150V, 50-500 hertz A.C. (grounded) at 4 amps(average) for continuous full-rated output. 8 amp trip-out forapproximately 100% overload 240 volt/120 volt 50-500hertz A.C. is available as OPTION E.

EACH HIGH VOLTAGE BASE CABINET CONTAINS:• A 625 volt amp, 110v to 20kv or 220v to 20kv (Option E), air-insulated, epoxy-impregnated, high voltage transformer.• A Cockcroft-Walton voltage multiplier circuit specially engineered for this particular application.• A kilovoltmeter multiplier resistor connected directly to the high voltage guard circuit. This gives direct voltage measurement of the high voltage

output.• A magnetically and electrostatically shielded and guarded output meter assembly in the HIGH VOLTAGE LEAD with ranges of 0-100 microamp

and 0-1 milliamp. Each meter is individually protected by a special bypass circuit. Range changing is accomplished automatically. Special rangescan be furnished. This assembly is replaced by a multirange 0-10 microammeter in the control box in the Model CG. The overlapping ranges are0-10/30/100/300/1,000/3,000/10,000/30,000 microamps.

• A neon protective tube to limit the kilovoltmeter circuit to 50 volts.• A high voltage hot guard (non-measured) connection when current metering is provided in the high voltage lead.• A cold guard (non-measured) connection when current metering is provided in the ground return lead. (Model CG and units with option D).• A metal ball suitable for corona free operation at maximum voltage is provided on the output terminal for use on top of the protective output

resistor.

These units can be extended to 500KV with VON topping units. The maximum output voltage level is limited by the required output current at that voltage.

V O N M O D E L CT E S T S E T S

Impulse fault location (thumping) accessories can

be added to all Model C test sets. Shown is a

50kv Model C-.5 with impulse control gap and

1 mfd 30kv impulse service capacitor.

The 200kv, 100kv, and 50kv

topping unit modules will

increase the maximum output

voltage of any Model C or CG

test set and can be added at

any time.